Analysis

  • max time kernel
    147s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20-06-2024 08:09

General

  • Target

    04402045a46aa7c1a46adf17c775d84d_JaffaCakes118.dll

  • Size

    260KB

  • MD5

    04402045a46aa7c1a46adf17c775d84d

  • SHA1

    5baa0bf6ee417aa15fc9bb26d06cc0202aa396fb

  • SHA256

    60b38c6d54bca68644290a535ab81bdd9c87b2eeb65c94bc79a359184065b77b

  • SHA512

    733ab8d5cf47cfb8720180330035c82ad1ad64df21f6047b5a4fe312cee800201bb2cbea8616ba80801ae96ff113cf16e7e849e6360be5b31cee15be4052d5b6

  • SSDEEP

    3072:s4z9XYZ7YJCTC32aFQQMLEbHtW3ftp50jErDZ2jIL:fY9vC3t3U3xus

Malware Config

Signatures

  • Event Triggered Execution: AppInit DLLs 1 TTPs

    Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by AppInit DLLs loaded into processes.

  • Impair Defenses: Safe Mode Boot 1 TTPs 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Installs/modifies Browser Helper Object 2 TTPs 3 IoCs

    BHOs are DLL modules which act as plugins for Internet Explorer.

  • Drops file in System32 directory 3 IoCs
  • Modifies registry class 52 IoCs
  • Suspicious behavior: LoadsDriver 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Windows\system32\regsvr32.exe
    regsvr32 /s C:\Users\Admin\AppData\Local\Temp\04402045a46aa7c1a46adf17c775d84d_JaffaCakes118.dll
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3016
    • C:\Windows\SysWOW64\regsvr32.exe
      /s C:\Users\Admin\AppData\Local\Temp\04402045a46aa7c1a46adf17c775d84d_JaffaCakes118.dll
      2⤵
      • Impair Defenses: Safe Mode Boot
      • Adds Run key to start application
      • Installs/modifies Browser Helper Object
      • Drops file in System32 directory
      • Modifies registry class
      PID:1920

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Windows\SysWOW64\log.txt

    Filesize

    3KB

    MD5

    bc27128d3daf8f426034c2492c299e90

    SHA1

    4034502da3842d10e3f72db356b4e1df813a618d

    SHA256

    3ac89ef872500e6b97eda5f0c62a3c3bca50b2bf0d958de1789eb6d9443722df

    SHA512

    3af3a6be5022ea535831f8ce2d519b11c0be3d95b702ba2430de142b2b1332a1ba72a7a782e4092f5e64cdf65cafeec23c3fad222f126cb74dd424a83fcfdc88

  • C:\Windows\SysWOW64\log.txt

    Filesize

    850B

    MD5

    b16b1939a07b21f11ebe240e83b1c029

    SHA1

    595c12903be8a63da31b1d470943e28dca8d5777

    SHA256

    22e1baf11bc1ab4b6c97f97b09178b0ff71a122969949945a1591b0ee8da8e8f

    SHA512

    848af880307b64d034b28d09f300e464aec70666389f1bf5e4ce1731e3297c68265708975692c9b83d79583d2cde937b07dc312f4d8d0e98aa8d0bb6de91e9ac