Analysis

  • max time kernel
    149s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240704-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240704-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08-07-2024 09:29

General

  • Target

    2bd1fb53eaa50768839e2f0af0f28776_JaffaCakes118.exe

  • Size

    38KB

  • MD5

    2bd1fb53eaa50768839e2f0af0f28776

  • SHA1

    128ed940f232e13e96b03132365ef17c54c5ac2a

  • SHA256

    90062e6119e33002894556095c0a649a4b2b3fffd4a06923d3d85f1009c35b37

  • SHA512

    37e851d8a71cb2885476528c929422f7db73e48b70579eef85f7369e373a3e809a641a91810a524168358e90f9dd07588de287a612aa08447c35f2b2610fdc74

  • SSDEEP

    768:BDRyti+nKpMbrOhvLXcgQqTO/yXeL9+K62aHAAxgjxPvlZ4:bl+nKpUChvLXcgQ4uL4rNHAOKlvlZ4

Malware Config

Signatures

  • Disables service(s) 3 TTPs
  • Stops running service(s) 4 TTPs
  • Deletes itself 1 IoCs
  • Loads dropped DLL 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 3 IoCs

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

  • Drops file in System32 directory 11 IoCs
  • Launches sc.exe 2 IoCs

    Sc.exe is a Windows utlilty to control services on the system.

  • Runs net.exe
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2bd1fb53eaa50768839e2f0af0f28776_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\2bd1fb53eaa50768839e2f0af0f28776_JaffaCakes118.exe"
    1⤵
    • Drops file in System32 directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3588
    • C:\Windows\SysWOW64\net.exe
      net stop cryptsvc
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4288
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop cryptsvc
        3⤵
          PID:2900
      • C:\Windows\SysWOW64\sc.exe
        sc config cryptsvc start= disabled
        2⤵
        • Launches sc.exe
        PID:4324
      • C:\Windows\SysWOW64\sc.exe
        sc delete cryptsvc
        2⤵
        • Launches sc.exe
        PID:3152
      • C:\Windows\SysWOW64\rundll32.exe
        C:\Users\Admin\AppData\Local\Temp\1720453456.dat, ServerMain c:\users\admin\appdata\local\temp\2bd1fb53eaa50768839e2f0af0f28776_jaffacakes118.exe
        2⤵
        • Deletes itself
        • Loads dropped DLL
        PID:2312

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\1720453456.dat

      Filesize

      41KB

      MD5

      a075db812ea594e9c572f2d49e36d513

      SHA1

      f4cbb58baf6eaf3f924c2756cf79978f0cc3618a

      SHA256

      0ba62de9f320d0d22a10739250587762601a2eafb60bed45a160de05eaa3a34d

      SHA512

      cef31e594e4eaa07ee857e9ee996201aca3afd0c67db666cce3d1fc858eae0567eef67394dc4cafaadac90da0b767f877b5b11022eff22dce5589eea2e4fa4dd

    • memory/3588-0-0x0000000000400000-0x0000000000418000-memory.dmp

      Filesize

      96KB

    • memory/3588-12-0x0000000000400000-0x0000000000418000-memory.dmp

      Filesize

      96KB

    • memory/3588-15-0x0000000000400000-0x0000000000418000-memory.dmp

      Filesize

      96KB