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  • Distribution Method : Unknown
 
  • MD5 : 96c565af56a5ba8339f35121bf9ff196
 
  • Major Detection Name : A variant of MSIL/Filecoder.Thanos.A (ESET), Ransom.Prometheus (Malwarebytes)
 
  • Encrypted File Pattern : .[<3-Digit Random>-<3-Digit Random>-<3~4-Digit Random>]
 
  • Malicious File Creation Location :
     - C:\Users\%UserName%\AppData\Local\Temp\<Random>.exe
     - 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.hta
 
  • Payment Instruction File : RESTORE_FILES_INFO.hta / RESTORE_FILES_INFO.txt
 
  • Major Characteristics :
     - Offline Encryption
     - Thanos Ransomware series
     - Allow Windows firewall rules (File and Printer Sharing, Network Discovery)
     - Block processes execution (agntsvc.exe, firefoxconfig.exe, mspub.exe, mydesktopqos.exe, mysqld.exe, sqbcoreservice.exe etc.)
     - Disable multi services (SQLTELEMETRY, SQLTELEMETRY$ECWDB2, SQLWriter, SstpSvc etc.)
     - Disable system restore ("powershell.exe" & Get-WmiObject Win32_Shadowcopy | ForEach-Object { $_Delete(); })
     - Disable Raccine ransomware protection
     - Empty the trash ("cmd.exe" /c rd /s /q <Drive Letter>\\$Recycle.bin)

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