Analysis

  • max time kernel
    1772s
  • max time network
    1817s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-es
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-eslocale:es-esos:windows10-2004-x64systemwindows
  • submitted
    26/06/2024, 02:20

General

  • Target
    $PLUGINSDIR/UAC.dll
  • Size 14KB
  • Sample240626-css68asakp
  • SHA256 2f7f8fc05dc4fd0d5cda501b47e4433357e887bbfed7292c028d99c73b52dc08
  • MD5 SHA1 SHA512 SSDEEP
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\UAC.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3096
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\UAC.dll,#1
      2⤵
        PID:644
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 644 -s 624
          3⤵
          • Program crash
          PID:1716
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 644 -ip 644
      1⤵
        PID:2572
      • 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=es --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3492 --field-trial-handle=1984,i,6250324430674571549,669234090731242346,262144 --variations-seed-version /prefetch:8
        1⤵
          PID:3212
        • 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=es --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3484 --field-trial-handle=1984,i,6250324430674571549,669234090731242346,262144 --variations-seed-version /prefetch:8
          1⤵
            PID:2004

          Network

                MITRE ATT&CK Matrix

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