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Analysis

  • max time kernel
    142s
  • max time network
    159s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20/06/2024, 11:17

General

  • Target

    $SYSDIR/MMUTIL32.dll

  • Size

    61KB

  • MD5

    669874d162286ccaa8a003cc1dee5b99

  • SHA1

    c3d0f9f0d778a824b8cd7e81c46733d7a2f4d7bc

  • SHA256

    41974aedfd7b9ec8be6f734e84aa327d55a2aba02cf31d89edd4440bc933c44c

  • SHA512

    4f4d4a58f65309d0cdd82749d4081cccec194581a28b1da6b80e03e20da4360b45abaceba93c151529b837b339ba029b803cbf617b0d364c2b09133a4d120b0d

  • SSDEEP

    768:ijL4LqkIZg1+3lOwvA+0XYzd88Z+sNV5nFCHW3mGToHut9PjvnhuLKEDRzmkMUnp:i4LqHzV0X18jNV7TcHu3QdPMUVMo

Score
1/10

Malware Config

Signatures

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\$SYSDIR\MMUTIL32.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:568
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\$SYSDIR\MMUTIL32.dll,#1
      2⤵
        PID:4452
    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=2232 --field-trial-handle=3060,i,1774866140584649235,8085848018931772189,262144 --variations-seed-version /prefetch:8
      1⤵
        PID:1332

      Network

      MITRE ATT&CK Matrix

      Replay Monitor

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      Downloads

      • memory/4452-0-0x0000000001020000-0x0000000001034000-memory.dmp

        Filesize

        80KB