THREAT_ACTOR · G1012
CURIUM
Also known as: CURIUM, Crimson Sandstorm, TA456, Tortoise Shell, Yellow Liderc
Profile
CURIUM is an Iranian threat group, first reported in September 2019 and active since at least July 2018, targeting IT service providers in the Middle East. CURIUM has since invested in building relationships with potential targets via social media over a period of months to establish trust and confidence before sending malware. Security researchers note CURIUM has demonstrated great patience and persistence by chatting with potential targets daily and sending benign files to help lower their security consciousness.
MITRE ATT&CK ↗Techniques
19 ATT&CK techniques attributed to this actor.
Software
1 malware/tools attributed to this actor.
Related corpus activity
9,696 indicators EXHIBIT techniques this actor uses. This is a shared-technique signal, not a first-party attribution to CURIUM.
| Indicator | Type | Family | Sev | Src |
|---|---|---|---|---|
| cve-2020-17456 | cve | — | 85 | 1 |
| cve-2025-34085 | cve | — | 85 | 1 |
| cve-2025-34054 | cve | — | 85 | 4 |
| cve-2021-4045 | cve | — | 85 | 1 |
| cve-2013-7471 | cve | — | 85 | 1 |
| cve-2025-12057 | cve | — | 85 | 1 |
| cve-2025-11837 | cve | — | 85 | 2 |
| cve-2016-15047 | cve | — | 85 | 4 |
| cve-2018-8007 | cve | — | 85 | 1 |
| cve-2023-44976 | cve | ransomware | 85 | 2 |
| cve-2025-2492 | cve | — | 85 | 2 |
| cve-2017-18377 | cve | — | 85 | 1 |
| cve-2026-1969 | cve | — | 85 | 1 |
| cve-2026-3844 | cve | — | 85 | 1 |
| cve-2021-27076 | cve | — | 85 | 1 |
| cve-2013-3307 | cve | — | 85 | 2 |
| cve-2016-5681 | cve | — | 85 | 2 |
| cve-2025-68670 | cve | — | 85 | 2 |
| cve-2024-1781 | cve | — | 85 | 1 |
| cve-2022-47945 | cve | — | 85 | 1 |
| cve-2014-2321 | cve | — | 85 | 1 |
| cve-2026-3102 | cve | — | 85 | 3 |
| cve-2020-22653 | cve | — | 85 | 2 |
| cve-2020-22658 | cve | — | 85 | 2 |
| cve-2025-34117 | cve | — | 85 | 1 |
| cve-2026-4368 | cve | ransomware | 85 | 1 |
| cve-2021-25646 | cve | — | 85 | 1 |
| cve-2021-29441 | cve | — | 85 | 1 |
| cve-2026-0740 | cve | — | 85 | 1 |
| cve-2025-7443 | cve | — | 85 | 1 |
Showing the top 30 by severity of 9,696.