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Analysis

  • max time kernel
    140s
  • max time network
    126s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19/08/2024, 02:41

General

  • Target

    a942373b18545ac3bcf86e774d38a6b5_JaffaCakes118.dll

  • Size

    137KB

  • MD5

    a942373b18545ac3bcf86e774d38a6b5

  • SHA1

    6bd5d473b8b5f62a5f51cc2fe123be0f6a4497e3

  • SHA256

    84948705fee010eaefb23ccd65be44459c8fe843409b12b50fcc297f790d8896

  • SHA512

    bb9e01103fbcf3f31c40f29670ba22c4fd73708daeb0acee89203addb017ac8600eb0f78a419d9724e8bac0b15999850ea8abdd4a119a3b13d6e13f92d31a9e1

  • SSDEEP

    3072:ITodYQXEDhWnp2g2hmPhZXc4Je/mZctxu/8ZyYEH:IEdOlWnpM4PhZXERxE8Zy

Malware Config

Signatures

  • Modifies WinLogon 2 TTPs 3 IoCs
  • Drops file in System32 directory 2 IoCs
  • Drops file in Windows directory 8 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 AdjustPrivilegeToken 18 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\a942373b18545ac3bcf86e774d38a6b5_JaffaCakes118.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4988
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\a942373b18545ac3bcf86e774d38a6b5_JaffaCakes118.dll,#1
      2⤵
      • Modifies WinLogon
      • Drops file in System32 directory
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      PID:4284
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k 240670171 -s BITS
    1⤵
      PID:3620
    • 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 --field-trial-handle=4112,i,9445584274764997943,12714240264001792460,262144 --variations-seed-version --mojo-platform-channel-handle=3976 /prefetch:8
      1⤵
        PID:4456

      Network

      MITRE ATT&CK Enterprise v15

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