Analysis

  • max time kernel
    150s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    10-12-2024 04:52

General

  • Target

    dd161950cedcff2b3d9cd6ccfdc733c9_JaffaCakes118.exe

  • Size

    658KB

  • MD5

    dd161950cedcff2b3d9cd6ccfdc733c9

  • SHA1

    83954fbf59bcf676268873596475189e5fa553c5

  • SHA256

    a06ed2d7d98fc8ae6887bb0245e4d714797a2074226e205e4c509d68a5e4d51f

  • SHA512

    0be589811e806c31b1e672fa3b41d9824683a2b6f92435deca9fba6e0ccc5a1471a2cdf70d5d53136a1d337159ebaa3e2c9c2c164102304d6e3c2ba43b1a1594

  • SSDEEP

    12288:+9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/hB:KZ1xuVVjfFoynPaVBUR8f+kN10EBH

Malware Config

Extracted

Family

darkcomet

Botnet

Test1UC

C2

dast1nga.no-ip.org:1605

Mutex

DC_MUTEX-YN7Z46U

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    a7HexTPYGlvQ

  • 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
  • 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
  • Adds Run key to start application 2 TTPs 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 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
  • Views/modifies file attributes 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\dd161950cedcff2b3d9cd6ccfdc733c9_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\dd161950cedcff2b3d9cd6ccfdc733c9_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:2164
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\dd161950cedcff2b3d9cd6ccfdc733c9_JaffaCakes118.exe" +s +h
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2792
      • C:\Windows\SysWOW64\attrib.exe
        attrib "C:\Users\Admin\AppData\Local\Temp\dd161950cedcff2b3d9cd6ccfdc733c9_JaffaCakes118.exe" +s +h
        3⤵
        • Sets file to hidden
        • System Location Discovery: System Language Discovery
        • Views/modifies file attributes
        PID:2944
    • 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:2892
      • 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:2896
    • C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
      "C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
      2⤵
      • Executes dropped EXE
      • 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:2784
      • C:\Windows\SysWOW64\notepad.exe
        notepad
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2824

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    658KB

    MD5

    dd161950cedcff2b3d9cd6ccfdc733c9

    SHA1

    83954fbf59bcf676268873596475189e5fa553c5

    SHA256

    a06ed2d7d98fc8ae6887bb0245e4d714797a2074226e205e4c509d68a5e4d51f

    SHA512

    0be589811e806c31b1e672fa3b41d9824683a2b6f92435deca9fba6e0ccc5a1471a2cdf70d5d53136a1d337159ebaa3e2c9c2c164102304d6e3c2ba43b1a1594

  • memory/2164-52-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/2164-0-0x00000000003E0000-0x00000000003E1000-memory.dmp

    Filesize

    4KB

  • memory/2784-56-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/2784-58-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/2784-53-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/2784-54-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/2784-55-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/2784-66-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/2784-57-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/2784-65-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/2784-59-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/2784-60-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/2784-61-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/2784-62-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/2784-63-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/2784-64-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/2824-13-0x0000000000080000-0x0000000000081000-memory.dmp

    Filesize

    4KB

  • memory/2824-51-0x0000000000180000-0x0000000000181000-memory.dmp

    Filesize

    4KB