Description Summary
In September The El Dorado ransomware group have been rebrand as BlackLock
Threat Actor
El Dorado — rebranded to BlackLock; same lineage/codebase.
Technical Indicators
Encryption Extension
Not publicly reported
Encryption Algorithm
ChaCha20 + RSA-OAEP (Golang)
Ransom Note Name
Not publicly reported
Targeted Industries
Cross-sector (per leak-site victim telemetry)
First Seen
2024
Last Seen
Rebranded to BlackLock (~September 2024)
Geographical Location
Global / not publicly profiled
MITRE ATT&CK Matrix
| Tactic | TTP | Technique Name |
|---|---|---|
| Impact x 2 | T1486 | Data Encrypted for Impact |
| T1490 | Inhibit System Recovery | |
| Exfiltration x 1 | T1567 | Exfiltration Over Web Service (leak site) |
| Initial Access x 2 | T1190 | Exploit Public-Facing Application |
| T1078 | Valid Accounts |