Ransomware Research
Matryoshka Ransomware
Matryoshka is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on May 1, 2021, this ransomware has been actively targeting systems worldwide. Security researchers also track this malware under the aliases: Матрёшка Рансомваре.
Quick Facts
- Ransomware Family
- Matryoshka
- First Seen
- May 1, 2021
- Known Aliases
- Матрёшка Рансомваре
How Matryoshka Ransomware Works
File Encryption Patterns
Matryoshka modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..matryoshkaRansom Note and Payment Demands
After encrypting files, Matryoshka 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 Matryoshka ransomware:
NitroSnypa.exeNitro_Snypa.exe
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About This Analysis
This Matryoshka 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 Matryoshka.
Last updated: July 30, 2025