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CrySis Ransomware (.[xmen_xmen@aol.com].wallet)

  • Distribution Method : Remote access through Remote Desktop Protocol(RDP) or Terminal Services
 
  • MD5 : 56299609780e2286ccc2cf5857d531e8
 
  • Major Detection Name : Dropped:Generic.Ransom.Crysis.62D303C4 (BitDefender), a variant of Win32/Filecoder.Crysis.L (ESET)
 
  • Encrypted File Pattern : .[xmen_xmen@aol.com].wallet
 
  • Malicious File Creation Location :
     - C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\<Random>.exe
     - C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta
     - C:\Users\%UserName%\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\<Random>.exe
     - C:\Users\%UserName%\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta
     - C:\Users\%UserName%\AppData\Roaming\Info.hta
     - C:\Users\%UserName%\Desktop\dangir!data bloked.txt
     - C:\Users\Public\Desktop\dangir!data bloked.txt
     - C:\Windows\System32\<Random>.exe
     - C:\Windows\System32\Info.hta
 
  • Payment Instruction File : dangir!data bloked.txt / Info.hta
 
  • Major Characteristics :
     - Offline Encryption
     - Dharma / Phobos Ransomware series
     - Block processes execution (1cv77.exe, mysqld-nt.exe, outlook.exe, postgres.exe etc.)
     - Disable system restore (vssadmin delete shadows /all /quiet)

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