Analysis

  • max time kernel
    141s
  • 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
    02-06-2024 11:37

General

  • Target

    $PLUGINSDIR/Base64.dll

  • Size

    3KB

  • MD5

    20dc0e30cc3a715e100f8662d09b71a9

  • SHA1

    c40b9158a8c8e28d4ce7ba73a6f2e69368afc389

  • SHA256

    015f30080a8a8ef5c9ee8751400100e3c8abb48d5c8ab5208a48daae39d22e9f

  • SHA512

    2e455dfa373f91b563dedd2e043f8730e686bb1a6ae45c488e5ea5b9cbb0c7658b767b2e751008757c62537f8b70396aae79721dcbf13e493daaf6cebc5500bd

Score
3/10

Malware Config

Signatures

  • Program crash 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\Base64.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1712
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\Base64.dll,#1
      2⤵
        PID:4024
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4024 -s 600
          3⤵
          • Program crash
          PID:2596
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 4024 -ip 4024
      1⤵
        PID:820
      • 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=4088 --field-trial-handle=2676,i,447940133669489189,1353734109898858672,262144 --variations-seed-version /prefetch:8
        1⤵
          PID:4164

        Network

        MITRE ATT&CK Matrix

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        Downloads