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Matrix Ransomware (.<Random>.matrix)

  • Distribution Method : Unknown
 
  • MD5 : 56eaf78d4d6d8008abca1dea501062ef
 
  • Major Detection Name : Malware/Win32.Ransom_matrix.C1862656 (AhnLab V3), Ransom_MATRIX.B (Trend Micro)
 
  • Encrypted File Pattern : .<Random>.matrix
 
  • Malicious File Creation Location :
     - C:\Users\%UserName%\AppData\Local\Microsoft\<Random>.exe
     - C:\Users\%UserName%\AppData\Local\Temp\<Random>.exe
     - C:\Users\%UserName%\AppData\Roaming\Microsoft\<Random>.cmd
     - C:\Users\%UserName%\AppData\Roaming\Microsoft\<Random>.exe
     - C:\Users\%UserName%\AppData\Roaming\<Random>
     - C:\Users\%UserName%\AppData\Roaming\<Random>\<Random>.cmd
     - C:\Users\%UserName%\AppData\Roaming\<Random>\<Random>.exe
     - C:\Users\%UserName%\AppData\Roaming\<Random>.hta
 
  • Payment Instruction File : <Random>.hta / Readme-Matrix.rtf / Readme-Matrix1.rtf ~ Readme-Matrix20.rtf
 
  • Major Characteristics :
     - Offline Encryption
     - Change the default values of the registry entry "HKEY_CLASSES_ROOT\mscfile\shell\open\command" and a ransomware execution using Event Viewer (eventvwr.exe)
     - Disable system restore (vssadmin.exe delete shadows /all /quiet)

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