Overview
Crypto24 is a double-extortion ransomware-as-a-service group that surfaced on the RAMP forum in mid-2024, targeting large organizations in financial services, healthcare, manufacturing, and technology across Asia, Europe, and North America, with notable victims including CMC Group, Vietnam's second-largest ICT conglomerate.
- First tracked: 2025-04-08
- Discussed in our reports: Qatar
Geography: origin and targets
No public attribution of origin. Lines are drawn only where public reporting places the operators; flags show where the group has claimed victims, sized by number of claims.
United States of America8
Singapore4
Indonesia3
Malaysia3
Argentina2
India2
Egypt2
Italy2
Vietnam2
Germany2
Exploited vulnerabilities
None recorded in the sources we reviewed.
ATT&CK techniques
None recorded in the sources we reviewed.
Tools
None recorded in the sources we reviewed.
Leak-site infrastructure
| Title | Type | Address (defanged) | Seen online at snapshot |
|---|---|---|---|
| CRYPTO24 | Data Leak Site | DLS | j5o5y2feotmhvr7cbcp2j2ewayv5mn5zenl3joqwx67gtfchhezjznad[.]onion | Yes |
Sources and caveats
Group descriptions, ATT&CK mappings, tools and leak-site locations come from public ransomware tracking projects, including ransomware.live and Crocodyli. Exploited vulnerabilities come from the Ransomware-Vulnerability-Matrix by BushidoUK (licensed CC BY 4.0), supplemented where a group profile there is newer than the data we hold. Each CVE links to its original research source. Technical text is shown in English as published. Leak-site addresses are defanged and shown for blocking and detection; do not visit them. Nothing here is verified by ClairSec_ against a specific incident.
Data snapshot: 2026-10-11