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Thanos Ransomware (.[ID-<Random>].[black_private@tuta.io].CRYSTAL)

  • Distribution Method : Remote access through Remote Desktop Protocol(RDP) or Terminal Services
 
  • MD5 : a94fb3e4bba2713722871d8d25c65611
 
  • Major Detection Name : MSIL/Thanos.A!tr.ransom (Fortinet), Ransom.Hakbit (Malwarebytes)
 
  • Encrypted File Pattern : .[ID-<Random>].[black_private@tuta.io].CRYSTAL
 
  • Malicious File Creation Location :
     - C:\Users\%UserName%\AppData\Local\Temp\RESTORE_FILES_INFO.txt
     - C:\Users\%UserName%\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\mystartup.lnk
     - C:\Users\%UserName%\Desktop\RESTORE_FILES_INFO.txt
 
  • Payment Instruction File : RESTORE_FILES_INFO.txt
 
  • Major Characteristics :
     - Offline Encryption
     - Prometheus Ransomware series
     - Disable Raccine ransomware protection ("taskkill" /F /IM RaccineSettings.exe, "reg" delete "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /V "Raccine Tray" /F, "reg" delete HKCU\Software\Raccine /F, "schtasks" /DELETE /TN "Raccine Rules Updater" /F)
     - Block processes execution (excel.exe, firefoxconfig.exe, isqlplussvc.exe, mspub.exe, mydesktopservice.exe, thunderbird.exe etc.)
     - Stop multi services (avpsus, BackupExecVSSProvider, BMR Boot Service, DefWatch, QBFCService, sophos etc.)
     - Disable system restore ("powershell.exe" & Get-WmiObject Win32_Shadowcopy | ForEach-Object { $_Delete(); })
     - Empty the trash ("cmd.exe" /c rd /s /q <Drive Letter>\\$Recycle.bin)

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