Annabelle Ransomware
Annabelle is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on February 1, 2018, this ransomware has been actively targeting systems worldwide.
Quick facts
How Annabelle ransomware works
File encryption patterns
Annabelle modifies encrypted files using specific patterns to mark them as encrypted:
Ransom note and payment demands
After encrypting files, Annabelle displays ransom notes demanding payment for file recovery:
notes/note.txt
Technical indicators
Associated executable files
The following executable files are associated with Annabelle ransomware:
- nbnbnbnbnbnb
- Vichingo455@Annabelle.exe
- Annabelle.exe
- Annabelle_ransom.exe
- MrsMajor4.0.exe
- Trojan-Ransom.Annabelle.exe
- Trojan.Ransom.Annabelle.exe
- 716335ba5cd1e7186c40295b199190e2b6655e48f1c1cbe12139ba67faa5e1ac_2.exe
- Ransomware Annabelle.exe
- install_C#.exe
- nbnbnbnbnbnb.exe
- annabelle.exe
- ImLegend.exe
- Annabelle.bin
Recovery and decryption tools
Decryption tools may be available for Annabelle. Review the resources below:
About this analysis
This Annabelle ransomware analysis is part of Elastio's comprehensive ransomware detection database. Elastio provides advanced ransomware protection and recovery, helping organizations defend against and recover from ransomware attacks like Annabelle.
Last updated: December 30, 2025
Elastio detects Annabelle inside your data and backups.
The Hunt Engine uses Deep File Inspection to identify Annabelle across live data, replicated data, and backups. If this family is in your environment, Elastio finds it before encryption completes. Run a scan against your recovery points to confirm.
Recent ransomware
Explore other threats in our database