Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28/12/2024, 00:09

General

  • Target
    8e62ca1802bb4f7510305c74defe9521a0fbc3d4884a2460dfb6f3bfaec34faa.exe
  • Size 1.5MB
  • Sample241228-afxb1aspbl
  • SHA256 8e62ca1802bb4f7510305c74defe9521a0fbc3d4884a2460dfb6f3bfaec34faa
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • darkcomet

Botnet
  • Guest16

C2
  • choco378787.no-ip.biz:1606

Mutex
  • DC_MUTEX-9SWT19V

Attributes
  • gencode

    6jeW0kHnheiZ

  • install

    false

  • offline_keylogger

    true

  • persistence

    false

Signatures

  • Darkcomet

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

  • Darkcomet family
  • Adds Run key to start application 2 TTPs 7 IoCs
  • Enumerates connected drives 3 TTPs 23 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • 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 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 25 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8e62ca1802bb4f7510305c74defe9521a0fbc3d4884a2460dfb6f3bfaec34faa.exe
    "C:\Users\Admin\AppData\Local\Temp\8e62ca1802bb4f7510305c74defe9521a0fbc3d4884a2460dfb6f3bfaec34faa.exe"
    1⤵
    • Adds Run key to start application
    • Enumerates connected drives
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4844
    • C:\Users\Admin\AppData\Local\Temp\8e62ca1802bb4f7510305c74defe9521a0fbc3d4884a2460dfb6f3bfaec34faa.exe
      "C:\Users\Admin\AppData\Local\Temp\8e62ca1802bb4f7510305c74defe9521a0fbc3d4884a2460dfb6f3bfaec34faa.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:4728

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        aut8FBD.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\aut8FBD.tmp
        • Size 662KB
        • SHA256 093b83fea21e1cb9f474f9322147c3b41c28dfc6dcbef187e8c1f088d03cd219
        • MD5 SHA1 SHA512 SSDEEP

        memory/4728-14-0x0000000000400000-0x00000000004B5000-memory.dmp

        memory/4728-15-0x0000000000400000-0x00000000004B5000-memory.dmp

        memory/4728-16-0x0000000000400000-0x00000000004B5000-memory.dmp

        memory/4728-17-0x0000000000400000-0x00000000004B5000-memory.dmp

        memory/4728-18-0x0000000000400000-0x00000000004B5000-memory.dmp

        memory/4728-19-0x0000000000400000-0x00000000004B5000-memory.dmp

        memory/4728-20-0x0000000000400000-0x00000000004B5000-memory.dmp

        memory/4728-21-0x0000000000400000-0x00000000004B5000-memory.dmp

        memory/4728-22-0x0000000000400000-0x00000000004B5000-memory.dmp

        memory/4728-23-0x0000000000400000-0x00000000004B5000-memory.dmp

        memory/4728-24-0x0000000000400000-0x00000000004B5000-memory.dmp

        memory/4728-25-0x0000000000400000-0x00000000004B5000-memory.dmp

        memory/4728-26-0x0000000000400000-0x00000000004B5000-memory.dmp

        memory/4728-27-0x0000000000400000-0x00000000004B5000-memory.dmp

        memory/4728-28-0x0000000000400000-0x00000000004B5000-memory.dmp

        memory/4728-29-0x0000000000400000-0x00000000004B5000-memory.dmp

        memory/4728-30-0x0000000000400000-0x00000000004B5000-memory.dmp

        memory/4728-31-0x0000000000400000-0x00000000004B5000-memory.dmp

        memory/4728-32-0x0000000000400000-0x00000000004B5000-memory.dmp

        memory/4728-33-0x0000000000400000-0x00000000004B5000-memory.dmp

        memory/4728-34-0x0000000000400000-0x00000000004B5000-memory.dmp

        memory/4728-35-0x0000000000400000-0x00000000004B5000-memory.dmp

        memory/4728-36-0x0000000000400000-0x00000000004B5000-memory.dmp