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.
- Known attack methods
- 18
- Origin
- Russia
- Source
- MITRE ATT&CK
How they break in
Techniques MITRE has documented this group using, mapped onto the ATT&CK matrix. Each one is a behaviour you can look for in your own logs, and a control you can test.
Reconnaissance
12 techniques · 1 used
Resource Development
9 techniques · 2 used
Initial Access
11 techniques · 1 used
Execution
20 techniques · 3 used
Persistence
22 techniques
Privilege Escalation
13 techniques
Stealth
30 techniques · 3 used
Defense Impairment
18 techniques · 3 used
Credential Access
17 techniques
Discovery
34 techniques
Lateral Movement
9 techniques
Collection
17 techniques
Command and Control
18 techniques
Exfiltration
9 techniques
Impact
15 techniques
Reconnaissance1
Resource development2
Initial access1
Execution7
Stealth4
Defense impairment3
Malware
Families MITRE records this group deploying. Detection names for these are a reasonable place to start.