Ransomware Research

Sage Ransomware

Sage is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on December 1, 2016, this ransomware has been actively targeting systems worldwide.

Quick Facts

Ransomware Family
Sage
First Seen
December 1, 2016

How Sage Ransomware Works

Targeted Files

Requires C&C

File Encryption Patterns

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

File extensions added after encryption:

..sage

Ransom Note and Payment Demands

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

file/!Recovery_[a-z0-9]{6}\.html/

Ransom message:

notes/!Recovery_byg2uc.html

Note locations:

RootDiscsDesktop
file/!Recovery_[a-z0-9]{6}\.txt/

Ransom message:

notes/!Recovery_byg2uc.txt

Note locations:

RootDiscsDesktop

Technical Indicators

Associated Executable Files

The following executable files are associated with Sage ransomware:

  • 6TXnl4hO.exe
  • bb1jdjgz.exe
  • Sage 2.exe
  • Sage 2..exe

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About This Analysis

This Sage 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 Sage.

Last updated: July 30, 2025

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