Ransomware Research

CutDry Ransomware

CutDry is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on November 1, 2021, this ransomware has been actively targeting systems worldwide.

Quick Facts

Ransomware Family
CutDry
First Seen
November 1, 2021

How CutDry Ransomware Works

File Encryption Patterns

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

File extensions added after encryption:

./\.[0-9a-z]{4}$/

Ransom Note and Payment Demands

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

fileread_me!.txt

Ransom message:

notes/read_me!.txt

Note locations:

EveryFolder
screenshot

Ransom message:

notes/7tut29d3d.png

Note locations:

Desktop

Technical Indicators

Associated Executable Files

The following executable files are associated with CutDry ransomware:

  • DiscordNitroGenerator.exe
  • fileName.exe
  • Discord Nitro Generator.exe
  • Windows Defender.exe

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About This Analysis

This CutDry 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 CutDry.

Last updated: October 30, 2025

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