Ransomware Research
CATAKA Ransomware
CATAKA is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on October 1, 2023, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- CATAKA
- First Seen
- October 1, 2023
How CATAKA Ransomware Works
File Encryption Patterns
CATAKA modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
./\.[a-zA-Z0-9]{5}/
Ransom Note and Payment Demands
After encrypting files, CATAKA displays ransom notes demanding payment for file recovery:
Readme.txt
Ransom message:
notes/Readme.txt
Note locations:
EveryFolder
Ransom message:
notes/X7GGoAPFJ.jpg
Note locations:
Desktop
Technical Indicators
Associated Executable Files
The following executable files are associated with CATAKA ransomware:
clip.exe
jadwal_payload.exe
rundll32.exe
Elastio Can Help You
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About This Analysis
This CATAKA 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 CATAKA.
Last updated: July 30, 2025