UAC-0241

Also known as: UAC-0241

UAC-0241 is a threat actor tracked by CERT-UA, active from May to November 2025, targeting educational institutions and government bodies in eastern Ukraine via spear-phishing emails from compromised Gmail accounts. These emails deliver password-protected ZIP archives with malicious LNK files that trigger an HTA → JavaScript → PowerShell chain, deploying credential harvester LaZagne, file-stealer scripts, and the Go-based GAMYBEAR backdoor for command execution, data exfiltration over HTTP, and persistence via registry Run keys. Initial access stemmed from a May 26 phishing spoofing a local emergency agency, with compromised systems exploited for lateral movement.

Introduction

UAC-0241 is a threat actor tracked by CERT-UA, active from May to November 2025, targeting educational institutions and government bodies in eastern Ukraine via spear-phishing emails from compromised Gmail accounts. These emails deliver password-protected ZIP archives with malicious LNK files that trigger an HTA → JavaScript → PowerShell chain, deploying credential harvester LaZagne, file-stealer scripts, and the Go-based GAMYBEAR backdoor for command execution, data exfiltration over HTTP, and persistence via registry Run keys. Initial access stemmed from a May 26 phishing spoofing a local emergency agency, with compromised systems exploited for lateral movement.

Activities and Tactics

Information pending cataloguing.

Notable Campaigns

Information pending cataloguing.

Tactics, Techniques, and Procedures (TTPs)

Information pending cataloguing.

Notable Indicators of Compromise (IOCs)

No curated IOCs are currently published for this actor. This section will be updated when stable, attributable indicators are available.

Malware and Tools

  • Backdoor.Oldrea
  • PowerDuke
  • POWERSTATS
  • Power Loader
  • POWERSOURCE
  • Xploit
  • PowerRAT

Attribution and Evidence

Information pending cataloguing.

References

References pending cataloguing.