Saint Bear
Also tracked as Storm-0587, TA471, UAC-0056, Lorec53
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.
- Documented techniques
- 18
- Assessed origin
- Russia
- Basis
- MITRE ATT&CK
How they break in
Techniques MITRE has documented this group using, grouped by the stage of an attack they belong to. This is the actionable half: each one is a behaviour you can look for in your own logs, and a control you can test.
reconnaissance1
resource development2
initial access1
execution7
defense impairment3
Malware
Families MITRE records this group deploying. Detection names for these are a reasonable place to start.