Analysis

  • max time kernel
    150s
  • max time network
    54s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22-06-2024 12:23

General

  • Target

    021a6b5f59d2f15796b2a4b8f31eb929_JaffaCakes118.exe

  • Size

    7.6MB

  • MD5

    021a6b5f59d2f15796b2a4b8f31eb929

  • SHA1

    dbc775eb9407d0da43f3c5877eeae0ef90115af5

  • SHA256

    d56928748500c56bbb47036df0be3e37573a239e90eb4b54efa9a2b82df9f75e

  • SHA512

    7674cb84f27b9d05c81c5897d18ed7705938d43bd5888ca4da034277e2dba949724c0f10d99720588fe3f29534913b54ad08467f962e83fd702ccda960bdcb5f

  • SSDEEP

    196608:i7effIPEsy58doQaTxLhQyZbIly38doQalArdfehQM9rdQyZb9eMf1WIEx6NqLNo:i7effIPEsy58doQaTxLhQyZbIly38doN

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 2 IoCs
  • Drops file in Drivers directory 2 IoCs
  • Sets service image path in registry 2 TTPs 1 IoCs
  • ACProtect 1.3x - 1.4x DLL software 2 IoCs

    Detects file using ACProtect software.

  • Loads dropped DLL 1 IoCs
  • UPX packed file 10 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Adds Run key to start application 2 TTPs 4 IoCs
  • Enumerates connected drives 3 TTPs 64 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Installs/modifies Browser Helper Object 2 TTPs 3 IoCs

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

  • Modifies WinLogon 2 TTPs 1 IoCs
  • Drops file in System32 directory 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\021a6b5f59d2f15796b2a4b8f31eb929_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\021a6b5f59d2f15796b2a4b8f31eb929_JaffaCakes118.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Drops file in Drivers directory
    • Sets service image path in registry
    • Loads dropped DLL
    • Adds Run key to start application
    • Enumerates connected drives
    • Modifies WinLogon
    • Drops file in System32 directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4996
    • C:\Users\Admin\AppData\Local\Temp\021a6b5f59d2f15796b2a4b8f31eb929_JaffaCakes118.exe
      C:\Users\Admin\AppData\Local\Temp\021a6b5f59d2f15796b2a4b8f31eb929_JaffaCakes118.exe
      2⤵
      • Enumerates connected drives
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4476
      • C:\Users\Admin\AppData\Local\Temp\021a6b5f59d2f15796b2a4b8f31eb929_JaffaCakes118.exe
        C:\Users\Admin\AppData\Local\Temp\021a6b5f59d2f15796b2a4b8f31eb929_JaffaCakes118.exe
        3⤵
        • Enumerates connected drives
        PID:3408
    • C:\Windows\SysWOW64\reg.exe
      reg delete "HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects" /f
      2⤵
      • Installs/modifies Browser Helper Object
      PID:1284
    • C:\Users\Admin\AppData\Local\Temp\021a6b5f59d2f15796b2a4b8f31eb929_JaffaCakes118.exe
      C:\Users\Admin\AppData\Local\Temp\021a6b5f59d2f15796b2a4b8f31eb929_JaffaCakes118.exe
      2⤵
      • Enumerates connected drives
      PID:4572

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\cftmon.exe

    Filesize

    7.7MB

    MD5

    4a40d7446c4a67e5fef1371ecb8565e4

    SHA1

    4b77325d8f6868c74b04e99c0ed9cf59f1da4241

    SHA256

    212864cb3cc9bd06ea84e94049b955e8207aa14a34e0987e4594c37b4eefe76f

    SHA512

    82bf7a39b74fe2ff0a73eb1c35362e3b8ec2fefb4129596feca8ad78464d1b434aa6bd7001f75a23681895f28d6040a9e2da8232f05346de72c6c8b5eed5efd8

  • C:\Windows\SysWOW64\ftpdll.dll

    Filesize

    5KB

    MD5

    d807aa04480d1d149f7a4cac22984188

    SHA1

    ffd5be65fd10017e34c11cecd105ebf4aa6c0cd9

    SHA256

    eddf092d901afe128322910c3ff41a3f242d33d6b4cdf91ece327076b324ccbb

    SHA512

    875543583c20ab164f37a4fb2587d234ce0a15d649d22b0d1dae5933f0a7683db170578746ea4458c51fec26e2243c6ec00dc10db8d4289789e50d5800cf863e

  • memory/3408-20-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/4476-1-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/4476-18-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/4572-8-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/4572-19-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/4996-0-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/4996-14-0x0000000010000000-0x000000001010B000-memory.dmp

    Filesize

    1.0MB

  • memory/4996-16-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB