Analysis

  • max time kernel
    31s
  • max time network
    128s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260629-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260629-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    29/06/2026, 20:02

General

  • Target
    2026-06-25_c0b4f5718cbe236d39164d7be2454bff_drokbk_elex_rhadamanthys_smoke-loader_stealc_stop_tofsee.exe
  • Size 1.7MB
  • Sample260629-ysb4laft4m
  • SHA256 a4db5e02a3e0769181c808c809c00a1bff2c672a5f47130251dc7c84e4be67ba
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Family: DcRat

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

  • Modifies WinLogon for persistence 2 TTPs 2 IoCs
  • Process spawned unexpected child process 24 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 4 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 2 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 24 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 5 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\2026-06-25_c0b4f5718cbe236d39164d7be2454bff_drokbk_elex_rhadamanthys_smoke-loader_stealc_stop_tofsee.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-06-25_c0b4f5718cbe236d39164d7be2454bff_drokbk_elex_rhadamanthys_smoke-loader_stealc_stop_tofsee.exe"
    1⤵
    • 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:6124
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "RuntimeBrokerR" /sc MINUTE /mo 5 /tr "'C:\Program Files\Windows NT\RuntimeBroker.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:6496
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "RuntimeBroker" /sc ONLOGON /tr "'C:\Program Files\Windows NT\RuntimeBroker.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4596
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "RuntimeBrokerR" /sc MINUTE /mo 7 /tr "'C:\Program Files\Windows NT\RuntimeBroker.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:6424
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "ShellHostS" /sc MINUTE /mo 6 /tr "'C:\Windows.old\ShellHost.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4860
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "ShellHost" /sc ONLOGON /tr "'C:\Windows.old\ShellHost.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1428
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "ShellHostS" /sc MINUTE /mo 10 /tr "'C:\Windows.old\ShellHost.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:3616
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "ctfmonc" /sc MINUTE /mo 9 /tr "'C:\Windows.old\ctfmon.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2884
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "ctfmon" /sc ONLOGON /tr "'C:\Windows.old\ctfmon.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:5336
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "ctfmonc" /sc MINUTE /mo 12 /tr "'C:\Windows.old\ctfmon.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:5160
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "lsassl" /sc MINUTE /mo 5 /tr "'C:\Recovery\WindowsRE\lsass.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:6772
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "lsass" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\lsass.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:6828
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "lsassl" /sc MINUTE /mo 8 /tr "'C:\Recovery\WindowsRE\lsass.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:5652
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "ctfmonc" /sc MINUTE /mo 5 /tr "'C:\Program Files (x86)\Windows Defender\es-ES\ctfmon.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:5932
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "ctfmon" /sc ONLOGON /tr "'C:\Program Files (x86)\Windows Defender\es-ES\ctfmon.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4436
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "ctfmonc" /sc MINUTE /mo 9 /tr "'C:\Program Files (x86)\Windows Defender\es-ES\ctfmon.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:5924
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "RegistryR" /sc MINUTE /mo 12 /tr "'C:\Program Files\Common Files\Registry.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:5172
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "Registry" /sc ONLOGON /tr "'C:\Program Files\Common Files\Registry.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2248
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "RegistryR" /sc MINUTE /mo 5 /tr "'C:\Program Files\Common Files\Registry.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2240
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "fontdrvhostf" /sc MINUTE /mo 12 /tr "'C:\Recovery\WindowsRE\fontdrvhost.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1852
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "fontdrvhost" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\fontdrvhost.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:6752
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "fontdrvhostf" /sc MINUTE /mo 5 /tr "'C:\Recovery\WindowsRE\fontdrvhost.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:624
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "spoolsvs" /sc MINUTE /mo 6 /tr "'C:\Users\Admin\PrintHood\spoolsv.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4336
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "spoolsv" /sc ONLOGON /tr "'C:\Users\Admin\PrintHood\spoolsv.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:3608
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "spoolsvs" /sc MINUTE /mo 11 /tr "'C:\Users\Admin\PrintHood\spoolsv.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4868
  • C:\Windows.old\ctfmon.exe
    "C:\Windows.old\ctfmon.exe"
    1⤵
      PID:1568
    • C:\Recovery\WindowsRE\fontdrvhost.exe
      "C:\Recovery\WindowsRE\fontdrvhost.exe"
      1⤵
        PID:6892
      • C:\Windows.old\ShellHost.exe
        "C:\Windows.old\ShellHost.exe"
        1⤵
          PID:6244
        • C:\Program Files\Windows NT\RuntimeBroker.exe
          "C:\Program Files\Windows NT\RuntimeBroker.exe"
          1⤵
            PID:5852
          • C:\Users\Admin\PrintHood\spoolsv.exe
            "C:\Users\Admin\PrintHood\spoolsv.exe"
            1⤵
              PID:7136
            • C:\Program Files (x86)\Windows Defender\es-ES\ctfmon.exe
              "C:\Program Files (x86)\Windows Defender\es-ES\ctfmon.exe"
              1⤵
                PID:6412
              • C:\Program Files\Common Files\Registry.exe
                "C:\Program Files\Common Files\Registry.exe"
                1⤵
                  PID:10620
                • C:\Recovery\WindowsRE\lsass.exe
                  "C:\Recovery\WindowsRE\lsass.exe"
                  1⤵
                    PID:5108

                  Network

                        MITRE ATT&CK Enterprise v16

                        Replay Monitor

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                        Downloads

                        ctfmon.exe

                        • Path C:\Windows.old\ctfmon.exe
                        • Size 1.7MB
                        • SHA256 a4db5e02a3e0769181c808c809c00a1bff2c672a5f47130251dc7c84e4be67ba
                        • MD5 SHA1 SHA512 SSDEEP TLSH

                        memory/6124-0-0x00000000743F2000-0x00000000743F3000-memory.dmp

                        memory/6124-1-0x00000000053F0000-0x000000000566C000-memory.dmp

                        memory/6124-3-0x00000000743E0000-0x0000000074B9C000-memory.dmp

                        memory/6124-2-0x0000000005670000-0x0000000005C2A000-memory.dmp

                        memory/6124-4-0x0000000005C30000-0x0000000005EAA000-memory.dmp

                        memory/6124-5-0x00000000743E0000-0x0000000074B9C000-memory.dmp

                        memory/6124-6-0x00000000743E0000-0x0000000074B9C000-memory.dmp

                        memory/6124-10-0x0000000005C30000-0x0000000005EA4000-memory.dmp

                        memory/6124-33-0x0000000005C30000-0x0000000005EA4000-memory.dmp

                        memory/6124-36-0x0000000005C30000-0x0000000005EA4000-memory.dmp

                        memory/6124-58-0x0000000005C30000-0x0000000005EA4000-memory.dmp

                        memory/6124-71-0x0000000005C30000-0x0000000005EA4000-memory.dmp

                        memory/6124-68-0x0000000005C30000-0x0000000005EA4000-memory.dmp

                        memory/6124-90-0x0000000005C30000-0x0000000005EA4000-memory.dmp

                        memory/6124-88-0x0000000005C30000-0x0000000005EA4000-memory.dmp

                        memory/6124-86-0x0000000005C30000-0x0000000005EA4000-memory.dmp

                        memory/6124-84-0x0000000005C30000-0x0000000005EA4000-memory.dmp

                        memory/6124-82-0x0000000005C30000-0x0000000005EA4000-memory.dmp

                        memory/6124-80-0x0000000005C30000-0x0000000005EA4000-memory.dmp

                        memory/6124-79-0x0000000005C30000-0x0000000005EA4000-memory.dmp

                        memory/6124-76-0x0000000005C30000-0x0000000005EA4000-memory.dmp

                        memory/6124-75-0x0000000005C30000-0x0000000005EA4000-memory.dmp

                        memory/6124-66-0x0000000005C30000-0x0000000005EA4000-memory.dmp

                        memory/6124-64-0x0000000005C30000-0x0000000005EA4000-memory.dmp

                        memory/6124-62-0x0000000005C30000-0x0000000005EA4000-memory.dmp

                        memory/6124-60-0x0000000005C30000-0x0000000005EA4000-memory.dmp

                        memory/6124-72-0x0000000005C30000-0x0000000005EA4000-memory.dmp

                        memory/6124-56-0x0000000005C30000-0x0000000005EA4000-memory.dmp

                        memory/6124-52-0x0000000005C30000-0x0000000005EA4000-memory.dmp

                        memory/6124-50-0x0000000005C30000-0x0000000005EA4000-memory.dmp

                        memory/6124-48-0x0000000005C30000-0x0000000005EA4000-memory.dmp

                        memory/6124-46-0x0000000005C30000-0x0000000005EA4000-memory.dmp

                        memory/6124-42-0x0000000005C30000-0x0000000005EA4000-memory.dmp

                        memory/6124-54-0x0000000005C30000-0x0000000005EA4000-memory.dmp

                        memory/6124-44-0x0000000005C30000-0x0000000005EA4000-memory.dmp

                        memory/6124-38-0x0000000005C30000-0x0000000005EA4000-memory.dmp

                        memory/6124-34-0x0000000005C30000-0x0000000005EA4000-memory.dmp

                        memory/6124-28-0x0000000005C30000-0x0000000005EA4000-memory.dmp

                        memory/6124-26-0x0000000005C30000-0x0000000005EA4000-memory.dmp

                        memory/6124-24-0x0000000005C30000-0x0000000005EA4000-memory.dmp

                        memory/6124-22-0x0000000005C30000-0x0000000005EA4000-memory.dmp

                        memory/6124-40-0x0000000005C30000-0x0000000005EA4000-memory.dmp

                        memory/6124-30-0x0000000005C30000-0x0000000005EA4000-memory.dmp

                        memory/6124-20-0x0000000005C30000-0x0000000005EA4000-memory.dmp

                        memory/6124-124-0x0000000005C30000-0x0000000005EA4000-memory.dmp

                        memory/6124-123-0x0000000005C30000-0x0000000005EA4000-memory.dmp

                        memory/6124-132-0x0000000005C30000-0x0000000005EA4000-memory.dmp

                        memory/6124-130-0x0000000005C30000-0x0000000005EA4000-memory.dmp

                        memory/6124-128-0x0000000005C30000-0x0000000005EA4000-memory.dmp

                        memory/6124-126-0x0000000005C30000-0x0000000005EA4000-memory.dmp

                        memory/6124-120-0x0000000005C30000-0x0000000005EA4000-memory.dmp

                        memory/6124-118-0x0000000005C30000-0x0000000005EA4000-memory.dmp

                        memory/6124-116-0x0000000005C30000-0x0000000005EA4000-memory.dmp

                        memory/6124-114-0x0000000005C30000-0x0000000005EA4000-memory.dmp

                        memory/6124-112-0x0000000005C30000-0x0000000005EA4000-memory.dmp

                        memory/6124-110-0x0000000005C30000-0x0000000005EA4000-memory.dmp

                        memory/6124-108-0x0000000005C30000-0x0000000005EA4000-memory.dmp

                        memory/6124-106-0x0000000005C30000-0x0000000005EA4000-memory.dmp

                        memory/6124-104-0x0000000005C30000-0x0000000005EA4000-memory.dmp

                        memory/6124-102-0x0000000005C30000-0x0000000005EA4000-memory.dmp

                        memory/6124-100-0x0000000005C30000-0x0000000005EA4000-memory.dmp

                        memory/6124-98-0x0000000005C30000-0x0000000005EA4000-memory.dmp

                        memory/6124-96-0x0000000005C30000-0x0000000005EA4000-memory.dmp

                        memory/6124-94-0x0000000005C30000-0x0000000005EA4000-memory.dmp

                        memory/6124-92-0x0000000005C30000-0x0000000005EA4000-memory.dmp

                        memory/6124-14-0x0000000005C30000-0x0000000005EA4000-memory.dmp

                        memory/6124-12-0x0000000005C30000-0x0000000005EA4000-memory.dmp

                        memory/6124-8-0x0000000005C30000-0x0000000005EA4000-memory.dmp

                        memory/6124-7-0x0000000005C30000-0x0000000005EA4000-memory.dmp

                        memory/6124-18-0x0000000005C30000-0x0000000005EA4000-memory.dmp

                        memory/6124-16-0x0000000005C30000-0x0000000005EA4000-memory.dmp

                        memory/6124-1648-0x00000000743E0000-0x0000000074B9C000-memory.dmp

                        memory/6124-1647-0x00000000743F2000-0x00000000743F3000-memory.dmp

                        memory/6124-5229-0x00000000743E0000-0x0000000074B9C000-memory.dmp

                        memory/6124-5230-0x00000000029C0000-0x00000000029DC000-memory.dmp

                        memory/6124-5231-0x00000000029F0000-0x0000000002A40000-memory.dmp

                        memory/6124-5233-0x00000000062B0000-0x00000000062C0000-memory.dmp

                        memory/6124-5232-0x0000000002A50000-0x0000000002A58000-memory.dmp

                        memory/6124-5234-0x0000000006840000-0x0000000006856000-memory.dmp

                        memory/6124-5235-0x0000000006310000-0x0000000006318000-memory.dmp

                        memory/6124-5236-0x00000000069B0000-0x00000000069C0000-memory.dmp

                        memory/6124-5237-0x0000000006870000-0x000000000687A000-memory.dmp

                        memory/6124-5238-0x0000000006890000-0x000000000689C000-memory.dmp

                        memory/6124-5239-0x00000000068A0000-0x00000000068B2000-memory.dmp

                        memory/6124-5240-0x0000000007BB0000-0x00000000080DC000-memory.dmp

                        memory/6124-5241-0x0000000006930000-0x000000000693C000-memory.dmp

                        memory/6124-5242-0x0000000006940000-0x000000000694C000-memory.dmp

                        memory/6124-5244-0x0000000006990000-0x0000000006998000-memory.dmp

                        memory/6124-5245-0x0000000006A40000-0x0000000006A4C000-memory.dmp

                        memory/6124-5246-0x00000000083E0000-0x0000000008472000-memory.dmp

                        memory/6124-5243-0x0000000006980000-0x000000000698A000-memory.dmp

                        memory/6124-5247-0x00000000084A0000-0x00000000084AC000-memory.dmp

                        memory/6124-5249-0x00000000084F0000-0x0000000008556000-memory.dmp

                        memory/6124-5250-0x00000000743E0000-0x0000000074B9C000-memory.dmp

                        memory/6124-5251-0x00000000743E0000-0x0000000074B9C000-memory.dmp

                        memory/6124-7950-0x00000000743E0000-0x0000000074B9C000-memory.dmp

                        memory/6124-8866-0x00000000743E0000-0x0000000074B9C000-memory.dmp

                        memory/6124-9755-0x00000000743E0000-0x0000000074B9C000-memory.dmp