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CyberRussia

Saint Bear

Suspected state-linked cyber threat groupTrackedPending verification

Also known as: Storm-0587, TA471, UAC-0056, Lorec53

CyberRUS
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Fact cardConfidence · Source
System
TypeSuspected state-linked cyber threat group
Alternative designationsStorm-0587, TA471, UAC-0056, Lorec53
ProliferationOrigin country only
Active since2021At least 2021Med[1]
MITRE ATT&CK IDG1031High[1]
Capabilities
ATT&CK techniques used18ATT&CK v20.1High[1]
Malware and toolsOutSteel, Saint Bot2 malware and tool entries linked in ATT&CKHigh[1]
Attribution and activity
Attributed sponsorRussian-nexusMed[1]
TargetsSaint Bear is a Russian-nexus threat actor active since early 2021, primarily targeting entities in Ukraine and Georgia.Med[1]
Notes
Saint Bear is a Russian-nexus threat actor active since early 2021, primarily targeting entities in Ukraine and Georgia. The group is notable for a specific remote access tool, Saint Bot, and information stealer, OutSteel in campaigns. Saint Bear typically relies on phishing or web staging of malicious documents and related file types for initial access, spoofing government or related entities. Saint Bear has previously been confused with Ember Bear operations, but analysis of behaviors, tools, and targeting indicates these are distinct clusters. Description adapted from MITRE ATT&CK®, © The MITRE Corporation, used under the ATT&CK Terms of Use.
Summary

Saint Bear is a Russian-nexus threat actor active since early 2021, primarily targeting entities in Ukraine and Georgia. The group is notable for a specific remote access tool, Saint Bot, and information stealer, OutSteel in campaigns.

Draft entry. Values come from the cited public sources and are awaiting editor verification.
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Operators
Russia
Sources
  1. Saint Bear, Group G1031, MITRE ATT&CK
    Published/updated 2026-07-31 · Tier 2 · checked 2026-11-08
Change log
  • 2026-11-08 Entry created from MITRE ATT&CK Enterprise v20.1 (group G1031)