Ransomware Research

CryptoSweetTooth Ransomware

CryptoSweetTooth is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on January 1, 2017, this ransomware has been actively targeting systems worldwide.

Quick Facts

Ransomware Family
CryptoSweetTooth
First Seen
January 1, 2017

How CryptoSweetTooth Ransomware Works

Targeted Files

Doesn't encrypt %SYSTEMDRIVE% RECUPERAR_ARCHIVOS.html stored in Pictures, Documents

File Encryption Patterns

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

File extensions added after encryption:

..locked

Ransom Note and Payment Demands

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

file/^IMPORTANTE_LEER([0-9]{1})?\.html$/

Ransom message:

notes/IMPORTANTE_LEER.html

Note locations:

Desktop
fileRECUPERAR_ARCHIVOS.html

Ransom message:

notes/RECUPERAR_ARCHIVOS.html

Note locations:

UserFolders

Technical Indicators

Associated Executable Files

The following executable files are associated with CryptoSweetTooth ransomware:

  • Bitcoin.exe
  • bitcoin_factory_v1.0.2.exe
  • CryptoSweetTooth.exe
  • videohot_barbie.wmv.exe

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About This Analysis

This CryptoSweetTooth 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 CryptoSweetTooth.

Last updated: July 30, 2025

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