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Jigsaw Ransomware (.pennywise)

  • Distribution Method : Unknown
 
  • MD5 : f57a03996540d5cac794719c8f275511
 
  • Major Detection Name : Generic.MSIL.Ransomware.Jigsaw.FB3FA1CD (BitDefender), Ransom:MSIL/JigsawLocker.C (Microsoft)
 
  • Encrypted File Pattern : .pennywise
 
  • Malicious File Creation Location :
     - C:\Users\%UserName%\AppData\Local\MICR0SOFT
     - C:\Users\%UserName%\AppData\Local\MICR0SOFT\dllhost.exe
     - C:\Users\%UserName%\AppData\Roaming\MICR0SOFT_FILES
     - C:\Users\%UserName%\AppData\Roaming\MICR0SOFT_FILES\dr
     - C:\Users\%UserName%\AppData\Roaming\MICR0SOFT_FILES\EncryptedFileList.txt
     - C:\Users\%UserName%\AppData\Roaming\WIND0WS
     - C:\Users\%UserName%\AppData\Roaming\WIND0WS\svchost.exe
 
  • Major Characteristics :
     - Offline Encryption
     - Ramsey Ransomware series
     - Automatically delete encrypted files every hour.

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