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Matrix Ransomware (No Change / !WhatHappenedWithMyFiles!.rtf)

  • Distribution Method : Automatic infection using exploit by visiting website
 
  • MD5 : c5f3ca89e616deae3ab3b6633502cb6d
 
  • Major Detection Name : Trojan.Ransom.Matrix (ALYac), Trojan-Ransom.Win32.Matrix.go (Kaspersky)
 
  • Encrypted File Pattern : No Change
 
  • Malicious File Creation Location :
         - C:\ProgramData\Microsoft\Windows\Start Menu\Programs\StartUp\<Random>.hta
         - C:\ProgramData\Microsoft\Windows\Start Menu\Programs\StartUp\<Random>.lnk
         - C:\Users\%UserName%\AppData\Local\Microsoft\<Random>.exe
         - C:\Users\%UserName%\AppData\Local\Temp\<Random>.exe
         - C:\Users\%UserName%\AppData\Roaming\Microsoft\<Random>.exe
         - C:\Users\%UserName%\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\<Random>.hta
         - C:\Users\%UserName%\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\<Random>.lnk
         - C:\Users\%UserName%\AppData\Roaming\<Random>\<Random>.exe
 
  • Payment Instruction File : !WhatHappenedWithMyFiles!.rtf / !WhatHappenedWithMyFiles!1.rtf ~ !WhatHappenedWithMyFiles!50.rtf / <Random>.hta
 
  • Major Characteristics :
         - Offline Encryption
         - Ransomware execution using Event Viewer (eventvwr.msc)
         - Disable system restore (vssadmin.exe delete shadows /all /quiet)

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