hxxps://fj4t[.]dxykaf[.]cn/download/%E9%A9%B1%E5%8A%A8%E7%B2%BE%E7%81%B5%E7%BB%BF%E8%89%B2%E7%89%88_2_1207539[.]exe

General

Target

https://fj4t.dxykaf.cn/download/%E9%A9%B1%E5%8A%A8%E7%B2%BE%E7%81%B5%E7%BB%BF%E8%89%B2%E7%89%88_2_1207539.exe
Sample

230404-w3bvgabb2z

Score

8^/10

Malware Config

Targets

- Target
  
  https://fj4t.dxykaf.cn/download/%E9%A9%B1%E5%8A%A8%E7%B2%BE%E7%81%B5%E7%BB%BF%E8%89%B2%E7%89%88_2_1207539.exe
Score

8^/10

bootkit discovery evasion persistence spyware stealer upx
- Creates new service(s)
  persistence
- Downloads MZ/PE file
- Drops file in Drivers directory
- Sets service image path in registry
  persistence
- Stops running service(s)
  evasion
- ACProtect 1.3x - 1.4x DLL software
  Detects file using ACProtect software.
- Checks computer location settings
  Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE
- Loads dropped DLL
- Modifies system executable filetype association
  persistence
- Reads user/profile data of web browsers
  Infostealers often target stored browser data, which can include saved credentials etc.
  spyware stealer
- Registers COM server for autorun
  persistence
- UPX packed file
  Detects executables packed with UPX/modified UPX open source packer.
  upx
- Adds Run key to start application
  persistence
- Checks for any installed AV software in registry
- Checks installed software on the system
  Looks up Uninstall key entries in the registry to enumerate software on the system.
  discovery
- Drops desktop.ini file(s)
- Enumerates connected drives
  Attempts to read the root path of hard drives other than the default C: drive.
- Writes to the Master Boot Record (MBR)
  Bootkits write to the MBR to gain persistence at a level below the operating system.
  bootkit persistence
- Drops file in System32 directory
- Suspicious use of NtSetInformationThreadHideFromDebugger
behavioral1