Ransomware Research
Penta Ransomware
Penta is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on August 1, 2021, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- Penta
- First Seen
- August 1, 2021
How Penta Ransomware Works
File Encryption Patterns
Penta modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..PENTA
Ransom Note and Payment Demands
After encrypting files, Penta displays ransom notes demanding payment for file recovery:
PENTA_README.txt
Ransom message:
notes/PENTA_README.txt
Note locations:
EveryFolder
Ransom message:
notes/tse4egsas.png
Note locations:
Desktop
Technical Indicators
Associated Executable Files
The following executable files are associated with Penta ransomware:
PENTA.exe
PENTA_RANSOMWARE.exe
penta.exe
aaa.exe
hi.exe
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About This Analysis
This Penta 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 Penta.
Last updated: July 30, 2025