Analysis

  • max time kernel
    898s
  • max time network
    443s
  • platform
    windows11-21h2_x64
  • resource
    win11-20251223-en
  • resource tags

    arch:x64arch:x86image:win11-20251223-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    24/12/2025, 11:52

General

  • Target
    gear_core_win32DLL.dll
  • Size 1.0MB
  • Sample251224-n17kcsby3c
  • SHA256 17bf5076aa5334a89b9f08945fc220517cb7d9386c29ebdb359da219aedd3822
  • MD5 SHA1 SHA512 SSDEEP
Score
3/10

Malware Config

Signatures

  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

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

  • Suspicious use of WriteProcessMemory 1 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\gear_core_win32DLL.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4732
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\gear_core_win32DLL.dll,#1
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2740
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2740 -s 476
        3⤵
        • Program crash
        PID:4964
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 2740 -ip 2740
    1⤵
      PID:2160

    Network

          MITRE ATT&CK Enterprise v16

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          Downloads