Analysis

  • max time kernel
    149s
  • max time network
    153s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260130-en
  • resource tags

    arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    21/02/2026, 12:45

General

  • Target
    2026-02-21_77b5f3194e52243ac851e1982e3886b1_amadey_elex_rhadamanthys_smoke-loader_stop.exe
  • Size 568KB
  • Sample260221-py6eyscy5d
  • SHA256 2e9fa319a294a78067984c7879ca2c4b23d7fc66ba1a74e2175bb18c26ba9ebd
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • darkcomet

Botnet
  • Guest16

C2
  • changllinstocks.no-ip.biz:1604

Mutex
  • DC_MUTEX-TZQF5CK

Attributes
  • gencode

    z490kbZDLTpB

  • install

    false

  • offline_keylogger

    true

  • persistence

    false

rc4.plain

Signatures

  • Darkcomet

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

  • Darkcomet family
  • Executes dropped EXE 3 IoCs
  • Adds Run key to start application 2 TTPs 9 IoCs
  • Suspicious use of SetThreadContext 6 IoCs
  • UPX packed file 16 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 use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 30 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-02-21_77b5f3194e52243ac851e1982e3886b1_amadey_elex_rhadamanthys_smoke-loader_stop.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-02-21_77b5f3194e52243ac851e1982e3886b1_amadey_elex_rhadamanthys_smoke-loader_stop.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3684
    • C:\Users\Admin\AppData\Local\Temp\2026-02-21_77b5f3194e52243ac851e1982e3886b1_amadey_elex_rhadamanthys_smoke-loader_stop.exe
      "C:\Users\Admin\AppData\Local\Temp\2026-02-21_77b5f3194e52243ac851e1982e3886b1_amadey_elex_rhadamanthys_smoke-loader_stop.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3640
      • C:\Users\Admin\AppData\Local\Temp\2026-02-21_77b5f3194e52243ac851e1982e3886b1_amadey_elex_rhadamanthys_smoke-loader_stop.exe
        "C:\Users\Admin\AppData\Local\Temp\2026-02-21_77b5f3194e52243ac851e1982e3886b1_amadey_elex_rhadamanthys_smoke-loader_stop.exe"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:1028
  • C:\Users\Admin\AppData\Roaming\IMJDC.exe
    C:\Users\Admin\AppData\Roaming\IMJDC.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2708
    • C:\Users\Admin\AppData\Roaming\IMJDC.exe
      "C:\Users\Admin\AppData\Roaming\IMJDC.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2888
      • C:\Users\Admin\AppData\Roaming\IMJDC.exe
        "C:\Users\Admin\AppData\Roaming\IMJDC.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        PID:5044
  • C:\Users\Admin\AppData\Local\Temp\2026-02-21_77b5f3194e52243ac851e1982e3886b1_amadey_elex_rhadamanthys_smoke-loader_stop.exe
    C:\Users\Admin\AppData\Local\Temp\2026-02-21_77b5f3194e52243ac851e1982e3886b1_amadey_elex_rhadamanthys_smoke-loader_stop.exe
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1104
    • C:\Users\Admin\AppData\Local\Temp\2026-02-21_77b5f3194e52243ac851e1982e3886b1_amadey_elex_rhadamanthys_smoke-loader_stop.exe
      "C:\Users\Admin\AppData\Local\Temp\2026-02-21_77b5f3194e52243ac851e1982e3886b1_amadey_elex_rhadamanthys_smoke-loader_stop.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1616
      • C:\Users\Admin\AppData\Local\Temp\2026-02-21_77b5f3194e52243ac851e1982e3886b1_amadey_elex_rhadamanthys_smoke-loader_stop.exe
        "C:\Users\Admin\AppData\Local\Temp\2026-02-21_77b5f3194e52243ac851e1982e3886b1_amadey_elex_rhadamanthys_smoke-loader_stop.exe"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        PID:2664

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        IMJDC.exe

        • Path C:\Users\Admin\AppData\Roaming\IMJDC.exe
        • Size 568KB
        • SHA256 2e9fa319a294a78067984c7879ca2c4b23d7fc66ba1a74e2175bb18c26ba9ebd
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/1028-14-0x0000000000400000-0x00000000004B7000-memory.dmp

        memory/1028-80-0x0000000000400000-0x00000000004B7000-memory.dmp

        memory/1028-62-0x0000000000400000-0x00000000004B7000-memory.dmp

        memory/1028-5-0x0000000000400000-0x00000000004B7000-memory.dmp

        memory/1028-8-0x0000000000400000-0x00000000004B7000-memory.dmp

        memory/1028-10-0x0000000000400000-0x00000000004B7000-memory.dmp

        memory/1028-56-0x0000000000400000-0x00000000004B7000-memory.dmp

        memory/1028-51-0x0000000000B60000-0x0000000000C3F000-memory.dmp

        memory/1028-49-0x0000000000400000-0x00000000004B7000-memory.dmp

        memory/1028-13-0x0000000000400000-0x00000000004B7000-memory.dmp

        memory/1028-12-0x0000000000400000-0x00000000004B7000-memory.dmp

        memory/1028-15-0x0000000000400000-0x00000000004B7000-memory.dmp

        memory/1028-16-0x0000000000400000-0x00000000004B7000-memory.dmp

        memory/1028-86-0x0000000000400000-0x00000000004B7000-memory.dmp

        memory/1028-52-0x00000000030A0000-0x00000000030A7000-memory.dmp

        memory/1616-35-0x0000000000400000-0x0000000000472000-memory.dmp

        memory/1616-41-0x00000000008E0000-0x00000000009BF000-memory.dmp

        memory/1616-25-0x0000000000400000-0x0000000000472000-memory.dmp

        memory/1616-26-0x0000000000400000-0x0000000000472000-memory.dmp

        memory/1616-31-0x0000000000400000-0x0000000000472000-memory.dmp

        memory/2664-45-0x0000000000400000-0x00000000004B7000-memory.dmp

        memory/2664-44-0x0000000000940000-0x0000000000A1F000-memory.dmp

        memory/2888-28-0x0000000000400000-0x0000000000472000-memory.dmp

        memory/2888-23-0x0000000000400000-0x0000000000472000-memory.dmp

        memory/2888-22-0x0000000000400000-0x0000000000472000-memory.dmp

        memory/2888-21-0x0000000000400000-0x0000000000472000-memory.dmp

        memory/2888-38-0x0000000000A10000-0x0000000000AEF000-memory.dmp

        memory/3640-1-0x0000000000400000-0x0000000000472000-memory.dmp

        memory/3640-2-0x0000000000400000-0x0000000000472000-memory.dmp

        memory/3640-0-0x0000000000400000-0x0000000000472000-memory.dmp

        memory/3640-3-0x0000000000400000-0x0000000000472000-memory.dmp

        memory/3640-11-0x00000000008D0000-0x00000000009AF000-memory.dmp

        memory/3640-6-0x0000000000400000-0x0000000000472000-memory.dmp

        memory/5044-48-0x00000000008E0000-0x00000000009BF000-memory.dmp

        memory/5044-33-0x0000000000400000-0x00000000004B7000-memory.dmp

        memory/5044-46-0x0000000000400000-0x00000000004B7000-memory.dmp