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CloudAtlas, also tracked as Blue Odin, is a cyber espionage threat actor known for targeting organizations in Russia and in Russia-annexed regions of Ukraine. The group is associated with document-based intrusion activity in which malicious documents are used to initiate compromise and deliver carefully selected follow-on payloads. Reporting also links the actor to SMB forced-authentication tradecraft, indicating use of credential-harvesting or access-enablement techniques during early intrusion stages. CloudAtlas is characterized by tightly controlled payload delivery and selective targeting, consistent with an espionage-oriented operational model rather than broad financially motivated crime. High-confidence reporting supports its focus on organizations in Russian and occupied Ukrainian environments, but does not provide sufficient corroborated detail here to attribute the actor to a specific state or country of origin.
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Who, where, and (when attributed) which flag flies behind the operation. Pulled from open-source reporting and Mallory's analyst review.
Geographies tied to known operations.
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Every observed MITRE ATT&CK technique, grouped by tactic.
Families this actor is known to deploy, with IOCs and behavior.
CVEs this actor has used in known campaigns.
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