Analysis

  • max time kernel
    148s
  • max time network
    126s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    14/10/2026, 12:21

General

  • Target
    updll3.dll
  • Size 1015KB
  • Sample261014-pjs63svvbw
  • SHA256 416309526deda096ac6b16949a61237b47100fa6854d74e3bfacaab3d8a4afb8
  • 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 WriteProcessMemory 1 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\updll3.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4472
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\updll3.dll,#1
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2388
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2388 -s 632
        3⤵
        • Program crash
        PID:5060
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 392 -p 2388 -ip 2388
    1⤵
      PID:3136

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          memory/2388-1-0x0000000000790000-0x0000000000792000-memory.dmp

          memory/2388-0-0x0000000074E30000-0x00000000750FF000-memory.dmp

          memory/2388-3-0x0000000074E30000-0x00000000750FF000-memory.dmp