FORENSIA

THREAT_ACTOR · G1021

Cinnamon Tempest

Also known as: Cinnamon Tempest, DEV-0401, Emperor Dragonfly, BRONZE STARLIGHT

Profile

Cinnamon Tempest is a China-based threat group that has been active since at least 2021 deploying multiple strains of ransomware based on the leaked Babuk source code. Cinnamon Tempest does not operate their ransomware on an affiliate model or purchase access but appears to act independently in all stages of the attack lifecycle. Based on victimology, the short lifespan of each ransomware variant, and use of malware attributed to government-sponsored threat groups, Cinnamon Tempest may be motivated by intellectual property theft or cyberespionage rather than financial gain.

MITRE ATT&CK ↗

Techniques

19 ATT&CK techniques attributed to this actor.

Software

8 malware/tools attributed to this actor.

PlugXCobalt StrikeImpacketSliverPandoraRcloneCheerscryptHUI Loader

Related corpus activity

9,544 indicators EXHIBIT techniques this actor uses. This is a shared-technique signal, not a first-party attribution to Cinnamon Tempest.

IndicatorTypeFamilySevSrc
cve-2026-3102cve853
cve-2026-1969cve851
cve-2013-3307cve852
cve-2014-2321cve851
cve-2025-34117cve851
cve-2021-29441cve851
cve-2025-66478cve852
cve-2021-27076cve851
cve-2016-15047cve854
cve-2018-8007cve851
cve-2020-17456cve851
cve-2025-2492cve852
cve-2013-7471cve851
cve-2021-25646cve851
cve-2022-47945cve851
cve-2016-5681cve852
cve-2025-0921cve852
cve-2026-22584cve852
cve-2025-11837cve852
cve-2025-68670cve852
cve-2025-34054cve854
cve-2024-1781cve851
cve-2023-44976cveransomware852
cve-2021-4045cve851
cve-2020-22653cve852
cve-2020-22658cve852
cve-2026-4368cveransomware851
cve-2017-18377cve851
cve-2025-23304cve852
cve-2026-0740cve851

Showing the top 30 by severity of 9,544.