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RansomwareIdeologyAdvanced sophistication · State-backed

Blackshadow

Blackshadow is an Iran-attributed ransomware group with an ideological motive, tracked by Brandefense. It targets 12 sectors, including Government and Technology, in 14 countries, including the United States and India. It uses 60 MITRE ATT&CK techniques and exploits 7 known CVEs.

Also known as
  • Pink Sandstorm
  • AMERICIUM
  • Agonizing Serpens
  • DEV-0227
  • SharpBoys
  • Spectral Kitten
Origin
Iran
Techniques
60
Exploited CVEs
7
First seen
Jan 1, 2020
Last seen
Nov 6, 2023
Record updated

Who They Target.

Labelsmenaransomware

About Blackshadow.

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.

Last updated Oct 1, 2026. Compiled by Brandefense technologies from structured threat intelligence and reviewed by Brandefense analysts. Techniques follow the MITRE ATT&CK framework.