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Src	Date (GMT)	Titre	Description	Tags	Stories	Notes
	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	★★
	2023-12-29 14:39:00	Des pirates Kimsuky déploient Appleseed, Meterpreter et Tinynuke dans les dernières attaques Kimsuky Hackers Deploying AppleSeed, Meterpreter, and TinyNuke in Latest Attacks (lien direct)	Nation-state actors affiliated to North Korea have been observed using spear-phishing attacks to deliver an assortment of backdoors and tools such as AppleSeed, Meterpreter, and TinyNuke to seize control of compromised machines. South Korea-based cybersecurity company AhnLab attributed the activity to an advanced persistent threat group known as Kimsuky. “A notable point about attacks that Nation-state actors affiliated to North Korea have been observed using spear-phishing attacks to deliver an assortment of backdoors and tools such as AppleSeed, Meterpreter, and TinyNuke to seize control of compromised machines. South Korea-based cybersecurity company AhnLab attributed the activity to an advanced persistent threat group known as Kimsuky. “A notable point about attacks that	Tool Threat	APT 43	★★★
	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	★★★
	2023-05-05 15:49:00	N. Corée des pirates de Kimsuky utilisant un nouvel outil Recon Reonshark dans les dernières cyberattaques N. Korean Kimsuky Hackers Using New Recon Tool ReconShark in Latest Cyberattacks (lien direct)	L'acteur de menace nord-coréen parrainé par l'État connu sous le nom de Kimsuky a été découvert à l'aide d'un nouvel outil de reconnaissance appelé Reonshark dans le cadre d'une campagne mondiale en cours. "[Reonshark] est activement livré à des individus spécifiquement ciblés par le biais de courriels de lance-phishing, des liens OneDrive menant à des téléchargements de documents et à l'exécution de macros malveillants", cherche aux chercheurs de Sentinélone Tom Hegel The North Korean state-sponsored threat actor known as Kimsuky has been discovered using a new reconnaissance tool called ReconShark as part of an ongoing global campaign. "[ReconShark] is actively delivered to specifically targeted individuals through spear-phishing emails, OneDrive links leading to document downloads, and the execution of malicious macros," SentinelOne researchers Tom Hegel	Tool Threat	APT 43	★★★
	2023-04-25 18:22:00	Anomali Cyber Watch: Deux attaques de la chaîne d'approvisionnement enchaînées, leurre de communication DNS furtive de chien, Evilextractor exfiltrates sur le serveur FTP Anomali Cyber Watch: Two Supply-Chain Attacks Chained Together, Decoy Dog Stealthy DNS Communication, EvilExtractor Exfiltrates to FTP Server (lien direct)	The various threat intelligence stories in this iteration of the Anomali Cyber Watch discuss the following topics: APT, Cryptomining, Infostealers, Malvertising, North Korea, Phishing, Ransomware, and Supply-chain attacks. 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 First-Ever Attack Leveraging Kubernetes RBAC to Backdoor Clusters (published: April 21, 2023) A new Monero cryptocurrency-mining campaign is the first recorded case of gaining persistence via Kubernetes (K8s) Role-Based Access Control (RBAC), according to Aquasec researchers. The recorded honeypot attack started with exploiting a misconfigured API server. The attackers preceded by gathering information about the cluster, checking if their cluster was already deployed, and deleting some existing deployments. They used RBAC to gain persistence by creating a new ClusterRole and a new ClusterRole binding. The attackers then created a DaemonSet to use a single API request to target all nodes for deployment. The deployed malicious image from the public registry Docker Hub was named to impersonate a legitimate account and a popular legitimate image. It has been pulled 14,399 times and 60 exposed K8s clusters have been found with signs of exploitation by this campaign. Analyst Comment: Your company should have protocols in place to ensure that all cluster management and cloud storage systems are properly configured and patched. K8s buckets are too often misconfigured and threat actors realize there is potential for malicious activity. A defense-in-depth (layering of security mechanisms, redundancy, fail-safe defense processes) approach is a good mitigation step to help prevent actors from highly-active threat groups. MITRE ATT&CK: [MITRE ATT&CK] T1190 - Exploit Public-Facing Application \| [MITRE ATT&CK] T1496 - Resource Hijacking \| [MITRE ATT&CK] T1036 - Masquerading \| [MITRE ATT&CK] T1489 - Service Stop Tags: Monero, malware-type:Cryptominer, detection:PUA.Linux.XMRMiner, file-type:ELF, abused:Docker Hub, technique:RBAC Buster, technique:Create ClusterRoleBinding, technique:Deploy DaemonSet, target-system:Linux, target:K8s, target:Kubernetes RBAC 3CX Software Supply Chain Compromise Initiated by a Prior Software Supply Chain Compromise; Suspected North Korean Actor Responsible (published: April 20, 2023) Investigation of the previously-reported 3CX supply chain compromise (March 2023) allowed Mandiant researchers to detect it was a result of prior software supply chain attack using a trojanized installer for X_TRADER, a software package provided by Trading Technologies. The attack involved the publicly-available tool SigFlip decrypting RC4 stream-cipher and starting publicly-available DaveShell shellcode for reflective loading. It led to installation of the custom, modular VeiledSignal backdoor. VeiledSignal additional modules inject the C2 module in a browser process instance, create a Windows named pipe and	Ransomware Spam Malware Tool Threat Cloud	Uber APT 38 ChatGPT APT 43	★★
	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	★★
	2022-02-15 20:01:00	Anomali Cyber Watch: Mobile Malware Is On The Rise, APT Groups Are Working Together, Ransomware For The Individual, and More (lien direct)	The various threat intelligence stories in this iteration of the Anomali Cyber Watch discuss the following topics: Mobile Malware, APTs, Ransomware, Infostealers, 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 What’s With The Shared VBA Code Between Transparent Tribe And Other Threat Actors? (published: February 9, 2022) A recent discovery has been made that links malicious VBA macro code between multiple groups, namely: Transparent Tribe, Donot Team, SideCopy, Operation Hangover, and SideWinder. These groups operate (or operated) out of South Asia and use a variety of techniques with phishing emails and maldocs to target government and military entities within India and Pakistan. The code is similar enough that it suggests cooperation between APT groups, despite having completely different goals/targets. Analyst Comment: This research shows that APT groups are sharing TTPs to assist each other, regardless of motive or target. Files that request content be enabled to properly view the document are often signs of a phishing attack. If such a file is sent to you via a known and trusted sender, that individual should be contacted to verify the authenticity of the attachment prior to opening. Thus, any such file attachment sent by unknown senders should be viewed with the utmost scrutiny, and the attachments should be avoided and properly reported to appropriate personnel. MITRE ATT&CK: [MITRE ATT&CK] Command and Scripting Interpreter - T1059 \| [MITRE ATT&CK] Phishing - T1566 Tags: Transparent Tribe, Donot, SideWinder, Asia, Military, Government Fake Windows 11 Upgrade Installers Infect You With RedLine Malware (published: February 9, 2022) Due to the recent announcement of Windows 11 upgrade availability, an unknown threat actor has registered a domain to trick users into downloading an installer that contains RedLine malware. The site, "windows-upgraded[.]com", is a direct copy of a legitimate Microsoft upgrade portal. Clicking the 'Upgrade Now' button downloads a 734MB ZIP file which contains an excess of dead code; more than likely this is to increase the filesize for bypassing any antivirus scan. RedLine is a well-known infostealer, capable of taking screenshots, using C2 communications, keylogging and more. Analyst Comment: Any official Windows update or installation files will be downloaded through the operating system directly. If offline updates are necessary, only go through Microsoft sites and subdomains. Never update Windows from a third-party site due to this type of attack. MITRE ATT&CK: [MITRE ATT&CK] Video Capture - T1125 \| [MITRE ATT&CK] Input Capture - T1056 \| [MITRE ATT&CK] Exfiltration Over C2 Channel - T1041 Tags: RedLine, Windows 11, Infostealer	Ransomware Malware Tool Vulnerability Threat Guideline	Uber APT 43 APT 36 APT-C-17

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