Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    29-11-2024 05:50

General

  • Target

    af492ad9898a50b7cc80c200f33878c3_JaffaCakes118.exe

  • Size

    758KB

  • MD5

    af492ad9898a50b7cc80c200f33878c3

  • SHA1

    290431a139b869b3645c842b9efe0ee70be724b1

  • SHA256

    ec4d2662a6d0c7bf402622ea0ed0782e0aeadf93cf71738c2b8a3498fe97dd8b

  • SHA512

    94e4cdbc6d1cdd2a69be624e92c09f011a58e61d9076b779eb41a5ce4c5da9209b0b3bc7a9398db7d767d6c2ccb83969da291db085979516daf183257994246a

  • SSDEEP

    12288:LXhpvNWw276S/DuoeFcfbmiJ99VPhYR5MTSHvLenELrWv1lZw4JuMkMh/fy452Uw:TnAw2WWeFcfbP9VPSPMTSPL/rWvzq4Jg

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

erpis.no-ip.org:1605

Mutex

DC_MUTEX-F54S21D

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    3UeH82jUifPd

  • install

    true

  • offline_keylogger

    true

  • persistence

    false

  • 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
  • Modifies security service 2 TTPs 1 IoCs
  • Windows security bypass 2 TTPs 2 IoCs
  • Disables RegEdit via registry modification 1 IoCs
  • Disables Task Manager via registry modification
  • 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
  • Windows security modification 2 TTPs 2 IoCs
  • Adds Run key to start application 2 TTPs 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 46 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 43 IoCs
  • System policy modification 1 TTPs 3 IoCs
  • Views/modifies file attributes 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\af492ad9898a50b7cc80c200f33878c3_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\af492ad9898a50b7cc80c200f33878c3_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:2828
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\af492ad9898a50b7cc80c200f33878c3_JaffaCakes118.exe" +s +h
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2724
      • C:\Windows\SysWOW64\attrib.exe
        attrib "C:\Users\Admin\AppData\Local\Temp\af492ad9898a50b7cc80c200f33878c3_JaffaCakes118.exe" +s +h
        3⤵
        • Sets file to hidden
        • System Location Discovery: System Language Discovery
        • Views/modifies file attributes
        PID:2592
    • 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:2576
      • 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:2932
    • C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
      "C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
      2⤵
      • Modifies firewall policy service
      • Modifies security service
      • Windows security bypass
      • Disables RegEdit via registry modification
      • Executes dropped EXE
      • Windows security modification
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      • System policy modification
      PID:2824
      • C:\Windows\SysWOW64\notepad.exe
        notepad
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2736

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    758KB

    MD5

    af492ad9898a50b7cc80c200f33878c3

    SHA1

    290431a139b869b3645c842b9efe0ee70be724b1

    SHA256

    ec4d2662a6d0c7bf402622ea0ed0782e0aeadf93cf71738c2b8a3498fe97dd8b

    SHA512

    94e4cdbc6d1cdd2a69be624e92c09f011a58e61d9076b779eb41a5ce4c5da9209b0b3bc7a9398db7d767d6c2ccb83969da291db085979516daf183257994246a

  • memory/2736-13-0x0000000000080000-0x0000000000081000-memory.dmp

    Filesize

    4KB

  • memory/2736-51-0x0000000000270000-0x0000000000271000-memory.dmp

    Filesize

    4KB

  • memory/2824-56-0x0000000000400000-0x00000000004CD000-memory.dmp

    Filesize

    820KB

  • memory/2824-58-0x0000000000400000-0x00000000004CD000-memory.dmp

    Filesize

    820KB

  • memory/2824-65-0x0000000000400000-0x00000000004CD000-memory.dmp

    Filesize

    820KB

  • memory/2824-52-0x0000000000400000-0x00000000004CD000-memory.dmp

    Filesize

    820KB

  • memory/2824-53-0x0000000000400000-0x00000000004CD000-memory.dmp

    Filesize

    820KB

  • memory/2824-54-0x0000000000400000-0x00000000004CD000-memory.dmp

    Filesize

    820KB

  • memory/2824-55-0x0000000000400000-0x00000000004CD000-memory.dmp

    Filesize

    820KB

  • memory/2824-64-0x0000000000400000-0x00000000004CD000-memory.dmp

    Filesize

    820KB

  • memory/2824-57-0x0000000000400000-0x00000000004CD000-memory.dmp

    Filesize

    820KB

  • memory/2824-12-0x00000000002E0000-0x00000000002E1000-memory.dmp

    Filesize

    4KB

  • memory/2824-59-0x0000000000400000-0x00000000004CD000-memory.dmp

    Filesize

    820KB

  • memory/2824-60-0x0000000000400000-0x00000000004CD000-memory.dmp

    Filesize

    820KB

  • memory/2824-61-0x0000000000400000-0x00000000004CD000-memory.dmp

    Filesize

    820KB

  • memory/2824-62-0x0000000000400000-0x00000000004CD000-memory.dmp

    Filesize

    820KB

  • memory/2824-63-0x0000000000400000-0x00000000004CD000-memory.dmp

    Filesize

    820KB

  • memory/2828-0-0x0000000000270000-0x0000000000271000-memory.dmp

    Filesize

    4KB

  • memory/2828-11-0x0000000000400000-0x00000000004CD000-memory.dmp

    Filesize

    820KB