Overview

overview

7

Static

static

3

SystemUpdate.exe

windows10-2004-x64

7

SystemUpdate.exe

windows11-ltsc_2024-x64

7

Analysis

  • user interaction
    yes
  • max time kernel
    299s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260618-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260618-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    20/06/2026, 11:29

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General

  • Target
    SystemUpdate.exe
  • Size 29.8MB
  • Sample260620-nl2essfx8s
  • SHA256 e2e9d1afad1eb8a1b20c7d17485206181e0a8dd5714e66a69e21403753b3e4fa
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
7/10

Malware Config

Signatures

  • Loads dropped DLL 11 IoCs
  • Suspicious use of WriteProcessMemory 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\SystemUpdate.exe
    "C:\Users\Admin\AppData\Local\Temp\SystemUpdate.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:720
    • C:\Users\Admin\AppData\Local\Temp\SystemUpdate.exe
      "C:\Users\Admin\AppData\Local\Temp\SystemUpdate.exe"
      2⤵
      • Loads dropped DLL
      PID:1836

Network

        MITRE ATT&CK Matrix

        Replay Monitor

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        Downloads

        VCRUNTIME140.dll
        • Path C:\Users\Admin\AppData\Local\Temp\_MEI7202\VCRUNTIME140.dll
        • Size 117KB
        • SHA256 052ad6a20d375957e82aa6a3c441ea548d89be0981516ca7eb306e063d5027f4
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        _bz2.pyd
        • Path C:\Users\Admin\AppData\Local\Temp\_MEI7202\_bz2.pyd
        • Size 84KB
        • SHA256 b4aa26c44a529de7129733a31b73fd74e474b9069edf02d3151d067ac5d52a5c
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        _ctypes.pyd
        • Path C:\Users\Admin\AppData\Local\Temp\_MEI7202\_ctypes.pyd
        • Size 131KB
        • SHA256 69ccbfa336004742c18fba4a2d0d24aba5f5e1578983278137788166ea322a22
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        _lzma.pyd
        • Path C:\Users\Admin\AppData\Local\Temp\_MEI7202\_lzma.pyd
        • Size 155KB
        • SHA256 71387e8484088f8291664312d985f42454017e1f556bd4107e2d065f19a799ec
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        _socket.pyd
        • Path C:\Users\Admin\AppData\Local\Temp\_MEI7202\_socket.pyd
        • Size 84KB
        • SHA256 6050e57e93872e3cd86daeca9594362ad256a9bbe00e0549fa5988a9b43c90e3
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        base_library.zip
        • Path C:\Users\Admin\AppData\Local\Temp\_MEI7202\base_library.zip
        • Size 1.3MB
        • SHA256 ed1bf8eed0dd0dd6e24d0db061ff43959adf0be738484dc32af9ef5e83255898
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        libffi-8.dll
        • Path C:\Users\Admin\AppData\Local\Temp\_MEI7202\libffi-8.dll
        • Size 38KB
        • SHA256 eff52743773eb550fcc6ce3efc37c85724502233b6b002a35496d828bd7b280a
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        python3.DLL
        • Path C:\Users\Admin\AppData\Local\Temp\_MEI7202\python3.DLL
        • Size 70KB
        • SHA256 f950ce3bf381d5ffae90cf63ec9c9761f1666d9a570e2f203a7f22da6f8e14f3
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        python313.dll
        • Path C:\Users\Admin\AppData\Local\Temp\_MEI7202\python313.dll
        • Size 5.8MB
        • SHA256 e7119fc5892eab890d44f6df05f44d50cf8c390c35d152e589e0c35781ca8d05
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        select.pyd
        • Path C:\Users\Admin\AppData\Local\Temp\_MEI7202\select.pyd
        • Size 32KB
        • SHA256 0dc63cb35f1776d732cb3fbbbdd9e5912b29a98465d3927a8162e8475c0f6809
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        ucrtbase.dll
        • Path C:\Users\Admin\AppData\Local\Temp\_MEI7202\ucrtbase.dll
        • Size 1.3MB
        • SHA256 d404dc9aa843d53d7e276dd078b2cac8d7aa905e2838a1fe8385278e19ba3810
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download