Ransomware Research

Paymen45 Ransomware

Paymen45 is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on May 1, 2020, this ransomware has been actively targeting systems worldwide.

Quick Facts

Ransomware Family
Paymen45
First Seen
May 1, 2020

How Paymen45 Ransomware Works

Targeted Files

Encrypts some parts (blocks) of the files

File Encryption Patterns

Paymen45 modifies encrypted files using specific patterns to mark them as encrypted:

File extensions added after encryption:

./\.[A-Za-z0-9]{10,12}$/..encrypted..corona..notron

Ransom Note and Payment Demands

After encrypting files, Paymen45 displays ransom notes demanding payment for file recovery:

filereadme.txt

Ransom message:

notes/readme.txt

Note locations:

EveryFolder
filereadme-warning.txt

Ransom message:

notes/readme-warning.txt

Note locations:

EveryFolder

Technical Indicators

Associated Executable Files

The following executable files are associated with Paymen45 ransomware:

  • lok.exe
  • Z9O603AH.exe
  • opboohpueclon.exe
  • WJOM54W6.exe

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About This Analysis

This Paymen45 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 Paymen45.

Last updated: July 30, 2025

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