Analysis

  • max time kernel
    120s
  • max time network
    119s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09-11-2024 04:16

General

  • Target

    3d0e1f7330885586e1cdeeeee34a224ace2c9ffadbbcad2aa7d15caf637eafdeN.exe

  • Size

    929KB

  • MD5

    92ff8539eb093582609a7a8083f38930

  • SHA1

    fde8cc65fdd5ab825f1be7daa9c9e422d32a3c7f

  • SHA256

    3d0e1f7330885586e1cdeeeee34a224ace2c9ffadbbcad2aa7d15caf637eafde

  • SHA512

    bd3303b7b73b0e2460db1cbd2428b3e55ed56d8c6258d016613c762190a3196ecfade2c98ba59a23e207a67c9efa67b3e0da880bc299020eb4130a6092a024fd

  • SSDEEP

    24576:I+QawCFbpfu2X0UOkcBk8NPktcNrUBC0lyE:YjupvOzpZSrX

Malware Config

Extracted

Family

darkcomet

Botnet

TP

C2

eviloton.no-ip.biz:1604

Mutex

DCMIN_MUTEX-QZP3U75

Attributes
  • InstallPath

    DCSCMIN\IMDCSC.exe

  • gencode

    hrLBKzjjkYGB

  • install

    true

  • offline_keylogger

    true

  • persistence

    false

  • reg_key

    DarkComet RAT

Signatures

  • Darkcomet

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

  • Darkcomet family
  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 2 IoCs
  • Adds Run key to start application 2 TTPs 3 IoCs
  • Suspicious use of SetThreadContext 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 4 IoCs

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

  • Suspicious use of AdjustPrivilegeToken 48 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 34 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3d0e1f7330885586e1cdeeeee34a224ace2c9ffadbbcad2aa7d15caf637eafdeN.exe
    "C:\Users\Admin\AppData\Local\Temp\3d0e1f7330885586e1cdeeeee34a224ace2c9ffadbbcad2aa7d15caf637eafdeN.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2980
    • C:\Users\Admin\AppData\Local\Temp\3d0e1f7330885586e1cdeeeee34a224ace2c9ffadbbcad2aa7d15caf637eafdeN.exe
      "C:\Users\Admin\AppData\Local\Temp\3d0e1f7330885586e1cdeeeee34a224ace2c9ffadbbcad2aa7d15caf637eafdeN.exe"
      2⤵
        PID:4288
      • C:\Users\Admin\AppData\Local\Temp\3d0e1f7330885586e1cdeeeee34a224ace2c9ffadbbcad2aa7d15caf637eafdeN.exe
        "C:\Users\Admin\AppData\Local\Temp\3d0e1f7330885586e1cdeeeee34a224ace2c9ffadbbcad2aa7d15caf637eafdeN.exe"
        2⤵
        • Modifies WinLogon for persistence
        • Checks computer location settings
        • Adds Run key to start application
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:4932
        • C:\Users\Admin\Documents\DCSCMIN\IMDCSC.exe
          "C:\Users\Admin\Documents\DCSCMIN\IMDCSC.exe"
          3⤵
          • Executes dropped EXE
          • Adds Run key to start application
          • Suspicious use of SetThreadContext
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:3712
          • C:\Users\Admin\Documents\DCSCMIN\IMDCSC.exe
            "C:\Users\Admin\Documents\DCSCMIN\IMDCSC.exe"
            4⤵
            • Executes dropped EXE
            • System Location Discovery: System Language Discovery
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of SetWindowsHookEx
            PID:1712

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\Documents\DCSCMIN\IMDCSC.exe

      Filesize

      929KB

      MD5

      92ff8539eb093582609a7a8083f38930

      SHA1

      fde8cc65fdd5ab825f1be7daa9c9e422d32a3c7f

      SHA256

      3d0e1f7330885586e1cdeeeee34a224ace2c9ffadbbcad2aa7d15caf637eafde

      SHA512

      bd3303b7b73b0e2460db1cbd2428b3e55ed56d8c6258d016613c762190a3196ecfade2c98ba59a23e207a67c9efa67b3e0da880bc299020eb4130a6092a024fd

    • memory/1712-18-0x0000000000400000-0x00000000004B2000-memory.dmp

      Filesize

      712KB

    • memory/1712-23-0x0000000002BF0000-0x0000000002BF1000-memory.dmp

      Filesize

      4KB

    • memory/1712-22-0x0000000000400000-0x00000000004B2000-memory.dmp

      Filesize

      712KB

    • memory/1712-21-0x0000000000400000-0x00000000004B2000-memory.dmp

      Filesize

      712KB

    • memory/1712-20-0x0000000000400000-0x00000000004B2000-memory.dmp

      Filesize

      712KB

    • memory/1712-19-0x0000000002BF0000-0x0000000002BF1000-memory.dmp

      Filesize

      4KB

    • memory/1712-17-0x0000000000400000-0x00000000004B2000-memory.dmp

      Filesize

      712KB

    • memory/4932-3-0x0000000000400000-0x00000000004B2000-memory.dmp

      Filesize

      712KB

    • memory/4932-13-0x0000000000400000-0x00000000004B2000-memory.dmp

      Filesize

      712KB

    • memory/4932-4-0x0000000002DE0000-0x0000000002DE1000-memory.dmp

      Filesize

      4KB

    • memory/4932-0-0x0000000000400000-0x00000000004B2000-memory.dmp

      Filesize

      712KB

    • memory/4932-2-0x0000000000400000-0x00000000004B2000-memory.dmp

      Filesize

      712KB

    • memory/4932-1-0x0000000000400000-0x00000000004B2000-memory.dmp

      Filesize

      712KB