Tactics, Techniques & Procedures (TTPs): Specializes in AI-augmented social engineering, polymorphic malware generation, and targeting of critical infrastructure in Eastern Europe. Utilizes public LLMs (ChatGPT, Gemini) to bypass traditional security filters.

GreyVibe represents the vanguard of a new generation of threat actors that treat AI not as a gimmick, but as a core operational pillar. Their ability to rapidly iterate on lures and payloads using LLMs allows them to maintain a high operational tempo while minimizing the footprint of their activity. This actor is likely state-aligned, given their focus on Ukrainian strategic targets and the sophistication of their custom toolset.