Ransomware Research
Annabelle 2.1 Ransomware
Annabelle 2.1 is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on March 1, 2019, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- Annabelle 2.1
- First Seen
- March 1, 2019
How Annabelle 2.1 Ransomware Works
Targeted Files
Destroys contents of the files
File Encryption Patterns
Annabelle 2.1 modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..AnnabelleCreateRansom Note and Payment Demands
After encrypting files, Annabelle 2.1 displays ransom notes demanding payment for file recovery:
Ransom message:
notes/note.txt
Note locations:
OnceOnCompletionTechnical Indicators
Associated Executable Files
The following executable files are associated with Annabelle 2.1 ransomware:
Annabelle.exemyfile.exe
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About This Analysis
This Annabelle 2.1 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 Annabelle 2.1.
Last updated: July 30, 2025