Cyber Risks · Cisco Talos

UAT-5647 targets Ukrainian and Polish entities with Rom Com malware variants

Summary: Cisco Talos reports that UAT-5647, a threat actor conducting both ransomware and espionage attacks, has accelerated operations against high-profile Ukrainian entities and likely Polish targets, using spear-phishing to deliver two downloaders tracked as RustyClaw (RUST-based) and MeltingClaw (C++-based). These establish persistence for the backdoors DustyHammock and ShadyHammock, with ShadyHammock loading the SingleCamper RomCom variant, and the actor used PuTTY's Plink to tunnel to an internal edge device likely identified as a TP-LINK Wireless G Router WR340G.

What's compelling: Talos assesses the actor's intent as establishing long-term access to exfiltrate data for espionage and then potentially pivoting to ransomware, and the malware's keyboard-language checks indicate Polish entities were also in scope.

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Topics
Malware
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