Analysis

  • max time kernel
    149s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240705-en
  • resource tags

    arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
  • submitted
    09-08-2024 21:46

General

  • Target

    83aaee69716dda7b17faa2d36ea38822_JaffaCakes118.exe

  • Size

    912KB

  • MD5

    83aaee69716dda7b17faa2d36ea38822

  • SHA1

    12ba999ca951b9f2154ab388039c20e364e56b25

  • SHA256

    6547d234fd9c2d92380a8c60eaa0e30b0c253b20870d3eaafc371f51bd46303a

  • SHA512

    cff941de4e85adcdf62e3088c358a374b4f2ac5219a438663ebd7e84b1c0693532cda54ebae9b6f687ae582cea2c727f56be0744232f25f041cfeb807a2c584b

  • SSDEEP

    12288:m8UaT9XY2siA0bMG09xD7I3Gg8ecgVvfBoCDBOQQYbVXpuy1r/re:zUKoN0bUxgGa/pfBHDb+y1L

Malware Config

Signatures

  • Darkcomet

    DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Modifies firewall policy service 3 TTPs 6 IoCs
  • Modifies security service 2 TTPs 2 IoCs
  • Windows security bypass 2 TTPs 4 IoCs
  • Sets file to hidden 1 TTPs 2 IoCs

    Modifies file attributes to stop it showing in Explorer etc.

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • UPX packed file 5 IoCs

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

  • Windows security modification 2 TTPs 2 IoCs
  • Adds Run key to start application 2 TTPs 3 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 7 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 26 IoCs
  • Views/modifies file attributes 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\83aaee69716dda7b17faa2d36ea38822_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\83aaee69716dda7b17faa2d36ea38822_JaffaCakes118.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Loads dropped DLL
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3032
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\83aaee69716dda7b17faa2d36ea38822_JaffaCakes118.exe" +s +h
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1312
      • C:\Windows\SysWOW64\attrib.exe
        attrib "C:\Users\Admin\AppData\Local\Temp\83aaee69716dda7b17faa2d36ea38822_JaffaCakes118.exe" +s +h
        3⤵
        • Sets file to hidden
        • System Location Discovery: System Language Discovery
        • Views/modifies file attributes
        PID:1940
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2444
      • C:\Windows\SysWOW64\attrib.exe
        attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
        3⤵
        • Sets file to hidden
        • System Location Discovery: System Language Discovery
        • Views/modifies file attributes
        PID:1700
    • C:\MSDCSC\msdcsc.exe
      "C:\MSDCSC\msdcsc.exe"
      2⤵
      • Modifies firewall policy service
      • Modifies security service
      • Windows security bypass
      • Executes dropped EXE
      • Windows security modification
      • Adds Run key to start application
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2672
      • C:\Program Files (x86)\Internet Explorer\iexplore.exe
        "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
        3⤵
        • Modifies firewall policy service
        • Modifies security service
        • Windows security bypass
        • Adds Run key to start application
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:2696

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • \MSDCSC\msdcsc.exe

    Filesize

    912KB

    MD5

    83aaee69716dda7b17faa2d36ea38822

    SHA1

    12ba999ca951b9f2154ab388039c20e364e56b25

    SHA256

    6547d234fd9c2d92380a8c60eaa0e30b0c253b20870d3eaafc371f51bd46303a

    SHA512

    cff941de4e85adcdf62e3088c358a374b4f2ac5219a438663ebd7e84b1c0693532cda54ebae9b6f687ae582cea2c727f56be0744232f25f041cfeb807a2c584b

  • memory/2672-16-0x0000000000400000-0x00000000004E6000-memory.dmp

    Filesize

    920KB

  • memory/3032-0-0x0000000000400000-0x00000000004E6000-memory.dmp

    Filesize

    920KB

  • memory/3032-1-0x0000000000260000-0x0000000000261000-memory.dmp

    Filesize

    4KB

  • memory/3032-7-0x00000000042A0000-0x0000000004386000-memory.dmp

    Filesize

    920KB

  • memory/3032-13-0x0000000000400000-0x00000000004E6000-memory.dmp

    Filesize

    920KB