Ransomware group profile · #269 by claimed victims
Blackshadow ransomware
BlackShadow is an Iranian-linked hack-and-leak group (linked to the Agrius APT) that targeted Israeli companies including insurance firm Shirbit and hosting provider Cyberserve, leaking medical records of 290,000 patients, using extortion as a tool of geopolitical disruption rather than purely for financial gain.
Victimology
Who Blackshadow claims to have breached, from 3 leak-site posts recorded by VULONE.
Claims per month last 12 months
Top sectors
Top countries
Latest claimed victims 3 most recent
| Victim | Sector | Country | Claimed |
|---|---|---|---|
| Shirbit Insurance Company | Financial Services | — | 18 Dec 2021 |
| K.L.S Capital k.l.s capital | Financial Services | — | 18 Dec 2021 |
| CyberServe Company | Technology | — | 18 Dec 2021 |
All 3 Blackshadow victims, searchable
Full victim list with claim posts, domains, timing and exports, plus the negotiation chats and leak-site screenshots VULONE archives for this crew.
Tactics, techniques and procedures
ATT&CK technique mapping for Blackshadow is in progress. Victimology, infrastructure status and leak-site tracking are live above.
Indicators, detections and the full playbook
Hashes, C2 addresses, onion services, Sigma and YARA detections per technique, and the negotiation transcripts are available to signed-in analysts.
Frequently asked
Is Blackshadow ransomware still active?
How many victims has Blackshadow claimed?
Which industries does Blackshadow target?
Which countries are most affected by Blackshadow?
Where does VULONE get Blackshadow victim data?
Other ransomware groups
Qilin
Lockbit3
Akira
ClopVictim claims are collected from leak sites and enrichment partners (ransomware.live, RansomLook) and represent the group's own assertions, not confirmed breaches. Profile last updated 16 September 2026. Questions or corrections: [email protected].
