Analysis

  • max time kernel
    150s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07/04/2024, 22:29

General

  • Target
    e600a444b6b287aba321c49928262bae_JaffaCakes118.exe
  • Size 35KB
  • Sample240407-2edxtagd3v
  • SHA256 52bf046e2e5171d54507b2882cf719894126838843bc105e7cea805f4ca56383
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Executes dropped EXE 1 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 7 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
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e600a444b6b287aba321c49928262bae_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\e600a444b6b287aba321c49928262bae_JaffaCakes118.exe"
    1⤵
    • Adds Run key to start application
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2760
    • 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:3192

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        excel.exe_Rules.xml

        • Path C:\Users\Admin\AppData\Local\Microsoft\Office\16.0\excel.exe_Rules.xml
        • Size 358KB
        • SHA256 8e0f0cc6ac03e4a87f79881708454156d3d0762f1a6f0444d38320bd0489000c
        • MD5 SHA1 SHA512 SSDEEP

        8iVgfxC2zBUecnw.exe

        • Path C:\Users\Admin\AppData\Local\Temp\8iVgfxC2zBUecnw.exe
        • Size 35KB
        • SHA256 c4606a4863eab970f11d691dc3d2ce87d38b328f9b5588919e8807389bbc9e3d
        • MD5 SHA1 SHA512 SSDEEP

        CTS.exe

        • Path C:\Windows\CTS.exe
        • Size 35KB
        • SHA256 a66c4b98becac2f69cb107cd087d7a2ca9ef511bc3b83367b1f440f11dd159a8
        • MD5 SHA1 SHA512 SSDEEP

        memory/2760-0-0x0000000000230000-0x0000000000247000-memory.dmp

        memory/2760-7-0x0000000000230000-0x0000000000247000-memory.dmp

        memory/3192-8-0x0000000000070000-0x0000000000087000-memory.dmp

        memory/3192-32-0x0000000000070000-0x0000000000087000-memory.dmp