Saint Bear — APT Profile

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.

Also tracked as

Storm-0587, TA471, UAC-0056, Lorec53

Tools & malware

OutSteel Infostealer
Saint Bot Downloader

Vendor research

Cadet Blizzard emerges as a novel and distinct Russian threat actor Cadet Blizzard
Spear Phishing Attacks Target Organizations in Ukraine, Payloads Include the Document Stealer OutSteel and the Downloader SaintBot Palo Alto

Read the full analysis on IntelFusions