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.
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.
| Indicator | Type | Family | Sev | Src |
|---|---|---|---|---|
| cve-2026-3102 | cve | — | 85 | 3 |
| cve-2026-1969 | cve | — | 85 | 1 |
| cve-2013-3307 | cve | — | 85 | 2 |
| cve-2014-2321 | cve | — | 85 | 1 |
| cve-2025-34117 | cve | — | 85 | 1 |
| cve-2021-29441 | cve | — | 85 | 1 |
| cve-2025-66478 | cve | — | 85 | 2 |
| cve-2021-27076 | cve | — | 85 | 1 |
| cve-2016-15047 | cve | — | 85 | 4 |
| cve-2018-8007 | cve | — | 85 | 1 |
| cve-2020-17456 | cve | — | 85 | 1 |
| cve-2025-2492 | cve | — | 85 | 2 |
| cve-2013-7471 | cve | — | 85 | 1 |
| cve-2021-25646 | cve | — | 85 | 1 |
| cve-2022-47945 | cve | — | 85 | 1 |
| cve-2016-5681 | cve | — | 85 | 2 |
| cve-2025-0921 | cve | — | 85 | 2 |
| cve-2026-22584 | cve | — | 85 | 2 |
| cve-2025-11837 | cve | — | 85 | 2 |
| cve-2025-68670 | cve | — | 85 | 2 |
| cve-2025-34054 | cve | — | 85 | 4 |
| cve-2024-1781 | cve | — | 85 | 1 |
| cve-2023-44976 | cve | ransomware | 85 | 2 |
| cve-2021-4045 | cve | — | 85 | 1 |
| cve-2020-22653 | cve | — | 85 | 2 |
| cve-2020-22658 | cve | — | 85 | 2 |
| cve-2026-4368 | cve | ransomware | 85 | 1 |
| cve-2017-18377 | cve | — | 85 | 1 |
| cve-2025-23304 | cve | — | 85 | 2 |
| cve-2026-0740 | cve | — | 85 | 1 |
Showing the top 30 by severity of 9,544.