Ransomware Research
CryptoMix-Test Ransomware
CryptoMix-Test is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on November 1, 2017, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- CryptoMix-Test
- First Seen
- November 1, 2017
How CryptoMix-Test Ransomware Works
Targeted Files
Encrypts filenames -> magic.mgc -> 4649E8C83CE3F40CE32AE1DA3F59D83C.TEST
File Encryption Patterns
CryptoMix-Test modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..TESTRansom Note and Payment Demands
After encrypting files, CryptoMix-Test displays ransom notes demanding payment for file recovery:
_HELP_INSTRUCTION.TXTRansom message:
notes/_HELP_INSTRUCTION.TXT
Note locations:
EveryFolderTechnical Indicators
Associated Executable Files
The following executable files are associated with CryptoMix-Test ransomware:
FrtanFrtan.exeBCC4F26321.EXE
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About This Analysis
This CryptoMix-Test 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 CryptoMix-Test.
Last updated: July 30, 2025