Analysis

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

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    05-12-2024 14:25

General

  • Target

    c8231e2a75c651ca0c36a29cf86cff79_JaffaCakes118.exe

  • Size

    1.3MB

  • MD5

    c8231e2a75c651ca0c36a29cf86cff79

  • SHA1

    b24ec425ac450c0762a4d35fe1dfe0991e2bd9b8

  • SHA256

    1f3cb0faf63aa2f73f2ba40c267546fb1aefee458ded0d0a9d76b4f0670e0d14

  • SHA512

    9bc174e9356a643ef259bf0376ca814133948fd6b3b98e177aa6a19ddfca6ddc4a469563fd60d294839d42ffbffd5fd8643c705c91bd84284282667abfcc39b6

  • SSDEEP

    24576:WC6j62qAA3p8tnAQggkN471Bp+SEj7T1tOKHudzJXtgruy0lv:WjyD3XEu47lPEj7bFUTgKyw

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

127.0.0.1:1604

93.76.25.160:1604

Mutex

DC_MUTEX-AMH04UV

Attributes
  • InstallPath

    WindowsDefencer/Update.exe

  • gencode

    tLtGfaegvvj1

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    Windows Defencer

Signatures

  • Darkcomet

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

  • Darkcomet family
  • Modifies WinLogon for persistence 2 TTPs 2 IoCs
  • Modifies security service 2 TTPs 2 IoCs
  • Windows security bypass 2 TTPs 4 IoCs
  • Disables RegEdit via registry modification 2 IoCs
  • Sets file to hidden 1 TTPs 4 IoCs

    Modifies file attributes to stop it showing in Explorer etc.

  • Executes dropped EXE 4 IoCs
  • Loads dropped DLL 8 IoCs
  • Windows security modification 2 TTPs 4 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Drops file in System32 directory 8 IoCs
  • UPX packed file 3 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 15 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 2 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • System policy modification 1 TTPs 6 IoCs
  • Views/modifies file attributes 1 TTPs 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c8231e2a75c651ca0c36a29cf86cff79_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\c8231e2a75c651ca0c36a29cf86cff79_JaffaCakes118.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2488
    • C:\Users\Admin\AppData\Local\Temp\Spambot.exe
      "C:\Users\Admin\AppData\Local\Temp\Spambot.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:2060
    • C:\Users\Admin\AppData\Local\Temp\DOTA 2 HAK.exe
      "C:\Users\Admin\AppData\Local\Temp\DOTA 2 HAK.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2176
      • C:\Users\Admin\AppData\Local\Temp\ìàçàôàêà.exe
        "C:\Users\Admin\AppData\Local\Temp\ìàçàôàêà.exe"
        3⤵
        • Modifies WinLogon for persistence
        • Modifies security service
        • Windows security bypass
        • Disables RegEdit via registry modification
        • Executes dropped EXE
        • Windows security modification
        • Adds Run key to start application
        • Drops file in System32 directory
        • 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:2696
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\ìàçàôàêà.exe" +s +h
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:2612
          • C:\Windows\SysWOW64\attrib.exe
            attrib "C:\Users\Admin\AppData\Local\Temp\ìàçàôàêà.exe" +s +h
            5⤵
            • Sets file to hidden
            • System Location Discovery: System Language Discovery
            • Views/modifies file attributes
            PID:1852
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:2192
          • C:\Windows\SysWOW64\attrib.exe
            attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
            5⤵
            • Sets file to hidden
            • System Location Discovery: System Language Discovery
            • Views/modifies file attributes
            PID:2596
        • C:\Windows\SysWOW64\notepad.exe
          notepad
          4⤵
          • System Location Discovery: System Language Discovery
          PID:1700
      • C:\Users\Admin\AppData\Local\Temp\64.exe
        "C:\Users\Admin\AppData\Local\Temp\64.exe"
        3⤵
        • Modifies WinLogon for persistence
        • Modifies security service
        • Windows security bypass
        • Disables RegEdit via registry modification
        • Executes dropped EXE
        • Windows security modification
        • Adds Run key to start application
        • Drops file in System32 directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        • System policy modification
        PID:2560
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\64.exe" +s +h
          4⤵
          • System Location Discovery: System Language Discovery
          PID:1448
          • C:\Windows\SysWOW64\attrib.exe
            attrib "C:\Users\Admin\AppData\Local\Temp\64.exe" +s +h
            5⤵
            • Sets file to hidden
            • System Location Discovery: System Language Discovery
            • Views/modifies file attributes
            PID:2148
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
          4⤵
          • System Location Discovery: System Language Discovery
          PID:2776
          • C:\Windows\SysWOW64\attrib.exe
            attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
            5⤵
            • Sets file to hidden
            • System Location Discovery: System Language Discovery
            • Views/modifies file attributes
            PID:2080
        • C:\Windows\SysWOW64\notepad.exe
          notepad
          4⤵
          • System Location Discovery: System Language Discovery
          PID:1764

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\64.exe

    Filesize

    659KB

    MD5

    7048f25bc0ba090a6032c44ed89090b5

    SHA1

    1eada430aca1d2d42b721a0d96495ab279bcddb0

    SHA256

    a9f28ea95f4e525ef3ff9c0b38a8914eb1ce98e44b91cd867154f7414ccb1989

    SHA512

    522f59a0c4ea54dba8653e68c19670c41ba6a395e9ada8c83ffd4e0b7983cb041c6f55919af756fc882336c2d4dd252e958f49f1d11cad0a8f41a3a220bbe3ce

  • C:\Users\Admin\AppData\Local\Temp\DOTA 2 HAK.exe

    Filesize

    574KB

    MD5

    ed1f8622583e025c88f49d87c6cb9ea8

    SHA1

    e6df1d20ccb444f9d9939c9ad68e47674682fb61

    SHA256

    620bbcf3a8ca25233247fbb5ed293799f7dad46d594649e74eb97f5041b5d95c

    SHA512

    31502c988b7457d0b1d408c75f40bb8de54d40e093c3c5cb724f7a1981511de8340b1230dd528a79eff37aec007c6d5c9169dfcd3b2f7dd2df1b45769a977d9a

  • \Users\Admin\AppData\Local\Temp\Spambot.exe

    Filesize

    761KB

    MD5

    1c35df8d8dc305a36ff28727515b49b1

    SHA1

    d89603204bb8c53ad7ee3bb83f93f33f5ce3b55c

    SHA256

    9ae3337f81d35de0385676f666ad1cddefc4200a362f257311cad1df335df1af

    SHA512

    1a7b75ee39ede335bf4f2edd0b6eef95ba64c00016b737e25b09940c7eeede3b3b153879e3057f6be2d79eb0534bdf74a834eaacf1d92eaeb3c413d14098ec26

  • \Users\Admin\AppData\Local\Temp\ìàçàôàêà.exe

    Filesize

    659KB

    MD5

    cfca83243eef473ffe11b3e04d12278a

    SHA1

    65dfe3b657d257cb6883bb29615fc4fee248658a

    SHA256

    b6127642b394438b5b1172278bf6079c938ecd1f274470b041c4ab17874f7581

    SHA512

    10ceb62560db7b9163cb770bd6d0c697c647f4c765c26b7fabd5d83d711f238578480e5054d9926f04229dddc9cce8ec690521e8a9fc39be374cd3a689042db5

  • memory/1700-91-0x00000000001A0000-0x00000000001A1000-memory.dmp

    Filesize

    4KB

  • memory/1700-53-0x0000000000080000-0x0000000000081000-memory.dmp

    Filesize

    4KB

  • memory/2060-21-0x0000000000400000-0x0000000000657000-memory.dmp

    Filesize

    2.3MB

  • memory/2060-25-0x0000000000400000-0x0000000000657000-memory.dmp

    Filesize

    2.3MB

  • memory/2060-26-0x0000000000220000-0x0000000000221000-memory.dmp

    Filesize

    4KB

  • memory/2060-22-0x0000000000220000-0x0000000000221000-memory.dmp

    Filesize

    4KB

  • memory/2060-23-0x0000000000466000-0x0000000000467000-memory.dmp

    Filesize

    4KB

  • memory/2176-24-0x0000000000400000-0x000000000051E000-memory.dmp

    Filesize

    1.1MB

  • memory/2176-50-0x0000000000400000-0x000000000051E000-memory.dmp

    Filesize

    1.1MB

  • memory/2176-20-0x0000000000400000-0x000000000051E000-memory.dmp

    Filesize

    1.1MB

  • memory/2560-94-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/2696-93-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB