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Ransomware Research
CryBrazil Ransomware
CryBrazil is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on May 1, 2018, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- CryBrazil
- First Seen
- May 1, 2018
How CryBrazil Ransomware Works
File Encryption Patterns
CryBrazil modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..crybrazil
..hacked
Ransom Note and Payment Demands
After encrypting files, CryBrazil displays ransom notes demanding payment for file recovery:
SUA_CHAVE.html
Ransom message:
notes/SUA_CHAVE.html
Note locations:
Desktop
Ransom message:
notes/ranso4.jpg
Note locations:
Desktop
Technical Indicators
Associated Executable Files
The following executable files are associated with CryBrazil ransomware:
NaoLeia.exe
myfile.exe
crybrazil.exe
CryBrazil.exe
1.exe
Elastio Can Help You
Don't let CryBrazil ransomware take over your data
Elastio provides advanced ransomware protection and recovery solutions to keep your organization safe.
About This Analysis
This CryBrazil ransomware analysis is part of Elastio's comprehensive ransomware detection database. Elastio provides advanced ransomware protection and recovery solutions, helping organizations defend against and recover from ransomware attacks like CryBrazil.
Last updated: July 30, 2025