Ransomware Research

RAA Ransomware

RAA is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on August 1, 2016, this ransomware has been actively targeting systems worldwide. Security researchers also track this malware under the aliases: RAA (RAA SEP).

Quick Facts

Ransomware Family
RAA
First Seen
August 1, 2016
Known Aliases
RAA (RAA SEP)

How RAA Ransomware Works

Targeted Files

https://www.trendmicro.com/vinfo/us/threat-encyclopedia/malware/ransom_jsraa.d Written in JS

File Encryption Patterns

RAA modifies encrypted files using specific patterns to mark them as encrypted:

File extensions added after encryption:

..locked

Ransom Note and Payment Demands

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

file/^!!!README!!!\w{5}\.rtf\b/

Ransom message:

notes/!!!README!!!MTCu1.rtf

Note locations:

RootDiscsDesktop

Technical Indicators

Associated Executable Files

The following executable files are associated with RAA ransomware:

  • Счет+штрафные санкции.doc
  • dfsdb.js
  • Щелкните дважды, чтоб установить обновление Microsoft v.2016-1.js
  • dfsdb.js1
  • _MICRO~1.JS
  • ii.exe
  • ii.bin
  • 02 ransom.js
  • 13.js
  • javaransom2.js
  • ransom.js
  • st.js
  • RANSOMWARESCRIPT_PONYDOWNLOADER.js
  • ST.js
  • mgJaXnwanxlS_doc_.js

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About This Analysis

This RAA 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 RAA.

Last updated: July 30, 2025

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