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Carlos Ransomware (.[<Random>].[sinister0730@tutanota.com].sinister)

  • Distribution Method : Mail attachment file
 
  • MD5 : b99559cb51248197b6246843c050a337
 
  • Major Detection Name : Win32:NSISDropper-B [Drp] (Avast), NSIS/ObfusRansom.f (McAfee)
 
  • Encrypted File Pattern : .[<Random>].[sinister0730@tutanota.com].sinister
 
  • Malicious File Creation Location :
     - C:\Users\%UserName%\Desktop\SomeFile.txt
     - <Drive Letter>:\YOUR_FILES_ARE_ENCRYPTED
     - <Drive Letter>:\YOUR_FILES_ARE_ENCRYPTED\readme-warning.txt
 
  • Payment Instruction File : readme-warning.txt
 
  • Major Characteristics :
     - Offline Encryption
     - Block processes execution (dbsnmp.exe, excel.exe, mspub.exe, outlook.exe, thebat.exe, winword.exe etc.)
     - Disable system restore (vssadmin delete shadows /all /quiet, wbadmin delete catalog -quiet, wmic shadowcopy delete)

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