APT / THREAT GROUP

GrimPlant

aliases

Last seen:Mar 17, 2026

Intelligence Profile

This malware was seen during the cyberattacks on Ukrainian state organizations. It is one of two used backdoors written in Go and attributed to UAC-0056 (SaintBear, UNC2589, TA471).

Threat Analysis

GrimPlant is a known-sophistication threat actor of undetermined national origin, engaged in cyber operations with a primary motivation of unknown activity patterns.

External References

→https://blog.malwarebytes.com/threat-intelligence/2022/04/new-uac-0056-activity-theres-a-go-elephant-in-the-room/

→https://businessinsights.bitdefender.com/deep-dive-into-the-elephant-framework-a-new-cyber-threat-in-ukraine

→https://cert.gov.ua/article/38374

→https://cip.gov.ua/en/news/khto-stoyit-za-kiberatakami-na-ukrayinsku-kritichnu-informaciinu-infrastrukturu-statistika-15-22-bereznya

→https://inquest.net/blog/2022/04/07/ukraine-cyberwar-overview

Quick Facts

TypeAPT / Threat Group

Aliases2

Also Known As

win.grimplantGrimPlant

External Intelligence

Malpedia: win.grimplant

Research Links

MITRE ATT&CK VirusTotal Google (news) Twitter/X search

Data sourced from Malpedia, Ransomware.live, RansomLook, and CTIWATCH OSINT collection. Actor attribution is based on available intelligence and may be incomplete.

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