Ransomware Research
GandCrab-3 Ransomware
GandCrab-3 is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on April 1, 2018, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- GandCrab-3
- First Seen
- April 1, 2018
How GandCrab-3 Ransomware Works
Targeted Files
https://www.bleepingcomputer.com/forums/t/669484/gandcrab-ransomware-help-support-topic-gdcb-crab-crab-decrypttxt/page-10#entry4461636 https://app.any.run/tasks/57bf8f42-3364-4ec6-9faa-c8d48b5c8941/ Requires C&C for key exchange
File Encryption Patterns
GandCrab-3 modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..CRABRansom Note and Payment Demands
After encrypting files, GandCrab-3 displays ransom notes demanding payment for file recovery:
CRAB-DECRYPT.txtRansom message:
notes/CRAB-DECRYPT.txt
Note locations:
EveryFolderTechnical Indicators
Associated Executable Files
The following executable files are associated with GandCrab-3 ransomware:
jin.exe1.pdf(4).exemyfile.exeupdate.phpresume.js.binGandCrab3.docdhl_invoice_18553.docresume.js
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About This Analysis
This GandCrab-3 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 GandCrab-3.
Last updated: July 30, 2025