- Distribution Method : Automatic infection using exploit by visiting website
- MD5 : 005332c172792d1598b0b3d9397b5f03
- Major Detection Name : Trojan/Win32.Magniber.C2258729 (AhnLab V3), a variant of Win32/Kryptik.FYXU (ESET)
- Encrypted File Pattern : .hfsgvl
- Malicious File Creation Location :
- C:\Users\%UserName%\AppData\Local\Temp\hfsgvl.exe
- C:\Users\%UserName%\AppData\Local\Temp\READ_ME_FOR_DECRYPT.txt
- C:\Users\%UserName%\Desktop\<Random>.exe
- C:\Windows\System32\Tasks\hfsgvl
- C:\Windows\System32\Tasks\<Random>
- C:\Windows\System32\Tasks\<Random>1
- Payment Instruction File : READ_ME_FOR_DECRYPT.txt
- Major Characteristics :
- Offline Encryption
- Run only on Korean operating system
- Disable system restore (wmic shadowcopy delete) using Event Viewer (eventvwr.exe)
- Auto execute ransomware (pcalua.exe -a %Temp%\hfsgvl.exe) and payment instrucition file (%Temp%\READ_ME_FOR_DECRYPT.txt) every 15 minutes by adding Task Scheduler entries
- Auto connect MY DECRYPTOR site (cmd.exe /c start iexplore http://<URL>) every a hour by adding Task Scheduler entries
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