Analysis

  • max time kernel
    150s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240709-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11/07/2024, 14:16

General

  • Target

    39797439bb6e6859432d61c2f68b1417_JaffaCakes118.exe

  • Size

    7.6MB

  • MD5

    39797439bb6e6859432d61c2f68b1417

  • SHA1

    a90ef0811bb7e6b6b1173f1bedc6d2956c0cb6cd

  • SHA256

    d99f3ed919d78424c454a1131a1f542a52b5f0ec4222b247947f269f5a8acb9c

  • SHA512

    397f4d02f57602258d0d82431f326c9229c0d17b987981b354d79bc669add90d193f8d4c9de86d84cf9d1cf8a47ae2424aab569defae51aca1332aa07d7cc7e5

  • SSDEEP

    196608:i7effIPEsy58doQaTzwZ8Jq3ELhf8cHpLG8doQpu8rVtxQuULG8doQav3hf8cHEa:i7effIPEsy58doQaTzwZ8Jq3ELhf8cHz

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 3 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\39797439bb6e6859432d61c2f68b1417_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\39797439bb6e6859432d61c2f68b1417_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:884
    • C:\Users\Admin\AppData\Local\Temp\39797439bb6e6859432d61c2f68b1417_JaffaCakes118.exe
      C:\Users\Admin\AppData\Local\Temp\39797439bb6e6859432d61c2f68b1417_JaffaCakes118.exe
      2⤵
      • Enumerates connected drives
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:5040
      • C:\Users\Admin\AppData\Local\Temp\39797439bb6e6859432d61c2f68b1417_JaffaCakes118.exe
        C:\Users\Admin\AppData\Local\Temp\39797439bb6e6859432d61c2f68b1417_JaffaCakes118.exe
        3⤵
        • Enumerates connected drives
        PID:2756
    • C:\Windows\SysWOW64\reg.exe
      reg delete "HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects" /f
      2⤵
      • Installs/modifies Browser Helper Object
      PID:4448
    • C:\Users\Admin\AppData\Local\Temp\39797439bb6e6859432d61c2f68b1417_JaffaCakes118.exe
      C:\Users\Admin\AppData\Local\Temp\39797439bb6e6859432d61c2f68b1417_JaffaCakes118.exe
      2⤵
      • Enumerates connected drives
      PID:3380

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    7.6MB

    MD5

    304e9463efedd6f3ee1bb8be862f1c79

    SHA1

    22c546d4767ebf43e45b3c9f1931aadfd41588fe

    SHA256

    3a544a89bb219fc293c1a9d0d2371d92976ec614b5a9dffd69408384626ac1b7

    SHA512

    55f0a24d65f4d9bcaddec6c19ce46330464f55912ff8c0950dcfb175cb29a29093cd9b9638bac730714b159c7e3123d46ecf42822553e1cac585267ccc63ac19

  • C:\Windows\SysWOW64\ftpdll.dll

    Filesize

    5KB

    MD5

    d807aa04480d1d149f7a4cac22984188

    SHA1

    ffd5be65fd10017e34c11cecd105ebf4aa6c0cd9

    SHA256

    eddf092d901afe128322910c3ff41a3f242d33d6b4cdf91ece327076b324ccbb

    SHA512

    875543583c20ab164f37a4fb2587d234ce0a15d649d22b0d1dae5933f0a7683db170578746ea4458c51fec26e2243c6ec00dc10db8d4289789e50d5800cf863e

  • memory/884-0-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/884-19-0x0000000010000000-0x000000001010B000-memory.dmp

    Filesize

    1.0MB

  • memory/884-20-0x0000000010000000-0x000000001010B000-memory.dmp

    Filesize

    1.0MB

  • memory/884-21-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/2756-25-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/3380-24-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/5040-1-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/5040-23-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB