Ransomware Research

TomNom Ransomware

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

Quick Facts

Ransomware Family
TomNom
First Seen
June 1, 2020

How TomNom Ransomware Works

Targeted Files

b86822b9a8982b84973a2fba76e502fd2b80189a636df117283207f025a59c5e -> not working

File Encryption Patterns

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

File extensions added after encryption:

..jsus..ment

Ransom Note and Payment Demands

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

fileTemp-HOW-TO-DECRYPT.txt

Ransom message:

notes/Desktop-HOW-TO-DECRYPT.txt

Note locations:

LocalApplicationData
fileDesktop-HOW-TO-DECRYPT.txt

Ransom message:

notes/Desktop-HOW-TO-DECRYPT.txt

Note locations:

Desktop
filescan-HOW-TO-DECRYPT.txt

Ransom message:

notes/Desktop-HOW-TO-DECRYPT.txt

Technical Indicators

Associated Executable Files

The following executable files are associated with TomNom ransomware:

  • pubg_hack.exe

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About This Analysis

This TomNom 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 TomNom.

Last updated: July 30, 2025

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