Analysis

  • max time kernel
    149s
  • max time network
    94s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21-09-2024 02:52

General

  • Target

    6a292072dd9bb1cd7d363711f7eb1b0d61355af32554357a47b0870c56e66615N.exe

  • Size

    312KB

  • MD5

    8578705c790e74660139a48490816360

  • SHA1

    119832f530b5a21cd6346d288948748c11f4727e

  • SHA256

    6a292072dd9bb1cd7d363711f7eb1b0d61355af32554357a47b0870c56e66615

  • SHA512

    fa1a69d561cf1723eeb0782cd898df9ed26c370489566ff0b3bad8535a29294c3b0d4b7678c1acb3a39880231cea19b4e040e11e8c57839d37e77dcc2eb284da

  • SSDEEP

    6144:Xcax3LbxJYw4xusUws+0sQm/WuPxnyXX7:vLbxJIAsBs+0qR

Malware Config

Signatures

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 27 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\6a292072dd9bb1cd7d363711f7eb1b0d61355af32554357a47b0870c56e66615N.exe
    "C:\Users\Admin\AppData\Local\Temp\6a292072dd9bb1cd7d363711f7eb1b0d61355af32554357a47b0870c56e66615N.exe"
    1⤵
    • Modifies visiblity of hidden/system files in Explorer
    • Checks computer location settings
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2120
    • C:\Users\Admin\syjis.exe
      "C:\Users\Admin\syjis.exe"
      2⤵
      • Modifies visiblity of hidden/system files in Explorer
      • Executes dropped EXE
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      PID:1860

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\syjis.exe

    Filesize

    312KB

    MD5

    0013ba60a8662142839d485da19ef697

    SHA1

    67d0e20d99820a29a10483dda30e1cf7fee755a6

    SHA256

    29e1a88878ff53836220616d6ccd4cce25408865e40d8f99a78965d319aa6246

    SHA512

    630e5f3712528bc687ffaa5bbb221562f43ffbd057f8b787878199c74335c0285444a7e3af38926fb0b83b0583234947bca2c38d04d6ec4eef20751e7f86f58a