Saint Bear G1031

Também conhecido como: Storm-0587, TA471, UAC-0056, Lorec53

Atualizado na fonte em 31/07/2026 · Ver no MITRE ATT&CK

CVEs associadas

Técnicas

Malwares e ferramentas

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.

Vulnerabilidades exploradas

CVEs citadas pelo MITRE ATT&CK para este grupo, com o trecho da fonte. Fichas ainda não publicadas aqui aparecem sem link.

CVE-2017-11882 Alta · 7.8 KEV Ransomware Microsoft Office Memory Corruption Vulnerability

“Saint Bear has leveraged vulnerabilities in client applications such as CVE-2017-11882 in Microsoft Office to enable code execution in victim environments.”