216.73.217.172

Cinnamon Tempest

· Published 16/12/2025 19:39 · Modified 27/03/2026 01:13 · Source: The MITRE Corporation

Essential information

Confidence
100/100
Published
16/12/2025 19:39
Modified
27/03/2026 01:13
Updated at
27/03/2026 01:13
Revoked
No
Author / Source
The MITRE Corporation
Resource level
—
Primary motivation
—
Related entities
41 attack patterns (mitre), 16 malware, 4 sectors, 1 countries, 28 indicators, 2 vulnerabilities (cve), 3 tool

Aliases

DEV-0401 Emperor Dragonfly BRONZE STARLIGHT

Description

[Cinnamon Tempest](https://attack.mitre.org/groups/G1021) is a China-based threat group that has been active since at least 2021 deploying multiple strains of ransomware based on the leaked [Babuk](https://attack.mitre.org/software/S0638) source code. [Cinnamon Tempest](https://attack.mitre.org/groups/G1021) 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](https://attack.mitre.org/groups/G1021) may be motivated by intellectual property theft or cyberespionage rather than financial gain.(Citation: Microsoft Ransomware as a Service)(Citation: Microsoft Threat Actor Naming July 2023)(Citation: Trend Micro Cheerscrypt May 2022)(Citation: SecureWorks BRONZE STARLIGHT Ransomware Operations June 2022)

Marking (TLP)

TLP:CLEAR Copyright 2015-2025, The MITRE Corporation. MITRE ATT&CK and ATT&CK are registered trademarks of The MITRE Corporation.

External references

Related entities

Attack patterns, malware, vulnerabilities, indicators and other entities linked to this intrusion set.