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CrySis Ransomware (.id-<Random>.[admin@fentex.net].money)

  • Distribution Method : Automatic infection using exploit by visiting website
 
  • MD5 : a69f3a78ad514109d3e377ea571baa07
 
  • Major Detection Name : Trojan.Encoder.3953 (Dr.Web), a variant of Win32/Kryptik.GXFU (ESET)
 
  • Encrypted File Pattern : .id-<Random>.[admin@fentex.net].money
 
  • Malicious File Creation Location :
     - C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\<Random>.tmp.exe
     - C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta
     - C:\Users\%UserName%\AppData\Local\Temp\<Random>.tmp.exe
     - C:\Users\%UserName%\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\<Random>.tmp.exe
     - C:\Users\%UserName%\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta
     - C:\Users\%UserName%\AppData\Roaming\<Random>.tmp.exe
     - C:\Users\%UserName%\AppData\Roaming\Info.hta
     - C:\Users\%UserName%\Desktop\FILES ENCRYPTED.txt
     - C:\Users\Public\Desktop\FILES ENCRYPTED.txt
     - C:\Windows\System32\<Random>.tmp.exe
     - C:\Windows\System32\Info.hta
     - <Drive Letter>:\FILES ENCRYPTED.txt
 
  • Payment Instruction File : FILES ENCRYPTED.txt / Info.hta
 
  • Major Characteristics :
     - Offline Encryption
     - Dharma / Phobos Ransomware series
     - Block processes execution (mysqld.exe, mysqld-nt.exe, outlook.exe, postgres.exe, sqlservr.exe etc.)
     - Stop multi services (mssqlserver, sqlserveradhelper, sqlwriter etc.)
     - Disable system restore (vssadmin delete shadows /all /quiet)

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