Star Blizzard

Origin🇷🇺 Rússia

Techniques (MITRE ATT&CK)20

SourceMITRE ATT&CK

Also known as:Blue CallistoBlueCharlieCOLD RELICCOLDRIVERCallisto GroupGOSSAMER BEARIRON FRONTIERSEABORGIUMTA446TAG-53UNC4057

About the group

Star Blizzard is a cyber espionage and influence group originating in Russia that has been active since at least 2019. Star Blizzard campaigns align closely with Russian state interests and have included persistent phishing and credential theft against academic, defense, government, NGO, and think tank organizations in NATO countries, particularly the US and the UK.

Attack chain

Plausible scenario built from the group's real techniques, ordered by the phases of an attack. Each step shows how the group typically operates.

Arsenal severity31

Impact: High

Illustrative chain derived from techniques documented in MITRE ATT&CK — it does not represent a specific past attack. Severity summarizes the known arsenal (kill-chain coverage, actively exploited CVEs, techniques).

Techniques (MITRE ATT&CK) 20

How the group operates, mapped to the MITRE ATT&CK matrix and organized by the phases of an attack.

Reconnaissance

Gather Victim Identity Information Search Open Websites/Domains Spearphishing Attachment Spearphishing Link

Resource development

Acquire Infrastructure Domains Social Media Accounts Email Accounts Email Accounts Tool Upload Malware

Initial access

Spearphishing Attachment

Execution

JavaScript Malicious File

Credential access

Steal Web Session Cookie

Lateral movement

Web Session Cookie

Collection

Remote Email Collection Email Forwarding Rule

stealth

Valid Accounts Impersonation

Exploited vulnerabilities

No CVEs attributed to this group in public sources (MITRE ATT&CK). Absence of attribution does not mean absence of activity.

References

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