- Distribution Method : Unknown
- MD5 : 9eb958c38bd3d39c55b009f9a200f42f
- Major Detection Name : Generic.Ransom.HydraCrypt.ED1818FC (BitDefender), Ransom.MSIL.CHAOS.SMRA14 (Trend Micro)
- Encrypted File Pattern : .GoldenWolf42
- Malicious File Creation Location :
- C:\Users\%UserName%\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\read_it.txt
- C:\Users\%UserName%\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.url
- C:\Users\%UserName%\AppData\Roaming\read_it.txt
- C:\Users\%UserName%\AppData\Roaming\svchost.exe
- <Drive Letter>:\surprise.exe
- Payment Instruction File : read_it.txt
- Major Characteristics :
- Offline Encryption
- Data corruption method
- BiggyLocker / ONYX / Penta / Yashma Ransomware series
- Disable system restore (vssadmin delete shadows /all /quiet, wmic shadowcopy delete, bcdedit /set {default} bootstatuspolicy ignoreallfailures, bcdedit /set {default} recoveryenabled no, wbadmin delete catalog -quiet)
- Changes desktop background (C:\Users\%UserName%\AppData\Local\Temp\<Random>.jpg)
- Propagation using "<Drive Letter>:\surprise.exe" file.
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