Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    29-10-2024 23:45

General

  • Target

    7d28b6a3977fb89528359197ab7a7e6d_JaffaCakes118.exe

  • Size

    717KB

  • MD5

    7d28b6a3977fb89528359197ab7a7e6d

  • SHA1

    092a58676dec908e7960e3504cf7f5adb873b45b

  • SHA256

    52062426a82e77857f1c0785c412d5b2453a0cb0a7cfc1c0f33748762d469aa6

  • SHA512

    4b866fb01308e810ef9aa04d7c3131ac9c25946a387f4b7744582a27003312eb4fa5828028a0d45759ef2509f1c9d2a4c14affca6bf2dad29e1021e0a0bcd70b

  • SSDEEP

    12288:29zEGJrT9YN4VAbPZWeOF8RHVJiN5+Aho0nLX/XH249uS:Z2TadBWPC7+IAho0nLXeAuS

Malware Config

Extracted

Family

darkcomet

Botnet

Guest10

C2

smth1.zapto.org:1604

Mutex

DC_MUTEX-2CV8R3D

Attributes
  • InstallPath

    MSDCSC\msdcss.exe

  • gencode

    iUkSoqq15Y7a

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    MicroUpdate

Signatures

  • Darkcomet

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

  • Darkcomet family
  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Modifies firewall policy service 3 TTPs 3 IoCs
  • Drops file in Drivers directory 1 IoCs
  • Sets file to hidden 1 TTPs 2 IoCs

    Modifies file attributes to stop it showing in Explorer etc.

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 10 IoCs

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

  • Suspicious use of AdjustPrivilegeToken 46 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • Views/modifies file attributes 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7d28b6a3977fb89528359197ab7a7e6d_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\7d28b6a3977fb89528359197ab7a7e6d_JaffaCakes118.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2212
    • C:\Users\Admin\AppData\Local\Temp\7d28b6a3977fb89528359197ab7a7e6d_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\7d28b6a3977fb89528359197ab7a7e6d_JaffaCakes118.exe"
      2⤵
      • Modifies WinLogon for persistence
      • Drops file in Drivers directory
      • Loads dropped DLL
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2112
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\7d28b6a3977fb89528359197ab7a7e6d_JaffaCakes118.exe" +s +h
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2740
        • C:\Windows\SysWOW64\attrib.exe
          attrib "C:\Users\Admin\AppData\Local\Temp\7d28b6a3977fb89528359197ab7a7e6d_JaffaCakes118.exe" +s +h
          4⤵
          • Sets file to hidden
          • System Location Discovery: System Language Discovery
          • Views/modifies file attributes
          PID:2856
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2280
        • C:\Windows\SysWOW64\attrib.exe
          attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
          4⤵
          • Sets file to hidden
          • System Location Discovery: System Language Discovery
          • Views/modifies file attributes
          PID:2208
      • C:\Windows\SysWOW64\notepad.exe
        notepad
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2704
      • C:\Users\Admin\Documents\MSDCSC\msdcss.exe
        "C:\Users\Admin\Documents\MSDCSC\msdcss.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2976
        • C:\Users\Admin\Documents\MSDCSC\msdcss.exe
          "C:\Users\Admin\Documents\MSDCSC\msdcss.exe"
          4⤵
          • Modifies firewall policy service
          • Executes dropped EXE
          • Adds Run key to start application
          • System Location Discovery: System Language Discovery
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          PID:2432
          • C:\Windows\SysWOW64\notepad.exe
            notepad
            5⤵
            • System Location Discovery: System Language Discovery
            PID:2696

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • \Users\Admin\Documents\MSDCSC\msdcss.exe

    Filesize

    717KB

    MD5

    7d28b6a3977fb89528359197ab7a7e6d

    SHA1

    092a58676dec908e7960e3504cf7f5adb873b45b

    SHA256

    52062426a82e77857f1c0785c412d5b2453a0cb0a7cfc1c0f33748762d469aa6

    SHA512

    4b866fb01308e810ef9aa04d7c3131ac9c25946a387f4b7744582a27003312eb4fa5828028a0d45759ef2509f1c9d2a4c14affca6bf2dad29e1021e0a0bcd70b

  • memory/2112-25-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/2112-3-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/2112-24-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/2112-23-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/2112-19-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2112-17-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/2112-16-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/2112-13-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/2112-11-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/2112-7-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/2112-22-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/2112-58-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/2112-9-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/2112-5-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/2112-53-0x0000000003EF0000-0x0000000003F05000-memory.dmp

    Filesize

    84KB

  • memory/2112-21-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/2212-55-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/2212-0-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/2432-80-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/2432-81-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/2704-30-0x0000000000080000-0x0000000000081000-memory.dmp

    Filesize

    4KB

  • memory/2704-45-0x0000000000190000-0x0000000000191000-memory.dmp

    Filesize

    4KB

  • memory/2976-123-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB