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Matrix Ransomware (<Random>-<Random>.[Bitmine8@tutanota.com])

  • Distribution Method : Remote access through Remote Desktop Protocol(RDP) or Terminal Services
 
  • MD5 : 00b3c199e2af831eaa743aacbe72aeaa
 
  • Major Detection Name : Trojan/Win32.Matrix.C2428826 (AhnLab V3), Troj/Matrix-I (Sophos)
 
  • Encrypted File Pattern : <Random>-<Random>.[Bitmine8@tutanota.com]
 
  • Malicious File Creation Location :
     - C:\Users\%UserName%\AppData\Roaming\#ReadMe_T0_Decrypt_Files.rtf
     - C:\Users\%UserName%\AppData\Roaming\<Random>.cmd
     - C:\Users\%UserName%\AppData\Roaming\<Random>.vbs
 
  • Payment Instruction File : #ReadMe_T0_Decrypt_Files.rtf
 
  • Major Characteristics :
     - Offline Encryption
     - Disable system restore (WMIC.exe shadowcopy delete /nointeractive, vssadmin.exe delete shadows /all /quiet)
     - Interrupt file recovery using cipher.exe /w:<Drive Letter>
     - Changes desktop background (C:\Users\%UserNamer%\AppData\Roaming\<Random>.jpg)

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