Analysis

  • max time kernel
    148s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    23/08/2026, 20:06

General

  • Target
    66aa4f68c8f92a094643f8ddc217ade5f5bae647f3797cca6acbda4cd446f05e.dll
  • Size 1.8MB
  • Sample260823-yvrbasbb92
  • SHA256 66aa4f68c8f92a094643f8ddc217ade5f5bae647f3797cca6acbda4cd446f05e
  • MD5 SHA1 SHA512 SSDEEP TLSH
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 SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 1 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\66aa4f68c8f92a094643f8ddc217ade5f5bae647f3797cca6acbda4cd446f05e.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:5608
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\66aa4f68c8f92a094643f8ddc217ade5f5bae647f3797cca6acbda4cd446f05e.dll,#1
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      PID:1272
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1272 -s 700
        3⤵
        • Program crash
        PID:4860
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 1272 -ip 1272
    1⤵
      PID:864

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          memory/1272-0-0x0000000010000000-0x0000000010217000-memory.dmp

          memory/1272-1-0x0000000010104000-0x0000000010105000-memory.dmp

          memory/1272-2-0x0000000010000000-0x0000000010217000-memory.dmp