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Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240412-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21/04/2024, 04:08

General

  • Target

    fe65239d9a26d09efe021f0a11a9ff3f_JaffaCakes118.exe

  • Size

    50KB

  • MD5

    fe65239d9a26d09efe021f0a11a9ff3f

  • SHA1

    be3ea504dc7da497466707dcccedbe1793cecad1

  • SHA256

    0a4d226989743aff380be3fa9590d729b7be1925aefd934894d6c36c9845c6d4

  • SHA512

    e198e224e507151878aadf2ae2c315b510d2d71d0cb0a1f6a86819d486e7acd8e10b6997ac22824b20c903e6a3afaf8f0b92ae930935c0986a9b035e5256169a

  • SSDEEP

    768:X8Q2ZDX3LKew369lp2z3Sd4baFXLjwP/Tgj93b8NIom46+IEAp+mTWtl6qF6:s9Z3KcR4mjD9r8226+0WTU

Malware Config

Signatures

  • Executes dropped EXE 2 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • UPX packed file 5 IoCs

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

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Drops file in Windows directory 2 IoCs
  • Modifies system certificate store 2 TTPs 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\fe65239d9a26d09efe021f0a11a9ff3f_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\fe65239d9a26d09efe021f0a11a9ff3f_JaffaCakes118.exe"
    1⤵
    • Adds Run key to start application
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4448
    • C:\Users\Admin\AppData\Local\Temp\KaJlJaNfGiMjqCL.exe
      C:\Users\Admin\AppData\Local\Temp\KaJlJaNfGiMjqCL.exe
      2⤵
      • Executes dropped EXE
      • Modifies system certificate store
      PID:2596
    • C:\Windows\CTS.exe
      "C:\Windows\CTS.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Drops file in Windows directory
      • Suspicious use of AdjustPrivilegeToken
      PID:2904

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\Office\16.0\msoia.exe_Rules.xml

    Filesize

    36KB

    MD5

    d04295b0778059e1b6f34cddcdf36b5d

    SHA1

    970a2943e0327fc26aa23c69e55c163d10880e71

    SHA256

    f5ada14a311d919946644eb0fe09112635dfe32511f0382e2c0a7d41218c78de

    SHA512

    6bc000166302f6b8e7bcbeb43863c389ecc29bd529c975b38cb76ccede614b407cd007c412b39068ef9ca2304579582e5dd12951caa031a78bbd09ed35b7f97b

  • C:\Users\Admin\AppData\Local\Temp\KaJlJaNfGiMjqCL.exe

    Filesize

    15KB

    MD5

    92f9de5aaf4021b73961e14303746f95

    SHA1

    331b792e347ebaf6b6b4c9ac65d742061e1a9f0a

    SHA256

    13c921999e5ff273007a610a8521bbc77d884b41d9cbbd41e045b3497909659c

    SHA512

    314749d46a3584213e55c7030e087e06f1e5bc5fbb8f99210a4e3014b9f44f3be7e791f48c570dd0abaf73584322ebb6be0d2ea5dbbfe343245cced22b172225

  • C:\Windows\CTS.exe

    Filesize

    35KB

    MD5

    93e5f18caebd8d4a2c893e40e5f38232

    SHA1

    fd55c4e6bcd108bce60ea719c06dc9c4d0adafa6

    SHA256

    a66c4b98becac2f69cb107cd087d7a2ca9ef511bc3b83367b1f440f11dd159a8

    SHA512

    986583610d27caae2080834301d072557c5d2c85e33f0d19ab1245d7eae8db146397461572ddb3d491be16f3af210720d54267dac838fdad8fe34afa3d6b7f54

  • memory/2596-17-0x00000000753B0000-0x0000000075961000-memory.dmp

    Filesize

    5.7MB

  • memory/2596-21-0x00000000753B0000-0x0000000075961000-memory.dmp

    Filesize

    5.7MB

  • memory/2596-23-0x0000000001460000-0x0000000001470000-memory.dmp

    Filesize

    64KB

  • memory/2596-53-0x00000000753B0000-0x0000000075961000-memory.dmp

    Filesize

    5.7MB

  • memory/2904-10-0x0000000000170000-0x0000000000187000-memory.dmp

    Filesize

    92KB

  • memory/4448-0-0x0000000000980000-0x0000000000997000-memory.dmp

    Filesize

    92KB

  • memory/4448-7-0x0000000000980000-0x0000000000997000-memory.dmp

    Filesize

    92KB