Analysis

  • max time kernel
    148s
  • max time network
    115s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    08/09/2026, 19:28

General

  • Target
    _decimal.dll
  • Size 80KB
  • Sample260908-x6t1wsgn21
  • SHA256 00c7754362482435e3c576c8a83907286d17794a1905a05cf69a9ecd34bcda94
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
5/10

Malware Config

Signatures

  • UPX packed file 5 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • 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\_decimal.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4952
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\_decimal.dll,#1
      2⤵
      • System Location Discovery: System Language Discovery
      PID:3428
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3428 -s 568
        3⤵
        • Program crash
        PID:4988
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 3428 -ip 3428
    1⤵
      PID:4216

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          memory/3428-0-0x00000000755B0000-0x00000000755E5000-memory.dmp

          memory/3428-1-0x0000000074FE0000-0x000000007558D000-memory.dmp

          memory/3428-2-0x0000000074F90000-0x0000000074FAA000-memory.dmp

          memory/3428-3-0x00000000755B0000-0x00000000755E5000-memory.dmp

          memory/3428-6-0x0000000074FE0000-0x000000007558D000-memory.dmp