Analysis

  • max time kernel
    40s
  • max time network
    123s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    23/07/2026, 02:44

General

  • Target
    2026-07-23_9c0e6651042a5f0b77fd99dba8e35844_drokbk_elex_rhadamanthys_smoke-loader_stealc_stop_tofsee.exe
  • Size 1.7MB
  • Sample260723-c8jbysdj3z
  • SHA256 dbed1ee2821540b69b229196b02d674fb6fa321a2339507365152c5a902f8b7b
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Family: DcRat 22 IoCs

    DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Process spawned unexpected child process 21 IoCs

    This typically indicates the parent process was compromised via an exploit or macro.

  • UAC bypass 3 TTPs 3 IoCs
  • Detects executables packed with SmartAssembly 5 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Checks whether UAC is enabled 1 TTPs 2 IoCs
  • SmartAssembly .NET packer 5 IoCs

    Detects SmartAssembly .NET packer.

  • Drops file in Program Files directory 3 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

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

  • Scheduled Task/Job: Scheduled Task 1 TTPs 21 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 15 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • System policy modification 1 TTPs 3 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-07-23_9c0e6651042a5f0b77fd99dba8e35844_drokbk_elex_rhadamanthys_smoke-loader_stealc_stop_tofsee.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-07-23_9c0e6651042a5f0b77fd99dba8e35844_drokbk_elex_rhadamanthys_smoke-loader_stealc_stop_tofsee.exe"
    1⤵
    • Family: DcRat
    • Modifies WinLogon for persistence
    • UAC bypass
    • Adds Run key to start application
    • Checks whether UAC is enabled
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • System policy modification
    PID:4340
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "IdleI" /sc MINUTE /mo 8 /tr "'C:\Users\All Users\USOShared\Idle.exe'" /f
    1⤵
    • Family: DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:3400
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "Idle" /sc ONLOGON /tr "'C:\Users\All Users\USOShared\Idle.exe'" /rl HIGHEST /f
    1⤵
    • Family: DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:3620
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "IdleI" /sc MINUTE /mo 14 /tr "'C:\Users\All Users\USOShared\Idle.exe'" /rl HIGHEST /f
    1⤵
    • Family: DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2384
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "ctfmonc" /sc MINUTE /mo 13 /tr "'C:\Program Files (x86)\Windows Photo Viewer\it-IT\ctfmon.exe'" /f
    1⤵
    • Family: DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4960
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "ctfmon" /sc ONLOGON /tr "'C:\Program Files (x86)\Windows Photo Viewer\it-IT\ctfmon.exe'" /rl HIGHEST /f
    1⤵
    • Family: DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4092
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "ctfmonc" /sc MINUTE /mo 13 /tr "'C:\Program Files (x86)\Windows Photo Viewer\it-IT\ctfmon.exe'" /rl HIGHEST /f
    1⤵
    • Family: DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:3692
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "smsss" /sc MINUTE /mo 5 /tr "'C:\Program Files (x86)\Microsoft.NET\Primary Interop Assemblies\smss.exe'" /f
    1⤵
    • Family: DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:748
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "smss" /sc ONLOGON /tr "'C:\Program Files (x86)\Microsoft.NET\Primary Interop Assemblies\smss.exe'" /rl HIGHEST /f
    1⤵
    • Family: DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2260
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "smsss" /sc MINUTE /mo 13 /tr "'C:\Program Files (x86)\Microsoft.NET\Primary Interop Assemblies\smss.exe'" /rl HIGHEST /f
    1⤵
    • Family: DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:692
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "smartscreens" /sc MINUTE /mo 8 /tr "'C:\Program Files\Java\jre-1.8\lib\smartscreen.exe'" /f
    1⤵
    • Family: DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:688
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "smartscreen" /sc ONLOGON /tr "'C:\Program Files\Java\jre-1.8\lib\smartscreen.exe'" /rl HIGHEST /f
    1⤵
    • Family: DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:3392
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "smartscreens" /sc MINUTE /mo 9 /tr "'C:\Program Files\Java\jre-1.8\lib\smartscreen.exe'" /rl HIGHEST /f
    1⤵
    • Family: DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:3728
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "sihosts" /sc MINUTE /mo 10 /tr "'C:\Program Files\Windows Defender\uk-UA\sihost.exe'" /f
    1⤵
    • Family: DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2676
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "sihost" /sc ONLOGON /tr "'C:\Program Files\Windows Defender\uk-UA\sihost.exe'" /rl HIGHEST /f
    1⤵
    • Family: DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2188
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "sihosts" /sc MINUTE /mo 10 /tr "'C:\Program Files\Windows Defender\uk-UA\sihost.exe'" /rl HIGHEST /f
    1⤵
    • Family: DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:3804
  • C:\Program Files (x86)\Microsoft.NET\Primary Interop Assemblies\smss.exe
    "C:\Program Files (x86)\Microsoft.NET\Primary Interop Assemblies\smss.exe"
    1⤵
      PID:4472
    • C:\Program Files (x86)\Windows Photo Viewer\it-IT\ctfmon.exe
      "C:\Program Files (x86)\Windows Photo Viewer\it-IT\ctfmon.exe"
      1⤵
        PID:3704
      • C:\Program Files\Java\jre-1.8\lib\smartscreen.exe
        "C:\Program Files\Java\jre-1.8\lib\smartscreen.exe"
        1⤵
          PID:960
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "smsss" /sc MINUTE /mo 11 /tr "'C:\Windows.old\smss.exe'" /f
          1⤵
          • Family: DcRat
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:2360
        • C:\Users\All Users\USOShared\Idle.exe
          "C:\Users\All Users\USOShared\Idle.exe"
          1⤵
            PID:4128
          • C:\Windows\system32\schtasks.exe
            schtasks.exe /create /tn "smss" /sc ONLOGON /tr "'C:\Windows.old\smss.exe'" /rl HIGHEST /f
            1⤵
            • Family: DcRat
            • Process spawned unexpected child process
            • Scheduled Task/Job: Scheduled Task
            PID:7268
          • C:\Windows\system32\schtasks.exe
            schtasks.exe /create /tn "smsss" /sc MINUTE /mo 5 /tr "'C:\Windows.old\smss.exe'" /rl HIGHEST /f
            1⤵
            • Family: DcRat
            • Process spawned unexpected child process
            • Scheduled Task/Job: Scheduled Task
            PID:8424
          • C:\Windows\system32\schtasks.exe
            schtasks.exe /create /tn "ctfmonc" /sc MINUTE /mo 14 /tr "'C:\Windows.old\ctfmon.exe'" /f
            1⤵
            • Family: DcRat
            • Process spawned unexpected child process
            • Scheduled Task/Job: Scheduled Task
            PID:7660
          • C:\Windows\system32\schtasks.exe
            schtasks.exe /create /tn "ctfmon" /sc ONLOGON /tr "'C:\Windows.old\ctfmon.exe'" /rl HIGHEST /f
            1⤵
            • Family: DcRat
            • Process spawned unexpected child process
            • Scheduled Task/Job: Scheduled Task
            PID:1672
          • C:\Windows\system32\schtasks.exe
            schtasks.exe /create /tn "ctfmonc" /sc MINUTE /mo 13 /tr "'C:\Windows.old\ctfmon.exe'" /rl HIGHEST /f
            1⤵
            • Family: DcRat
            • Process spawned unexpected child process
            • Scheduled Task/Job: Scheduled Task
            PID:4044
          • C:\Windows.old\ctfmon.exe
            "C:\Windows.old\ctfmon.exe"
            1⤵
              PID:4732

            Network

                  MITRE ATT&CK Enterprise v16

                  Replay Monitor

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                  Downloads

                  RCX2680.tmp

                  • Path C:\Program Files (x86)\Windows Photo Viewer\it-IT\RCX2680.tmp
                  • Size 384KB
                  • SHA256 8b09ad1acb9a7828bf736161c87a8c307fd60ebbd76d6863ef0d742b5f87e18b
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  ctfmon.exe

                  • Path C:\Program Files (x86)\Windows Photo Viewer\it-IT\ctfmon.exe
                  • Size 1.7MB
                  • SHA256 dbed1ee2821540b69b229196b02d674fb6fa321a2339507365152c5a902f8b7b
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  memory/4340-0-0x0000000074CF2000-0x0000000074CF3000-memory.dmp

                  memory/4340-1-0x0000000005450000-0x00000000056CC000-memory.dmp

                  memory/4340-2-0x0000000074CE0000-0x000000007549C000-memory.dmp

                  memory/4340-3-0x0000000074CE0000-0x000000007549C000-memory.dmp

                  memory/4340-5-0x0000000074CE0000-0x000000007549C000-memory.dmp

                  memory/4340-6-0x00000000051D0000-0x000000000544A000-memory.dmp

                  memory/4340-4-0x00000000056D0000-0x0000000005C8A000-memory.dmp

                  memory/4340-8-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4340-81-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4340-127-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4340-132-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4340-130-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4340-124-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4340-122-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4340-120-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4340-118-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4340-116-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4340-114-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4340-112-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4340-110-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4340-108-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4340-106-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4340-104-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4340-102-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4340-128-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4340-100-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4340-98-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4340-96-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4340-94-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4340-92-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4340-90-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4340-88-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4340-86-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4340-84-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4340-78-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4340-76-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4340-74-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4340-72-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4340-70-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4340-68-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4340-66-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4340-64-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4340-58-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4340-56-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4340-54-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4340-52-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4340-50-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4340-48-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4340-46-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4340-44-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4340-42-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4340-40-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4340-39-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4340-36-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4340-34-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4340-32-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4340-30-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4340-28-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4340-82-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4340-62-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4340-61-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4340-26-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4340-24-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4340-22-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4340-20-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4340-14-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4340-12-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4340-10-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4340-7-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4340-18-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4340-16-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4340-2010-0x0000000074CE0000-0x000000007549C000-memory.dmp

                  memory/4340-2172-0x0000000074CF2000-0x0000000074CF3000-memory.dmp

                  memory/4340-5229-0x0000000074CE0000-0x000000007549C000-memory.dmp

                  memory/4340-5230-0x0000000004B80000-0x0000000004B9C000-memory.dmp

                  memory/4340-5231-0x0000000004BB0000-0x0000000004C00000-memory.dmp

                  memory/4340-5233-0x0000000006380000-0x0000000006390000-memory.dmp

                  memory/4340-5232-0x0000000004C10000-0x0000000004C18000-memory.dmp

                  memory/4340-5234-0x00000000063E0000-0x00000000063F6000-memory.dmp

                  memory/4340-5235-0x00000000063C0000-0x00000000063C8000-memory.dmp

                  memory/4340-5236-0x0000000006400000-0x0000000006410000-memory.dmp

                  memory/4340-5237-0x0000000006450000-0x000000000645A000-memory.dmp

                  memory/4340-5238-0x0000000006780000-0x000000000678C000-memory.dmp

                  memory/4340-5239-0x0000000006790000-0x00000000067A2000-memory.dmp

                  memory/4340-5240-0x00000000067C0000-0x0000000006CEC000-memory.dmp

                  memory/4340-5241-0x0000000006D50000-0x0000000006D5C000-memory.dmp

                  memory/4340-5242-0x0000000006D60000-0x0000000006D6C000-memory.dmp

                  memory/4340-5245-0x0000000007140000-0x000000000714C000-memory.dmp

                  memory/4340-5244-0x0000000007030000-0x0000000007038000-memory.dmp

                  memory/4340-5243-0x0000000007020000-0x000000000702A000-memory.dmp

                  memory/4340-5246-0x0000000074CE0000-0x000000007549C000-memory.dmp

                  memory/4340-5248-0x0000000007230000-0x000000000723C000-memory.dmp

                  memory/4340-5247-0x0000000007170000-0x0000000007202000-memory.dmp

                  memory/4340-5250-0x00000000073A0000-0x0000000007406000-memory.dmp

                  memory/4340-5252-0x0000000074CE0000-0x000000007549C000-memory.dmp

                  memory/4340-7138-0x0000000074CE0000-0x000000007549C000-memory.dmp

                  memory/4340-8174-0x0000000074CE0000-0x000000007549C000-memory.dmp

                  memory/4340-9395-0x0000000074CE0000-0x000000007549C000-memory.dmp