Analysis

  • max time kernel
    150s
  • max time network
    126s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    25-11-2024 03:16

General

  • Target

    98e2f247f5f606162159cb11765232ab_JaffaCakes118.exe

  • Size

    758KB

  • MD5

    98e2f247f5f606162159cb11765232ab

  • SHA1

    11430901adf7af432541d0591d311d793822ad25

  • SHA256

    dee54d553a9248f18e1597173d2141c0dbc8e3a85d3c5aba6d79d6200eec6b1f

  • SHA512

    84d5a46400538017bb3e2c821b75533f0fc2180be9c19ab2ceb9fd14f561c25e1e24576474b33afb64568b4e1ab70600011101c94fb1c1855ba510a57d8ebd7c

  • SSDEEP

    12288:ZXhpvNWw276S/DuoeFcfbmiJ99VPhYR5MTSHvLenELrWv1lZw4JuMkMh/fy452Ud:lnAw2WWeFcfbP9VPSPMTSPL/rWvzq4Jt

Malware Config

Extracted

Family

darkcomet

Botnet

Machine

C2

8956584.servegame.com:1604

Mutex

DC_MUTEX-TU3948U

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    FY45WQHSmbHL

  • 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 security service 2 TTPs 1 IoCs
  • Windows security bypass 2 TTPs 1 IoCs
  • Sets file to hidden 1 TTPs 2 IoCs

    Modifies file attributes to stop it showing in Explorer etc.

  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Windows security modification 2 TTPs 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Drops file in Windows directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 8 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 46 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 61 IoCs
  • Views/modifies file attributes 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\98e2f247f5f606162159cb11765232ab_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\98e2f247f5f606162159cb11765232ab_JaffaCakes118.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Loads dropped DLL
    • Adds Run key to start application
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:844
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\98e2f247f5f606162159cb11765232ab_JaffaCakes118.exe" +s +h
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2696
      • C:\Windows\SysWOW64\attrib.exe
        attrib "C:\Users\Admin\AppData\Local\Temp\98e2f247f5f606162159cb11765232ab_JaffaCakes118.exe" +s +h
        3⤵
        • Sets file to hidden
        • System Location Discovery: System Language Discovery
        • Views/modifies file attributes
        PID:2864
    • 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:2740
      • 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:2832
    • C:\Windows\SysWOW64\notepad.exe
      notepad
      2⤵
      • Deletes itself
      • System Location Discovery: System Language Discovery
      PID:2804
    • C:\Windows\MSDCSC\msdcsc.exe
      "C:\Windows\MSDCSC\msdcsc.exe"
      2⤵
      • Modifies security service
      • Windows security bypass
      • Executes dropped EXE
      • Windows security modification
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2588
      • C:\Windows\SysWOW64\notepad.exe
        notepad
        3⤵
        • System Location Discovery: System Language Discovery
        PID:3060

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • \Windows\MSDCSC\msdcsc.exe

    Filesize

    758KB

    MD5

    98e2f247f5f606162159cb11765232ab

    SHA1

    11430901adf7af432541d0591d311d793822ad25

    SHA256

    dee54d553a9248f18e1597173d2141c0dbc8e3a85d3c5aba6d79d6200eec6b1f

    SHA512

    84d5a46400538017bb3e2c821b75533f0fc2180be9c19ab2ceb9fd14f561c25e1e24576474b33afb64568b4e1ab70600011101c94fb1c1855ba510a57d8ebd7c

  • memory/844-0-0x00000000001D0000-0x00000000001D1000-memory.dmp

    Filesize

    4KB

  • memory/844-27-0x0000000000400000-0x00000000004CD000-memory.dmp

    Filesize

    820KB

  • memory/2588-69-0x0000000000400000-0x00000000004CD000-memory.dmp

    Filesize

    820KB

  • memory/2588-70-0x0000000000400000-0x00000000004CD000-memory.dmp

    Filesize

    820KB

  • memory/2588-71-0x0000000000400000-0x00000000004CD000-memory.dmp

    Filesize

    820KB

  • memory/2588-72-0x0000000000400000-0x00000000004CD000-memory.dmp

    Filesize

    820KB

  • memory/2588-73-0x0000000000400000-0x00000000004CD000-memory.dmp

    Filesize

    820KB

  • memory/2588-74-0x0000000000400000-0x00000000004CD000-memory.dmp

    Filesize

    820KB

  • memory/2588-75-0x0000000000400000-0x00000000004CD000-memory.dmp

    Filesize

    820KB

  • memory/2804-19-0x0000000000190000-0x0000000000191000-memory.dmp

    Filesize

    4KB

  • memory/2804-4-0x0000000000080000-0x0000000000081000-memory.dmp

    Filesize

    4KB

  • memory/3060-67-0x0000000000220000-0x0000000000221000-memory.dmp

    Filesize

    4KB