Ransomware Research
Bisamware Ransomware
Bisamware is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on September 1, 2022, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- Bisamware
- First Seen
- September 1, 2022
How Bisamware Ransomware Works
Targeted Files
https://www.hybrid-analysis.com/sample/26ed1ffe74abd8a5f62d4f3b341a62ebb1a04d43e7ab9d64b9d283e184b35fd4/6322a001e5f9bf04c872b8d8 Requires C&C (TOR communication)
File Encryption Patterns
Bisamware modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..BISAMWARERansom Note and Payment Demands
After encrypting files, Bisamware displays ransom notes demanding payment for file recovery:
SYSTEM=RANSOMWARE=INFECTED.TXTRansom message:
notes/SYSTEM=RANSOMWARE=INFECTED.TXT
Technical Indicators
Associated Executable Files
The following executable files are associated with Bisamware ransomware:
Bewerbung.docxLukas_Frankenhauser_Bewerbung.docxBisamware.dllputty.binBISAMWAREPrisma.win_PATCHED.exeputty.exe
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About This Analysis
This Bisamware 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 Bisamware.
Last updated: July 30, 2025