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Jigsaw Ransomware (.v315)

  • Distribution Method : Unknown
 
  • MD5 : 53d127da64ff2f9b722be3c96d41b211
 
  • Major Detection Name : Generic.MSIL.Ransomware.Jigsaw.6E1E5F19 (BitDefender), Ransom.Jigsaw (Malwarebytes)
 
  • Encrypted File Pattern : .v315
 
  • Malicious File Creation Location :
     - C:\Users\%UserName%\AppData\Local\Adobe (x86)
     - C:\Users\%UserName%\AppData\Local\Adobe (x86)\AcroRd32.exe
     - C:\Users\%UserName%\AppData\Roaming\Google (x86)
     - C:\Users\%UserName%\AppData\Roaming\Google (x86)\Chrome32.exe
     - C:\Users\%UserName%\AppData\Roaming\System32Work
     - C:\Users\%UserName%\AppData\Roaming\System32Work\Address.txt
     - C:\Users\%UserName%\AppData\Roaming\System32Work\dr
     - C:\Users\%UserName%\AppData\Roaming\System32Work\EncryptedFileList.txt
 
  • Major Characteristics :
     - Offline Encryption
     - Ramsey Ransomware series
     - Create a fake ".NET Framework Initialization Error" message
     - Automatically delete encrypted files every hour.

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