UAC-0050's Expansion: European Financial Institution Targeted with RMS Malware
In February 2026, the Russia-aligned threat actor UAC-0050, also known as Mercenary Akula, targeted a European financial institution involved in regional development and reconstruction initiatives. The attack began with a spear-phishing email that spoofed a Ukrainian judicial domain, directing the recipient—a senior legal and policy advisor—to download a malicious archive file. This file initiated a multi-layered infection chain, ultimately deploying the Remote Manipulator System (RMS), a legitimate remote desktop software, granting the attackers persistent and stealthy access to the victim's system. This incident underscores a significant shift in UAC-0050's operations, expanding their focus beyond Ukraine to entities supporting the nation. The use of legitimate remote access tools like RMS highlights the evolving tactics of threat actors to evade detection. Organizations, especially those involved in sensitive geopolitical areas, must remain vigilant against such sophisticated social engineering attacks.
Kill Chain