UNC4487

Also known as: UNC4487

UNC4487 is a threat actor that targeted Ukrainian government officials by compromising a Ukrainian auto insurance website essential for official travel. This attack facilitated the distribution of the MATANBUCHUS malware, which was used to monetize access to infected systems. Mandiant later identified additional malware samples, referred to as ChillyHell, linked to UNC4487 through the reuse of a code signing certificate associated with MATANBUCHUS. The group’s activities highlight a focus on exploiting critical infrastructure for financial gain.

Introduction

UNC4487 is a threat actor that targeted Ukrainian government officials by compromising a Ukrainian auto insurance website essential for official travel. This attack facilitated the distribution of the MATANBUCHUS malware, which was used to monetize access to infected systems. Mandiant later identified additional malware samples, referred to as ChillyHell, linked to UNC4487 through the reuse of a code signing certificate associated with MATANBUCHUS. The group’s activities highlight a focus on exploiting critical infrastructure for financial gain.

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

  • Xploit

Attribution and Evidence

Information pending cataloguing.

References

References pending cataloguing.