Ransomware Research

WannaRen Ransomware

WannaRen is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on April 1, 2020, this ransomware has been actively targeting systems worldwide. Security researchers also track this malware under the aliases: WannaMine.

Quick Facts

Ransomware Family
WannaRen
First Seen
April 1, 2020
Known Aliases
WannaMine

How WannaRen Ransomware Works

Targeted Files

x86 dll, protected with VMProtect

File Encryption Patterns

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

File extensions added after encryption:

..WannaRen

Ransom Note and Payment Demands

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

message

Ransom message:

notes/note.txt
file想解密请看此文本.txt

Ransom message:

notes/想解密请看此文本.txt

Note locations:

EveryFolder
file想解密请看此文本.gif

Ransom message:

notes/想解密请看此文本.gif

Note locations:

EveryFolder

Technical Indicators

Associated Executable Files

The following executable files are associated with WannaRen ransomware:

  • @WannaRen@.exe
  • es.exe
  • wwlib.dll
  • wwlib.bin

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About This Analysis

This WannaRen 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 WannaRen.

Last updated: July 30, 2025