Analysis

  • max time kernel
    150s
  • max time network
    139s
  • platform
    windows7_x64
  • resource
    win7-20241023-en
  • resource tags

    arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
  • submitted
    03-01-2025 08:10

General

  • Target

    Simple BTC Trader v1.3/Simple BTC Trader v1.3 [Trial Version].exe

  • Size

    1.0MB

  • MD5

    d493ef686bd337ee99459886c3ef6f93

  • SHA1

    e0b99011aec22e73f0eb362d503e724567b2ae33

  • SHA256

    fc46fddea9f07579ff17ca2045151449488c44c30435df61f560797d9e4a1bff

  • SHA512

    96074111f22fbb6c7d13a42d0fc6a60a50f98e3e0ddc79458469b6edcec24c596bc5966419516225fc26fa9b2bf85c9dd6ce6933d4cbb42faf41d1aa3c16068c

  • SSDEEP

    12288:rhE5xyytgDbV5WC2Mry6Wzgo0Rl7yX5vWL1wajud:NE5Yd5ZrG2lO+1O

Malware Config

Extracted

Family

darkcomet

Botnet

Coin

C2

89.173.7.7:200

Mutex

DC_MUTEX-YG8ENTR

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    g43hiCLbWeZk

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    MicroUpdate

Signatures

  • Darkcomet

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

  • Darkcomet family
  • Modifies WinLogon for persistence 2 TTPs 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 2 IoCs
  • Loads dropped DLL 3 IoCs
  • Adds Run key to start application 2 TTPs 2 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 10 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 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • Views/modifies file attributes 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Simple BTC Trader v1.3\Simple BTC Trader v1.3 [Trial Version].exe
    "C:\Users\Admin\AppData\Local\Temp\Simple BTC Trader v1.3\Simple BTC Trader v1.3 [Trial Version].exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:684
    • C:\Users\Admin\AppData\Local\Temp\Simple BTC Trader v1.3\Simple BTC Trader v1.3 [Trial Version].exe
      "C:\Users\Admin\AppData\Local\Temp\Simple BTC Trader v1.3\Simple BTC Trader v1.3 [Trial Version].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:2488
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\Simple BTC Trader v1.3\Simple BTC Trader v1.3 [Trial Version].exe" +s +h
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2540
        • C:\Windows\SysWOW64\attrib.exe
          attrib "C:\Users\Admin\AppData\Local\Temp\Simple BTC Trader v1.3\Simple BTC Trader v1.3 [Trial Version].exe" +s +h
          4⤵
          • Sets file to hidden
          • System Location Discovery: System Language Discovery
          • Views/modifies file attributes
          PID:2716
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\Simple BTC Trader v1.3" +s +h
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2784
        • C:\Windows\SysWOW64\attrib.exe
          attrib "C:\Users\Admin\AppData\Local\Temp\Simple BTC Trader v1.3" +s +h
          4⤵
          • Sets file to hidden
          • System Location Discovery: System Language Discovery
          • Views/modifies file attributes
          PID:2908
      • C:\Windows\SysWOW64\notepad.exe
        notepad
        3⤵
        • Deletes itself
        • System Location Discovery: System Language Discovery
        PID:2916
      • C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
        "C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2780
        • C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
          "C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe"
          4⤵
          • Executes dropped EXE
          • Adds Run key to start application
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: GetForegroundWindowSpam
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          PID:848
          • C:\Windows\SysWOW64\notepad.exe
            notepad
            5⤵
            • System Location Discovery: System Language Discovery
            PID:1796

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • \Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe

    Filesize

    1.0MB

    MD5

    d493ef686bd337ee99459886c3ef6f93

    SHA1

    e0b99011aec22e73f0eb362d503e724567b2ae33

    SHA256

    fc46fddea9f07579ff17ca2045151449488c44c30435df61f560797d9e4a1bff

    SHA512

    96074111f22fbb6c7d13a42d0fc6a60a50f98e3e0ddc79458469b6edcec24c596bc5966419516225fc26fa9b2bf85c9dd6ce6933d4cbb42faf41d1aa3c16068c

  • memory/684-0-0x0000000074C71000-0x0000000074C72000-memory.dmp

    Filesize

    4KB

  • memory/684-1-0x0000000074C70000-0x000000007521B000-memory.dmp

    Filesize

    5.7MB

  • memory/684-2-0x0000000074C70000-0x000000007521B000-memory.dmp

    Filesize

    5.7MB

  • memory/684-32-0x0000000074C70000-0x000000007521B000-memory.dmp

    Filesize

    5.7MB

  • memory/2488-27-0x0000000000400000-0x00000000004B6000-memory.dmp

    Filesize

    728KB

  • memory/2488-10-0x0000000000400000-0x00000000004B6000-memory.dmp

    Filesize

    728KB

  • memory/2488-33-0x0000000000400000-0x00000000004B6000-memory.dmp

    Filesize

    728KB

  • memory/2488-31-0x0000000000400000-0x00000000004B6000-memory.dmp

    Filesize

    728KB

  • memory/2488-28-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2488-17-0x0000000000400000-0x00000000004B6000-memory.dmp

    Filesize

    728KB

  • memory/2488-25-0x0000000000400000-0x00000000004B6000-memory.dmp

    Filesize

    728KB

  • memory/2488-21-0x0000000000400000-0x00000000004B6000-memory.dmp

    Filesize

    728KB

  • memory/2488-13-0x0000000000400000-0x00000000004B6000-memory.dmp

    Filesize

    728KB

  • memory/2488-34-0x0000000000400000-0x00000000004B6000-memory.dmp

    Filesize

    728KB

  • memory/2488-7-0x0000000000400000-0x00000000004B6000-memory.dmp

    Filesize

    728KB

  • memory/2488-5-0x0000000000400000-0x00000000004B6000-memory.dmp

    Filesize

    728KB

  • memory/2488-35-0x00000000001D0000-0x00000000001D1000-memory.dmp

    Filesize

    4KB

  • memory/2488-141-0x0000000000400000-0x00000000004B6000-memory.dmp

    Filesize

    728KB

  • memory/2488-3-0x0000000000400000-0x00000000004B6000-memory.dmp

    Filesize

    728KB

  • memory/2916-38-0x0000000000080000-0x0000000000081000-memory.dmp

    Filesize

    4KB

  • memory/2916-58-0x00000000001D0000-0x00000000001D1000-memory.dmp

    Filesize

    4KB