Analysis

  • max time kernel
    120s
  • max time network
    44s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    07-01-2025 08:02

General

  • Target

    0da14f1383ac0644279c0bf1d3651c69e3ef0cefbb4f343edff14537c0d8effeN.exe

  • Size

    1.3MB

  • MD5

    78069076264a46ef6a3d66d3d9b4ed50

  • SHA1

    e3871d684469810c1b93f05d2f16324cd817f55d

  • SHA256

    0da14f1383ac0644279c0bf1d3651c69e3ef0cefbb4f343edff14537c0d8effe

  • SHA512

    1fcb2565505f903854106bf562211cce2ef480c60c2bf21211e1a82bd8aea1bdb0031036d7119907354e9cc464a4221bc258d1bfb6192fa2fe4649007d9ab632

  • SSDEEP

    24576:TYSj0spI7nYSj0spI7RYSj0spI7rYSj0spI7+qP9YsQnYoJU0oFGc:TYSY1nYSY1RYSY1rYSY1+89FOTSx

Malware Config

Extracted

Family

darkcomet

Botnet

Nubão

C2

prodigiohk.no-ip.org:6666

Mutex

Avast_Security-6PM6DD0

Attributes
  • InstallPath

    Drivers\msdcsc.exe

  • gencode

    Pnl2rf9hilzY

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    Monitor Driver

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 2 IoCs
  • Loads dropped DLL 2 IoCs
  • Windows security modification 2 TTPs 2 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • UPX packed file 17 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 9 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 3 IoCs
  • Suspicious use of WriteProcessMemory 59 IoCs
  • System policy modification 1 TTPs 3 IoCs
  • Views/modifies file attributes 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0da14f1383ac0644279c0bf1d3651c69e3ef0cefbb4f343edff14537c0d8effeN.exe
    "C:\Users\Admin\AppData\Local\Temp\0da14f1383ac0644279c0bf1d3651c69e3ef0cefbb4f343edff14537c0d8effeN.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2108
    • C:\Users\Admin\AppData\Local\Temp\0da14f1383ac0644279c0bf1d3651c69e3ef0cefbb4f343edff14537c0d8effeN.exe
      "C:\Users\Admin\AppData\Local\Temp\0da14f1383ac0644279c0bf1d3651c69e3ef0cefbb4f343edff14537c0d8effeN.exe"
      2⤵
      • 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:2868
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\0da14f1383ac0644279c0bf1d3651c69e3ef0cefbb4f343edff14537c0d8effeN.exe" +s +h
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:1648
        • C:\Windows\SysWOW64\attrib.exe
          attrib "C:\Users\Admin\AppData\Local\Temp\0da14f1383ac0644279c0bf1d3651c69e3ef0cefbb4f343edff14537c0d8effeN.exe" +s +h
          4⤵
          • Sets file to hidden
          • System Location Discovery: System Language Discovery
          • Views/modifies file attributes
          PID:2876
      • 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:2856
        • 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:2928
      • C:\ProgramData\Microsoft\Windows\Start Menu\Drivers\msdcsc.exe
        "C:\ProgramData\Microsoft\Windows\Start Menu\Drivers\msdcsc.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2628
        • C:\ProgramData\Microsoft\Windows\Start Menu\Drivers\msdcsc.exe
          "C:\ProgramData\Microsoft\Windows\Start Menu\Drivers\msdcsc.exe"
          4⤵
          • 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
          • 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:2384
          • C:\Windows\SysWOW64\notepad.exe
            notepad
            5⤵
            • System Location Discovery: System Language Discovery
            PID:1868

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • \ProgramData\Microsoft\Windows\Start Menu\Drivers\msdcsc.exe

    Filesize

    1.3MB

    MD5

    78069076264a46ef6a3d66d3d9b4ed50

    SHA1

    e3871d684469810c1b93f05d2f16324cd817f55d

    SHA256

    0da14f1383ac0644279c0bf1d3651c69e3ef0cefbb4f343edff14537c0d8effe

    SHA512

    1fcb2565505f903854106bf562211cce2ef480c60c2bf21211e1a82bd8aea1bdb0031036d7119907354e9cc464a4221bc258d1bfb6192fa2fe4649007d9ab632

  • memory/1868-48-0x00000000000C0000-0x00000000000C1000-memory.dmp

    Filesize

    4KB

  • memory/2384-90-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2384-47-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2384-46-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2384-43-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2384-45-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2384-44-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2868-6-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2868-16-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2868-15-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2868-14-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2868-17-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2868-31-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2868-13-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2868-5-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2868-2-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2868-8-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2868-10-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2868-12-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2868-11-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB