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Kraken Ransomware

Nov 21, 2025 1:56:50 PM / by The Hivemind posted in Threat Bulletin, Cross-Platform Ransomware, double extortion, HelloKitty successor, Cloudflared persistence, Kraken ransomware, ESXi ransomware, ChaCha20 encryption, SMB exploitation

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Verticals Targeted: None specified
Regions Targeted: United States, United Kingdom, Canada, Denmark, Panama, Kuwait
Related Families: HelloKitty

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Landfall Android Spyware

Nov 17, 2025 12:33:16 PM / by The Hivemind posted in Threat Bulletin, Android Malware, DNG exploit, Landfall spyware, CVE-2025-21042, Samsung zero-day, mobile espionage, SELinux manipulation

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Verticals Targeted: Not specified
Regions Targeted: Middle East
Related Families: None

Executive Summary

A novel Android spyware family, dubbed Landfall, leveraged a zero-day vulnerability in Samsung's image processing library to compromise Galaxy devices. The campaign, active since mid-2024, enabled extensive surveillance capabilities and remained undetected until historical samples were analyzed post-patch.

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Rise of the AI-Enabled Malware

Nov 10, 2025 1:41:22 PM / by The Hivemind posted in Threat Bulletin, Data Exfiltration, AI-enabled malware, LLM misuse, FRUITSHELL, PROMPTFLUX, PROMPTLOCK, dynamic obfuscation, state-sponsored AI, PROMPTSTEAL, QUIETVAULT, APT28, Gemini API abuse

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Verticals Targeted: None Specified
Regions Targeted: Ukraine
Related Families: FRUITSHELL, PROMPTFLUX, PROMPTLOCK, PROMPTSTEAL, QUIETVAULT

Executive Summary

Industry researchers have noted the emergence of AI-integrated malware that queries large language models during runtime to generate code, obfuscate payloads, and adapt behaviors. This evolution extends beyond productivity aids, enabling nation state actors and cybercriminals to enhance intrusion chains with dynamic capabilities. Associated malware includes FRUITSHELL, PROMPTFLUX, PROMPTLOCK, PROMPTSTEAL, and QUIETVAULT.

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Airstalk Used in Supply Chain Attacks

Nov 7, 2025 12:58:20 PM / by The Hivemind posted in Threat Bulletin, Supply Chain Attack, PowerShell malware, Airstalk Malware, Browser Exfiltration, AirWatch API, MDM Abuse, Nation-State Actor, .NET Malware, CL-STA-1009

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Verticals Targeted: Business Process Outsourcing (BPO)
Regions Targeted: Not Specified
Related Families: None

Executive Summary

Airstalk is a new Windows malware family deployed by a suspected nation-state actor in supply chain attacks, leveraging AirWatch API for covert C2 to exfiltrate browser data. Available in PowerShell and .NET variants, the malware highlights evolving threats to third-party vendors.

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MuddyWater Targets MENA Governments With Phoenix Backdoor

Nov 3, 2025 2:09:14 PM / by The Hivemind posted in Threat Bulletin, MuddyWater, Phishing Campaign, credential stealers, cyber espionage, Middle East targeting, VBA macros, FakeUpdate injector, Iran APT, Phoenix Backdoor, RMM tools

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Verticals Targeted: Government
Regions Targeted: Middle East, North Africa
Related Families: Phoenix, FakeUpdate

Executive Summary

A sophisticated phishing operation has been attributed to the Iran-linked APT MuddyWater, deploying an updated Phoenix backdoor to conduct espionage against government and international entities. The campaign leverages compromised mailboxes and macro-enabled Word documents to deliver custom injectors and persistence mechanisms, highlighting the group's reliance on trusted channels for initial access.

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COLDRIVER Updates Its Arsenal

Oct 31, 2025 2:15:39 PM / by The Hivemind posted in Threat Bulletin, Star Blizzard, AES-256-CBC encryption, COLDRIVER malware, Russian state-sponsored cyber threats, YESROBOT, ClickFix lure, malware infection chain, MAYBEROBOT, high-value target attacks, NOROBOT, cybersecurity defense

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Verticals Targeted: NGOs, Policy Advisors, Dissidents
Regions Targeted: Not Specified
Related Families: LOSTKEYS, COLDCOPY, YESROBOT, MAYBEROBOT

Executive Summary

Industry researchers have identified new malware families, including NOROBOT, YESROBOT, and MAYBEROBOT, deployed by the Russian state-sponsored group COLDRIVER, targeting high-value individuals in NGOs, policy advisors, and dissidents. This rapid retooling, observed after the May 2025 disclosure of LOSTKEYS, showcases COLDRIVER’s evolving tactics to evade detection while maintaining aggressive intelligence collection.

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Salt Typhoon Targets European Telecom

Oct 28, 2025 12:48:06 PM / by The Hivemind posted in Threat Bulletin, Telecommunications, Salt Typhoon, DLL sideloading, zero-day exploits, SNAPPYBEE, Citrix NetScaler, cyber espionage

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Verticals Targeted: Telecommunications
Regions Targeted: Europe
Related Families:  SNAPPYBEE (Deed RAT)

Executive Summary

Salt Typhoon, a China-linked advanced persistent threat (APT) group, has been targeting global critical infrastructure using sophisticated tactics like DLL sideloading and zero-day exploits. Recent activity targeted a European telecommunications entity.

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Famous Chollima Evolves Its Arsenal, Merging BeaverTail and OtterCookie

Oct 24, 2025 1:15:09 PM / by The Hivemind posted in Threat Bulletin, Famous Chollima, North Korean cyber threats, DPRK hackers, BeaverTail malware, OtterCookie backdoor, cryptocurrency stealers, InvisibleFerret payload

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Verticals Targeted: Not specified
Regions Targeted: Sri Lanka
Related Families: BeaverTail, OtterCookie, InvisibleFerret

Executive Summary

Famous Chollima, a DPRK-aligned threat group, has evolved its arsenal, with BeaverTail and OtterCookie increasingly merging functionalities to steal credentials and cryptocurrency via deceptive job offers. A recent campaign involved a trojanized Node.js application distributed through a malicious NPM package, highlighting the group's adaptation in delivery methods.

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