Analysis

  • max time kernel
    151s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240611-en
  • resource tags

    arch:x64arch:x86image:win7-20240611-enlocale:en-usos:windows7-x64system
  • submitted
    28-06-2024 00:19

General

  • Target

    1816dd0f974fecd01a3aee390593de19_JaffaCakes118.exe

  • Size

    1.3MB

  • MD5

    1816dd0f974fecd01a3aee390593de19

  • SHA1

    67c477675af6dfd5fca81669a58daae9fa8ddc8c

  • SHA256

    4b259a4d6a566836a4e511b7ca5d0bd5775360fd52eaf89b03035d4e602431c5

  • SHA512

    2488732d171cbd43f283cf423d493b1294439a5a4e200b6454a24267eb8f2a815058ef4798c16198b9b6bd4dbbb5442adaf103f483b02935b098bd9fa5fe966a

  • SSDEEP

    24576:KdWfwUBOzQKW8d4UR/tqhnyMIo0eyauZUKctbFPZX46fJ6dVUqhkNvaWJ6Uq:q0p6pR/mndIoxyPU/btmVUqyRTq

Malware Config

Extracted

Family

darkcomet

Botnet

metin2-gio

C2

127.0.0.1:1604

hepter.dyndns.biz:8211

hepter.no-ip.org:8211

127.0.0.1:8211

Mutex

DC_MUTEX-C50UDX6

Attributes
  • InstallPath

    Resimlerim\Profiles\chrome.exe

  • gencode

    ja8PAQUAvm4V

  • install

    true

  • offline_keylogger

    true

  • password

    hepter

  • persistence

    true

  • reg_key

    GoogleUpdate

Signatures

  • Darkcomet

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

  • 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 1 IoCs
  • Disables RegEdit via registry modification 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 3 IoCs
  • Loads dropped DLL 4 IoCs
  • Windows security modification 2 TTPs 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Drops file in System32 directory 1 IoCs
  • Suspicious use of SetThreadContext 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 46 IoCs
  • Suspicious use of SetWindowsHookEx 5 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • Views/modifies file attributes 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1816dd0f974fecd01a3aee390593de19_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\1816dd0f974fecd01a3aee390593de19_JaffaCakes118.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in System32 directory
    • Suspicious use of SetThreadContext
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:840
    • C:\Users\Admin\AppData\Local\Temp\1816dd0f974fecd01a3aee390593de19_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\1816dd0f974fecd01a3aee390593de19_JaffaCakes118.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2656
      • C:\Users\Admin\AppData\Local\Temp\1816dd0f974fecd01a3aee390593de19_JaffaCakes118.exe
        "C:\Users\Admin\AppData\Local\Temp\1816dd0f974fecd01a3aee390593de19_JaffaCakes118.exe"
        3⤵
        • Modifies WinLogon for persistence
        • Loads dropped DLL
        • Adds Run key to start application
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2612
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\1816dd0f974fecd01a3aee390593de19_JaffaCakes118.exe" +s +h
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:2568
          • C:\Windows\SysWOW64\attrib.exe
            attrib "C:\Users\Admin\AppData\Local\Temp\1816dd0f974fecd01a3aee390593de19_JaffaCakes118.exe" +s +h
            5⤵
            • Sets file to hidden
            • Views/modifies file attributes
            PID:376
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:2416
          • C:\Windows\SysWOW64\attrib.exe
            attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
            5⤵
            • Sets file to hidden
            • Views/modifies file attributes
            PID:656
        • C:\Windows\SysWOW64\notepad.exe
          notepad
          4⤵
          • Deletes itself
          PID:1616
        • C:\Users\Admin\Documents\Resimlerim\Profiles\chrome.exe
          "C:\Users\Admin\Documents\Resimlerim\Profiles\chrome.exe"
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Suspicious use of SetThreadContext
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:1940
          • C:\Users\Admin\Documents\Resimlerim\Profiles\chrome.exe
            "C:\Users\Admin\Documents\Resimlerim\Profiles\chrome.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of SetWindowsHookEx
            PID:1036
            • C:\Users\Admin\Documents\Resimlerim\Profiles\chrome.exe
              "C:\Users\Admin\Documents\Resimlerim\Profiles\chrome.exe"
              6⤵
              • Modifies firewall policy service
              • Modifies security service
              • Windows security bypass
              • Disables RegEdit via registry modification
              • Executes dropped EXE
              • Windows security modification
              • Adds Run key to start application
              • Suspicious behavior: GetForegroundWindowSpam
              • Suspicious use of AdjustPrivilegeToken
              • Suspicious use of SetWindowsHookEx
              PID:2824
              • C:\Windows\SysWOW64\notepad.exe
                notepad
                7⤵
                  PID:1840

    Network

    MITRE ATT&CK Matrix ATT&CK v13

    Persistence

    Boot or Logon Autostart Execution

    2
    T1547

    Registry Run Keys / Startup Folder

    1
    T1547.001

    Winlogon Helper DLL

    1
    T1547.004

    Create or Modify System Process

    2
    T1543

    Windows Service

    2
    T1543.003

    Privilege Escalation

    Boot or Logon Autostart Execution

    2
    T1547

    Registry Run Keys / Startup Folder

    1
    T1547.001

    Winlogon Helper DLL

    1
    T1547.004

    Create or Modify System Process

    2
    T1543

    Windows Service

    2
    T1543.003

    Defense Evasion

    Modify Registry

    6
    T1112

    Impair Defenses

    3
    T1562

    Disable or Modify Tools

    2
    T1562.001

    Disable or Modify System Firewall

    1
    T1562.004

    Hide Artifacts

    2
    T1564

    Hidden Files and Directories

    2
    T1564.001

    Discovery

    System Information Discovery

    1
    T1082

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Roaming\Microsoft\Crypto\RSA\S-1-5-21-39690363-730359138-1046745555-1000\88603cb2913a7df3fbd16b5f958e6447_793829ab-9e00-42f6-8ab9-a6ffde9cf44a
      Filesize

      51B

      MD5

      5fc2ac2a310f49c14d195230b91a8885

      SHA1

      90855cc11136ba31758fe33b5cf9571f9a104879

      SHA256

      374e0e2897a7a82e0e44794cad89df0f3cdd7703886239c1fe06d625efd48092

      SHA512

      ab46554df9174b9fe9beba50a640f67534c3812f64d96a1fb8adfdc136dfe730ca2370825cd45b7f87a544d6a58dd868cb5a3a7f42e2789f6d679dbc0fdd52c3

    • C:\Users\Admin\Documents\Resimlerim\Profiles\chrome.exe
      Filesize

      1.3MB

      MD5

      1816dd0f974fecd01a3aee390593de19

      SHA1

      67c477675af6dfd5fca81669a58daae9fa8ddc8c

      SHA256

      4b259a4d6a566836a4e511b7ca5d0bd5775360fd52eaf89b03035d4e602431c5

      SHA512

      2488732d171cbd43f283cf423d493b1294439a5a4e200b6454a24267eb8f2a815058ef4798c16198b9b6bd4dbbb5442adaf103f483b02935b098bd9fa5fe966a

    • \Windows\SysWOW64\0c0c0c0c.dll
      Filesize

      1.3MB

      MD5

      df5c622697dc8c743f3884914a9e4d99

      SHA1

      cdfc6345080dfa9c45d323f15532ad9274385d2f

      SHA256

      0ca52bc5cf854e274e15ba07df97b2e75ec4e1fc2d90f23676da7fa3c95da089

      SHA512

      59867bb9608c250661a6eb823f06c907d334eb4f638b04f21cf10213e5163035c37261f5213642c703dd382871a5d3ae764839c1b93e18e833d85ac0e3409f90

    • memory/840-0-0x0000000000400000-0x00000000005D4000-memory.dmp
      Filesize

      1.8MB

    • memory/840-1-0x0000000000020000-0x0000000000023000-memory.dmp
      Filesize

      12KB

    • memory/840-11-0x0000000000400000-0x00000000005D4000-memory.dmp
      Filesize

      1.8MB

    • memory/840-12-0x0000000002CC0000-0x0000000002E94000-memory.dmp
      Filesize

      1.8MB

    • memory/1616-67-0x0000000000170000-0x0000000000171000-memory.dmp
      Filesize

      4KB

    • memory/1616-43-0x0000000000080000-0x0000000000081000-memory.dmp
      Filesize

      4KB

    • memory/1940-79-0x0000000000400000-0x00000000005D4000-memory.dmp
      Filesize

      1.8MB

    • memory/1940-88-0x0000000000400000-0x00000000005D4000-memory.dmp
      Filesize

      1.8MB

    • memory/2612-26-0x0000000000400000-0x00000000004BC000-memory.dmp
      Filesize

      752KB

    • memory/2612-17-0x0000000000400000-0x00000000004BC000-memory.dmp
      Filesize

      752KB

    • memory/2612-28-0x0000000000400000-0x00000000004BC000-memory.dmp
      Filesize

      752KB

    • memory/2612-32-0x0000000000400000-0x00000000004BC000-memory.dmp
      Filesize

      752KB

    • memory/2612-24-0x0000000000400000-0x00000000004BC000-memory.dmp
      Filesize

      752KB

    • memory/2612-23-0x0000000000400000-0x00000000004BC000-memory.dmp
      Filesize

      752KB

    • memory/2612-21-0x0000000000400000-0x00000000004BC000-memory.dmp
      Filesize

      752KB

    • memory/2612-20-0x0000000000400000-0x00000000004BC000-memory.dmp
      Filesize

      752KB

    • memory/2612-33-0x0000000000400000-0x00000000004BC000-memory.dmp
      Filesize

      752KB

    • memory/2612-30-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
      Filesize

      4KB

    • memory/2612-22-0x0000000000400000-0x00000000004BC000-memory.dmp
      Filesize

      752KB

    • memory/2612-34-0x0000000000400000-0x00000000004BC000-memory.dmp
      Filesize

      752KB

    • memory/2612-78-0x0000000000400000-0x00000000004BC000-memory.dmp
      Filesize

      752KB

    • memory/2612-39-0x0000000000400000-0x00000000004BC000-memory.dmp
      Filesize

      752KB

    • memory/2612-38-0x0000000000400000-0x00000000004BC000-memory.dmp
      Filesize

      752KB

    • memory/2656-7-0x0000000000400000-0x0000000000406000-memory.dmp
      Filesize

      24KB

    • memory/2656-10-0x0000000000400000-0x0000000000406000-memory.dmp
      Filesize

      24KB

    • memory/2656-37-0x0000000000400000-0x0000000000406000-memory.dmp
      Filesize

      24KB