Ransomware Research
Chimera Ransomware
Chimera is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on September 1, 2015, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- Chimera
- First Seen
- September 1, 2015
How Chimera Ransomware Works
File Encryption Patterns
Chimera modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..crypt./\.[a-zA-Z]{4}\b/Ransom Note and Payment Demands
After encrypting files, Chimera displays ransom notes demanding payment for file recovery:
YOUR_FILES_ARE_ENCRYPTED.HTMLRansom message:
notes/YOUR_FILES_ARE_ENCRYPTED.HTML
Note locations:
EveryFolderTechnical Indicators
Associated Executable Files
The following executable files are associated with Chimera ransomware:
HawkEye.exe08734899.exeHAWKEYE.EXEmuestra14.binSample.exe10.exeTrojan.Ransom.Chimera.exeTrojan.Ransom.ChimeraChimera.exe653.jsonchimera.exeCHIMERAsetup.exeSetup.exeshrpubw.exe
Elastio Can Help You
Don't let Chimera ransomware take over your data
Elastio provides advanced ransomware protection and recovery solutions to keep your organization safe.
About This Analysis
This Chimera 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 Chimera.
Last updated: July 30, 2025