Analysis

  • max time kernel
    142s
  • max time network
    131s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22-10-2024 02:50

General

  • Target

    688e981a04241a918aac97054357008b_JaffaCakes118.exe

  • Size

    1.4MB

  • MD5

    688e981a04241a918aac97054357008b

  • SHA1

    a144325ed430fbfb70d32e4830594dc9470af5c2

  • SHA256

    4a01ae30245547e732dee65c67e8920e592beb370aeac21cba2f3aee44cbfbda

  • SHA512

    277b9bf9c73d3e56cdc3299d89627438ade20612bd1c2367666682cd3648051a5154859d47e0c824f2b172b7066630c82128d87527e582c6907fc0e06cf3d382

  • SSDEEP

    24576:YeHe8fAIwgw4lAAx9BhmroAGKmErF5HTMHHkeDz4GsiiSVTcon/lwNy9OIUcYH2u:YeHe8fAIwgw4lAAx9BhmnmAzEkoEondY

Malware Config

Signatures

  • Darkcomet

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

  • 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.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 4 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Drops file in System32 directory 2 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 4 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 11 IoCs

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

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • NSIS installer 1 IoCs
  • Modifies registry class 20 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 24 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 41 IoCs
  • Views/modifies file attributes 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\688e981a04241a918aac97054357008b_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\688e981a04241a918aac97054357008b_JaffaCakes118.exe"
    1⤵
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3724
    • C:\archivoMZ
      \archivoMZ
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      PID:4876
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\RoamingFirewall.bat
      2⤵
      • System Location Discovery: System Language Discovery
      PID:4924
    • C:\Users\Admin\AppData\Local\Temp\688e981a04241a918aac97054357008b_JaffaCakes118.exe
      C:\Users\Admin\AppData\Local\Temp\688e981a04241a918aac97054357008b_JaffaCakes118.exe
      2⤵
      • Modifies WinLogon for persistence
      • Checks computer location settings
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1348
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\688e981a04241a918aac97054357008b_JaffaCakes118.exe" +s +h
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2632
        • C:\Windows\SysWOW64\attrib.exe
          attrib "C:\Users\Admin\AppData\Local\Temp\688e981a04241a918aac97054357008b_JaffaCakes118.exe" +s +h
          4⤵
          • Sets file to hidden
          • System Location Discovery: System Language Discovery
          • Views/modifies file attributes
          PID:3424
      • 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:3832
        • 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:3132
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /k ping 127.0.0.1 -n 4 && del "C:\Users\Admin\AppData\Local\Temp\688e981a04241a918aac97054357008b_JaffaCakes118.exe"
        3⤵
        • System Location Discovery: System Language Discovery
        • System Network Configuration Discovery: Internet Connection Discovery
        • Suspicious use of WriteProcessMemory
        PID:2604
        • C:\Windows\SysWOW64\PING.EXE
          ping 127.0.0.1 -n 4
          4⤵
          • System Location Discovery: System Language Discovery
          • System Network Configuration Discovery: Internet Connection Discovery
          • Runs ping.exe
          PID:3732
      • C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
        "C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:4288

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\nsbA337.tmp\InstallOptions.dll

    Filesize

    12KB

    MD5

    9aff00ec14e6cb71a13451011c580077

    SHA1

    5972140e4a0addb9eac685fe6037da7479f23ecf

    SHA256

    cc8145683ad8fd77bd5cca193e84188e40d6d03a0a0d1d00e2bdbef91be96bb3

    SHA512

    311abd4e9927c1424d794ba401f3935ad3b108a2124e58e0d29aa946514c7a1d62b9b08b013699f4f90796bdfb6c07211daddbb521c1d20ccee771f6ea43b110

  • C:\Users\Admin\AppData\Local\Temp\nsbA337.tmp\UserInfo.dll

    Filesize

    4KB

    MD5

    419d642fe3436fda8bb22eea9c37a6ca

    SHA1

    c1644131b880c6e03f14de3c79efd27093a77908

    SHA256

    25c4f65b02eca4ad897d7a623b3ca1290bac836e98ab5ee5f6c527dfb6a41dd7

    SHA512

    29df088e3b5189efd6fbeebc2f23c5850303d40fe5331cd336bb852d986f9ab66f7bcd963ebf8c4e4eea7d49a6590027490d651a3e4781024c7983a2c456a337

  • C:\Users\Admin\AppData\Local\Temp\nsbA337.tmp\ioSpecial.ini

    Filesize

    711B

    MD5

    0efe45ba8308e977ba169b483db8afb7

    SHA1

    86601f5aa384c4d0bbe17d1b8c2a519d3746f7db

    SHA256

    ec1a980c8e19bfe81567fd3b3cb92345a4a49475393c8f49d51d2cd1cc833d76

    SHA512

    962cd95a6ff0e04777c022ee4b9a58fddd154c16a7838935c6c061a7d8b34b5f3a5fd4f58a31135ca4aa5ea0d11e1a6158e5950f05fbbbe1205f318cab6b8e89

  • C:\Users\Admin\AppData\RoamingFirewall.bat

    Filesize

    16B

    MD5

    ad8f534ea726ddec58a390dee334362f

    SHA1

    847339c3a250e6910602a8570156ac4559ef90c0

    SHA256

    8a469c68715e6cda6c891a6c372b1560e17b9f8756e97f321a9d966986f960da

    SHA512

    6eca7a37fedbd0c6ccc5e0ccec9e48641cd7d4bd6d2a1979dc0fb8b6950c264db48291f68b8cc50c987b98f551304e114c1ca916b1f88144e8fa6d50cf939a92

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

    Filesize

    1.4MB

    MD5

    688e981a04241a918aac97054357008b

    SHA1

    a144325ed430fbfb70d32e4830594dc9470af5c2

    SHA256

    4a01ae30245547e732dee65c67e8920e592beb370aeac21cba2f3aee44cbfbda

    SHA512

    277b9bf9c73d3e56cdc3299d89627438ade20612bd1c2367666682cd3648051a5154859d47e0c824f2b172b7066630c82128d87527e582c6907fc0e06cf3d382

  • C:\Windows\SysWOW64\CoreAAC.ax

    Filesize

    416KB

    MD5

    980d3842c1b0114f53e783577a6fe7ac

    SHA1

    ea09de5cc6901d1ef72501c5dac782e5e4b7507c

    SHA256

    33581d2d6eb6700609d10581e2b6bcafe231e492c6f5b328751df9d0db5d581b

    SHA512

    213bcd781a1aeed258adc9c2465b008b1f7ff5e765929aac5fc0a85bc9688952bfe9e7a194c02ba4c96804c599d753df944583e035f3e08776f9b5f821b43e50

  • C:\archivoMZ

    Filesize

    252KB

    MD5

    1a216df3e4a5dc41f65640f3d2d84efe

    SHA1

    f764a312a18957282d88e30b54a887a4ca7e507d

    SHA256

    3b9fa35864192f51b38beeffdb62d4999033f0f0d382f2dfeab9d450980e370d

    SHA512

    f86a3521beff1ec2e24d2afa930dcbcc182d9a061f2d9265e68e4408c1c127efd259223716675e92aab23d1bceb61e032286453b047eff4e64ad4d696942f5ab

  • memory/1348-101-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/1348-173-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/1348-107-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/1348-105-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/1348-103-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/1348-102-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/3724-2-0x0000000000400000-0x0000000000665000-memory.dmp

    Filesize

    2.4MB

  • memory/3724-106-0x0000000000401000-0x000000000040B000-memory.dmp

    Filesize

    40KB

  • memory/3724-4-0x0000000000401000-0x000000000040B000-memory.dmp

    Filesize

    40KB

  • memory/3724-6-0x0000000000400000-0x0000000000665000-memory.dmp

    Filesize

    2.4MB

  • memory/3724-1-0x0000000000400000-0x0000000000665000-memory.dmp

    Filesize

    2.4MB

  • memory/3724-5-0x0000000000400000-0x0000000000665000-memory.dmp

    Filesize

    2.4MB

  • memory/3724-0-0x0000000000400000-0x0000000000665000-memory.dmp

    Filesize

    2.4MB

  • memory/3724-7-0x0000000000400000-0x0000000000665000-memory.dmp

    Filesize

    2.4MB

  • memory/3724-104-0x0000000000400000-0x0000000000665000-memory.dmp

    Filesize

    2.4MB

  • memory/3724-3-0x0000000000400000-0x0000000000665000-memory.dmp

    Filesize

    2.4MB

  • memory/3724-10-0x0000000000400000-0x0000000000665000-memory.dmp

    Filesize

    2.4MB

  • memory/4288-174-0x0000000000400000-0x0000000000665000-memory.dmp

    Filesize

    2.4MB

  • memory/4288-169-0x0000000000400000-0x0000000000665000-memory.dmp

    Filesize

    2.4MB

  • memory/4288-175-0x0000000000400000-0x0000000000665000-memory.dmp

    Filesize

    2.4MB

  • memory/4288-179-0x0000000000400000-0x0000000000665000-memory.dmp

    Filesize

    2.4MB

  • memory/4288-172-0x0000000000400000-0x0000000000665000-memory.dmp

    Filesize

    2.4MB