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Maze Ransomware (.<4~7-Digit Random Extension> / DECRYPT-FILES.txt)

  • Distribution Method : Automatic infection using exploit by visiting website
 
  • MD5 : 8205a1106ae91d0b0705992d61e84ab2
 
  • Major Detection Name : Trojan.Ransom.ChaCha (ALYac), Ransom.Maze (Malwarebytes)
 
  • Encrypted File Pattern : .<4~7-Digit Random Extension>
 
  • Malicious File Creation Location :
     - C:\ProgramData\0x29A.db
     - C:\Users\%UserName%\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\DECRYPT-FILES.txt
 
  • Payment Instruction File : DECRYPT-FILES.txt
 
  • Major Characteristics :
     - Offline Encryption
     - ChaCha Ransomware series
     - Disable system restore ("C:\a\u\k\..\..\..\Windows\jo\..\system32\pchmo\ctg\ff\..\..\..\wbem\qgmmn\wagxm\enlgf\..\..\..\wmic.exe" shadowcopy delete)
     - Encryption guide using Text-to-Speech (TTS) function
     - Changes desktop background (C:\Users\%UserName%\AppData\Local\Temp\000.bmp)

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