Overview
BlackShrantac is a ransomware group that emerged in late 2025, targeting organizations in manufacturing, financial services, technology, and the public sector globally, employing double-extortion combined with living-off-the-land techniques to weaponize legitimate tools and disable defenses before encrypting files.
- First tracked: 2025-09-17
- Discussed in our reports: Egypt
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.
Türkiye6
United Kingdom1
Bulgaria1
Qatar1
Egypt1
United Arab Emirates1
Senegal1
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 |
|---|---|---|---|
| BlackShrantac | DLS | b2ykcy2gcug4gnccm6hnrb5xapnresmyjjqgvhafaypppwgo4feixwyd[.]onion | No |
| Black Shrantac | DLS | jvkpexgkuaw5toiph7fbgucycvnafaqmfvakymfh5pdxepvahw3xryqd[.]onion | No |
| BlackShrantac | DLS | shrantacpxim7z6m6pnszi52bb2tp23sntby3hklt36rezdja7bdjsyd[.]onion | No |
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: 2026-10-17