Ransomware Research

Sadogo Ransomware

Sadogo 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.

Quick Facts

Ransomware Family
Sadogo
First Seen
April 1, 2020

How Sadogo Ransomware Works

Targeted Files

Encrypts first 0x19000 bytes

File Encryption Patterns

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

File extensions added after encryption:

..encrypted..makop

Ransom Note and Payment Demands

After encrypting files, Sadogo 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:

Desktop

Technical Indicators

Associated Executable Files

The following executable files are associated with Sadogo ransomware:

  • soft.exe
  • tor.exe
  • da65ca3e..exe
  • tor[1].exe
  • 440.exe

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About This Analysis

This Sadogo 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 Sadogo.

Last updated: July 30, 2025

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What is Sadogo Ransomware? | Elastio