Callisto
No sourced public emblem in this profile.
reference profile · reported nexus: RU (not nationality)
The Callisto Group is an advanced threat actor whose known targets include military personnel, government officials, think tanks, and journalists in Europe and the South Caucasus. Their primary interest appears to be gathering intelligence related to foreign and security policy in the Eastern Europe and South Caucasus regions.
Source-reported aliases: COLDRIVER, SEABORGIUM, TA446, GOSSAMER BEAR, BlueCharlie, Star Blizzard, TAG-53, IRON FRONTIER, UNC4057, Blue Callisto, COLD RELIC. Associations do not prove equivalence.
Target geography
Catalog-listed countries (associations, not attack counts): No country-level metadata
No bound claim-post feed for this label.
Historical casebook
No dated record curated yet; absence does not establish inactivity.
Planned Kinwilder coverage
Tentative editorial review windows, contingent on evidence and review; not promised publication dates or predictions of attacks.
No assigned review window.
References
https://blog.google/threat-analysis-group/tracking-cyber-activity-eastern-europe
https://blog.google/threat-analysis-group/update-on-cyber-activity-in-eastern-europe
https://blog.google/threat-analysis-group/continued-cyber-activity-in-eastern-europe-observed-by-tag
https://blog.sekoia.io/calisto-continues-its-credential-harvesting-campaign
https://services.google.com/fh/files/blogs/google_fog_of_war_research_report.pdf
https://go.recordedfuture.com/hubfs/reports/cta-2022-1205.pdf
https://cloud.google.com/blog/topics/threat-intelligence/cyber-threats-global-elections
https://cloud.google.com/blog/topics/threat-intelligence/cyber-threats-2024-paris-olympics
https://blog.google/threat-analysis-group/google-tag-coldriver-russian-phishing-malware