Analysis

  • max time kernel
    149s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240611-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28-06-2024 04:37

General

  • Target

    18cc65990e94df38c053d6c0d436e914_JaffaCakes118.exe

  • Size

    360KB

  • MD5

    18cc65990e94df38c053d6c0d436e914

  • SHA1

    687ce348730a459d1400cdb5e9d7883c7c88ba9d

  • SHA256

    74cd7d777f135b0ba053a1d3646400f8de414bd9763945204d1f544c605ba3ff

  • SHA512

    6b9064086fadc9decaff20393c10df129345ce3c357332976dd3db445324a3cfceeead3df10db61be84a49580d7dba4e0cc9519b546c49bba77002109f023a1f

  • SSDEEP

    6144:PE8p3s56FYIfUPq/DNAs0TJ3AkpRa5nOdaXzM6CRY0cehlj5qOBCHjEoqKc7W0uX:c8p3s6UeyrNFpkpXAC0co5qECHMwf

Malware Config

Signatures

  • ACProtect 1.3x - 1.4x DLL software 1 IoCs

    Detects file using ACProtect software.

  • 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 5 IoCs

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

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Drops file in System32 directory 2 IoCs
  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\18cc65990e94df38c053d6c0d436e914_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\18cc65990e94df38c053d6c0d436e914_JaffaCakes118.exe"
    1⤵
    • Adds Run key to start application
    • Drops file in System32 directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:3624
    • C:\Windows\SysWOW64\rundll32.exe
      C:\Windows\SysWOW64\rundll32.exe msivyh32.dll,xuqdRTGsdwo
      2⤵
      • Loads dropped DLL
      PID:1688
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3624 -s 664
      2⤵
      • Program crash
      PID:5096
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3624 -ip 3624
    1⤵
      PID:1316

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Windows\SysWOW64\msivyh32.dll

      Filesize

      175KB

      MD5

      dfb55c2998bfe93c298f1eceb824bedc

      SHA1

      bbc6773b32377a294e96191329a7ba8585f2624e

      SHA256

      9e92f8ca6b489b3b5bb29daa0b3fa574f1a520b9a43ad6b83179846a8746e15e

      SHA512

      5581a04c7519cd594f3c49acc0e86bb6696d3f1287ed56a5f6a571b3e7e0f33a23d100b37582bb278203fcef2130462929829a6b44422e0e3b89d6b57edf0472

    • memory/1688-8-0x0000000010000000-0x0000000010087000-memory.dmp

      Filesize

      540KB

    • memory/1688-12-0x0000000010000000-0x0000000010087000-memory.dmp

      Filesize

      540KB

    • memory/3624-0-0x0000000000400000-0x0000000000467000-memory.dmp

      Filesize

      412KB

    • memory/3624-1-0x00000000021A0000-0x00000000021FA000-memory.dmp

      Filesize

      360KB

    • memory/3624-3-0x0000000002290000-0x0000000002317000-memory.dmp

      Filesize

      540KB

    • memory/3624-2-0x0000000002290000-0x0000000002317000-memory.dmp

      Filesize

      540KB

    • memory/3624-5-0x0000000002290000-0x0000000002317000-memory.dmp

      Filesize

      540KB

    • memory/3624-10-0x0000000000400000-0x0000000000467000-memory.dmp

      Filesize

      412KB

    • memory/3624-11-0x00000000021A0000-0x00000000021FA000-memory.dmp

      Filesize

      360KB