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Jaff Ransomware (.jaff)

  • Distribution Method : Mail attachment (.pdf)
 
  • MD5 : f5ebb00e1fb9bbcfe5ae742082e2002f
 
  • Major Detection Name : Trojan.Ransom.Jaff (ALYac), Ransom:Win32/Jaffrans!rfn (Microsoft)
 
  • Encrypted File Pattern : .jaff
 
  • Malicious File Creation Location :
         - C:\ProgramData\Rondo
         - C:\ProgramData\Rondo\backup.om
         - C:\ProgramData\Rondo\WallpapeR.bmp
         - C:\Users\%UserName%\AppData\Local\Temp\acrord32_sbx\<Random>_<Random>_<Random>.tmp\HHU67.docm
         - C:\Users\%UserName%\AppData\Local\Temp\drefudre20.exe
         - C:\Users\%UserName%\AppData\Local\Temp\eewadro20
 
  • Payment Instruction File : ReadMe.bmp / ReadMe.html / ReadMe.txt
 
  • Major Characteristics :
         - Offline Encryption
         - Locky Ransomware series
         - Changes desktop background (C:\ProgramData\Rondo\WallpapeR.bmp)

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