Ransomware Research

CryptoDark Ransomware

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

Quick Facts

Ransomware Family
CryptoDark
First Seen
June 1, 2017

How CryptoDark Ransomware Works

Targeted Files

Fake

Ransom Note and Payment Demands

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

screenshot

Ransom message:

notes/CRYPTODARKBACKGROUND.BMP

Note locations:

Desktop
message

Ransom message:

notes/note.txt

Note locations:

OnceOnCompletion

Technical Indicators

Associated Executable Files

The following executable files are associated with CryptoDark ransomware:

  • CryptoDark Decryptor.exe

Elastio Can Help You

Don't let CryptoDark ransomware take over your data

Elastio provides advanced ransomware protection and recovery solutions to keep your organization safe.

About This Analysis

This CryptoDark 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 CryptoDark.

Last updated: July 30, 2025