Analysis

  • max time kernel
    148s
  • max time network
    145s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    13/11/2026, 17:20

General

  • Target
    2026-11-11_10549728d48efc7a737a5cdf30a36be3_drokbk_elex_rhadamanthys_smoke-loader_stealc_stop_tofsee.exe
  • Size 2.0MB
  • Sample261113-vwl67ad141
  • SHA256 22fd00e4d09d5b13294742c81ef5089ff788a6f2524cecff8b0eed28f85924cb
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Family: DcRat 28 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 26 IoCs

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

  • UAC bypass 3 TTPs 3 IoCs
  • Custom signature
    Detects executables packed with SmartAssembly 7 IoCs
  • Drops file in Drivers directory 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Checks whether UAC is enabled 1 TTPs 2 IoCs
  • SmartAssembly .NET packer 7 IoCs

    Detects SmartAssembly .NET packer.

  • Drops file in Windows directory 2 IoCs
  • Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs

    The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

  • 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 26 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\2026-11-11_10549728d48efc7a737a5cdf30a36be3_drokbk_elex_rhadamanthys_smoke-loader_stealc_stop_tofsee.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-11-11_10549728d48efc7a737a5cdf30a36be3_drokbk_elex_rhadamanthys_smoke-loader_stealc_stop_tofsee.exe"
    1⤵
    • Family: DcRat
    • Modifies WinLogon for persistence
    • UAC bypass
    • Drops file in Drivers directory
    • Adds Run key to start application
    • Checks whether UAC is enabled
    • Drops file in Windows directory
    • Reads the TCP/IP host and domain name from the registry
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • System policy modification
    PID:4156
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "smsss" /sc MINUTE /mo 7 /tr "'C:\Windows\IdentityCRL\smss.exe'" /f
    1⤵
    • Family: DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2360
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "smss" /sc ONLOGON /tr "'C:\Windows\IdentityCRL\smss.exe'" /rl HIGHEST /f
    1⤵
    • Family: DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:3524
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "smsss" /sc MINUTE /mo 6 /tr "'C:\Windows\IdentityCRL\smss.exe'" /rl HIGHEST /f
    1⤵
    • Family: DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:3300
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 11 /tr "'C:\Windows.old\csrss.exe'" /f
    1⤵
    • Family: DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1880
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "csrss" /sc ONLOGON /tr "'C:\Windows.old\csrss.exe'" /rl HIGHEST /f
    1⤵
    • Family: DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4988
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 12 /tr "'C:\Windows.old\csrss.exe'" /rl HIGHEST /f
    1⤵
    • Family: DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1136
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "RegistryR" /sc MINUTE /mo 5 /tr "'C:\Windows.old\Registry.exe'" /f
    1⤵
    • Family: DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4808
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "Registry" /sc ONLOGON /tr "'C:\Windows.old\Registry.exe'" /rl HIGHEST /f
    1⤵
    • Family: DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4768
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "RegistryR" /sc MINUTE /mo 14 /tr "'C:\Windows.old\Registry.exe'" /rl HIGHEST /f
    1⤵
    • Family: DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4948
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "sppsvcs" /sc MINUTE /mo 7 /tr "'C:\Program Files\VideoLAN\VLC\hrtfs\sppsvc.exe'" /f
    1⤵
    • Family: DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1432
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "sppsvc" /sc ONLOGON /tr "'C:\Program Files\VideoLAN\VLC\hrtfs\sppsvc.exe'" /rl HIGHEST /f
    1⤵
    • Family: DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:3292
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "sppsvcs" /sc MINUTE /mo 12 /tr "'C:\Program Files\VideoLAN\VLC\hrtfs\sppsvc.exe'" /rl HIGHEST /f
    1⤵
    • Family: DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:5064
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "smartscreens" /sc MINUTE /mo 8 /tr "'C:\Recovery\WindowsRE\smartscreen.exe'" /f
    1⤵
    • Family: DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:3920
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "smartscreen" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\smartscreen.exe'" /rl HIGHEST /f
    1⤵
    • Family: DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:3644
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "smartscreens" /sc MINUTE /mo 11 /tr "'C:\Recovery\WindowsRE\smartscreen.exe'" /rl HIGHEST /f
    1⤵
    • Family: DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2868
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "spoolsvs" /sc MINUTE /mo 10 /tr "'C:\Recovery\WindowsRE\spoolsv.exe'" /f
    1⤵
    • Family: DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:3556
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "spoolsv" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\spoolsv.exe'" /rl HIGHEST /f
    1⤵
    • Family: DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1140
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "spoolsvs" /sc MINUTE /mo 5 /tr "'C:\Recovery\WindowsRE\spoolsv.exe'" /rl HIGHEST /f
    1⤵
    • Family: DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2752
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "SearchHostS" /sc MINUTE /mo 10 /tr "'C:\Recovery\WindowsRE\SearchHost.exe'" /f
    1⤵
    • Family: DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:6132
  • C:\Windows.old\csrss.exe
    "C:\Windows.old\csrss.exe"
    1⤵
      PID:5220
    • C:\Windows.old\Registry.exe
      "C:\Windows.old\Registry.exe"
      1⤵
        PID:4776
      • C:\Recovery\WindowsRE\spoolsv.exe
        "C:\Recovery\WindowsRE\spoolsv.exe"
        1⤵
          PID:6096
        • C:\Windows\IdentityCRL\smss.exe
          "C:\Windows\IdentityCRL\smss.exe"
          1⤵
            PID:5604
          • C:\Windows\system32\schtasks.exe
            schtasks.exe /create /tn "SearchHost" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\SearchHost.exe'" /rl HIGHEST /f
            1⤵
            • Family: DcRat
            • Process spawned unexpected child process
            • Scheduled Task/Job: Scheduled Task
            PID:1160
          • C:\Windows\system32\schtasks.exe
            schtasks.exe /create /tn "SearchHostS" /sc MINUTE /mo 6 /tr "'C:\Recovery\WindowsRE\SearchHost.exe'" /rl HIGHEST /f
            1⤵
            • Family: DcRat
            • Process spawned unexpected child process
            • Scheduled Task/Job: Scheduled Task
            PID:5056
          • C:\Windows\system32\schtasks.exe
            schtasks.exe /create /tn "dllhostd" /sc MINUTE /mo 12 /tr "'C:\Windows\twain_32\dllhost.exe'" /f
            1⤵
            • Family: DcRat
            • Process spawned unexpected child process
            • Scheduled Task/Job: Scheduled Task
            PID:1512
          • C:\Windows\system32\schtasks.exe
            schtasks.exe /create /tn "dllhost" /sc ONLOGON /tr "'C:\Windows\twain_32\dllhost.exe'" /rl HIGHEST /f
            1⤵
            • Family: DcRat
            • Process spawned unexpected child process
            • Scheduled Task/Job: Scheduled Task
            PID:6676
          • C:\Windows\system32\schtasks.exe
            schtasks.exe /create /tn "dllhostd" /sc MINUTE /mo 12 /tr "'C:\Windows\twain_32\dllhost.exe'" /rl HIGHEST /f
            1⤵
            • Family: DcRat
            • Process spawned unexpected child process
            • Scheduled Task/Job: Scheduled Task
            PID:3684
          • C:\Windows\system32\schtasks.exe
            schtasks.exe /create /tn "RuntimeBrokerR" /sc MINUTE /mo 8 /tr "'C:\Windows.old\RuntimeBroker.exe'" /f
            1⤵
            • Family: DcRat
            • Process spawned unexpected child process
            • Scheduled Task/Job: Scheduled Task
            PID:6048
          • C:\Windows\system32\schtasks.exe
            schtasks.exe /create /tn "RuntimeBroker" /sc ONLOGON /tr "'C:\Windows.old\RuntimeBroker.exe'" /rl HIGHEST /f
            1⤵
            • Family: DcRat
            • Process spawned unexpected child process
            • Scheduled Task/Job: Scheduled Task
            PID:4800

          Network

                MITRE ATT&CK Enterprise v16

                Replay Monitor

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                Downloads

                sppsvc.exe

                • Path C:\Program Files\VideoLAN\VLC\hrtfs\sppsvc.exe
                • Size 2.0MB
                • SHA256 22fd00e4d09d5b13294742c81ef5089ff788a6f2524cecff8b0eed28f85924cb
                • MD5 SHA1 SHA512 SSDEEP TLSH

                memory/4156-0-0x0000000074792000-0x0000000074793000-memory.dmp

                memory/4156-1-0x0000000005420000-0x00000000056D8000-memory.dmp

                memory/4156-2-0x0000000074780000-0x0000000074F3C000-memory.dmp

                memory/4156-3-0x00000000056E0000-0x0000000005C9A000-memory.dmp

                memory/4156-5-0x0000000074780000-0x0000000074F3C000-memory.dmp

                memory/4156-4-0x0000000005160000-0x0000000005416000-memory.dmp

                memory/4156-6-0x0000000074780000-0x0000000074F3C000-memory.dmp

                memory/4156-17-0x0000000005160000-0x0000000005411000-memory.dmp

                memory/4156-22-0x0000000005160000-0x0000000005411000-memory.dmp

                memory/4156-111-0x0000000005160000-0x0000000005411000-memory.dmp

                memory/4156-112-0x0000000005160000-0x0000000005411000-memory.dmp

                memory/4156-82-0x0000000005160000-0x0000000005411000-memory.dmp

                memory/4156-130-0x0000000005160000-0x0000000005411000-memory.dmp

                memory/4156-128-0x0000000005160000-0x0000000005411000-memory.dmp

                memory/4156-126-0x0000000005160000-0x0000000005411000-memory.dmp

                memory/4156-124-0x0000000005160000-0x0000000005411000-memory.dmp

                memory/4156-122-0x0000000005160000-0x0000000005411000-memory.dmp

                memory/4156-120-0x0000000005160000-0x0000000005411000-memory.dmp

                memory/4156-119-0x0000000005160000-0x0000000005411000-memory.dmp

                memory/4156-116-0x0000000005160000-0x0000000005411000-memory.dmp

                memory/4156-114-0x0000000005160000-0x0000000005411000-memory.dmp

                memory/4156-108-0x0000000005160000-0x0000000005411000-memory.dmp

                memory/4156-106-0x0000000005160000-0x0000000005411000-memory.dmp

                memory/4156-104-0x0000000005160000-0x0000000005411000-memory.dmp

                memory/4156-102-0x0000000005160000-0x0000000005411000-memory.dmp

                memory/4156-100-0x0000000005160000-0x0000000005411000-memory.dmp

                memory/4156-98-0x0000000005160000-0x0000000005411000-memory.dmp

                memory/4156-96-0x0000000005160000-0x0000000005411000-memory.dmp

                memory/4156-94-0x0000000005160000-0x0000000005411000-memory.dmp

                memory/4156-92-0x0000000005160000-0x0000000005411000-memory.dmp

                memory/4156-91-0x0000000005160000-0x0000000005411000-memory.dmp

                memory/4156-84-0x0000000005160000-0x0000000005411000-memory.dmp

                memory/4156-80-0x0000000005160000-0x0000000005411000-memory.dmp

                memory/4156-87-0x0000000005160000-0x0000000005411000-memory.dmp

                memory/4156-88-0x0000000005160000-0x0000000005411000-memory.dmp

                memory/4156-78-0x0000000005160000-0x0000000005411000-memory.dmp

                memory/4156-76-0x0000000005160000-0x0000000005411000-memory.dmp

                memory/4156-72-0x0000000005160000-0x0000000005411000-memory.dmp

                memory/4156-70-0x0000000005160000-0x0000000005411000-memory.dmp

                memory/4156-68-0x0000000005160000-0x0000000005411000-memory.dmp

                memory/4156-66-0x0000000005160000-0x0000000005411000-memory.dmp

                memory/4156-64-0x0000000005160000-0x0000000005411000-memory.dmp

                memory/4156-62-0x0000000005160000-0x0000000005411000-memory.dmp

                memory/4156-61-0x0000000005160000-0x0000000005411000-memory.dmp

                memory/4156-56-0x0000000005160000-0x0000000005411000-memory.dmp

                memory/4156-54-0x0000000005160000-0x0000000005411000-memory.dmp

                memory/4156-52-0x0000000005160000-0x0000000005411000-memory.dmp

                memory/4156-50-0x0000000005160000-0x0000000005411000-memory.dmp

                memory/4156-48-0x0000000005160000-0x0000000005411000-memory.dmp

                memory/4156-46-0x0000000005160000-0x0000000005411000-memory.dmp

                memory/4156-44-0x0000000005160000-0x0000000005411000-memory.dmp

                memory/4156-42-0x0000000005160000-0x0000000005411000-memory.dmp

                memory/4156-74-0x0000000005160000-0x0000000005411000-memory.dmp

                memory/4156-59-0x0000000005160000-0x0000000005411000-memory.dmp

                memory/4156-40-0x0000000005160000-0x0000000005411000-memory.dmp

                memory/4156-38-0x0000000005160000-0x0000000005411000-memory.dmp

                memory/4156-36-0x0000000005160000-0x0000000005411000-memory.dmp

                memory/4156-35-0x0000000005160000-0x0000000005411000-memory.dmp

                memory/4156-33-0x0000000005160000-0x0000000005411000-memory.dmp

                memory/4156-30-0x0000000005160000-0x0000000005411000-memory.dmp

                memory/4156-29-0x0000000005160000-0x0000000005411000-memory.dmp

                memory/4156-26-0x0000000005160000-0x0000000005411000-memory.dmp

                memory/4156-24-0x0000000005160000-0x0000000005411000-memory.dmp

                memory/4156-20-0x0000000005160000-0x0000000005411000-memory.dmp

                memory/4156-14-0x0000000005160000-0x0000000005411000-memory.dmp

                memory/4156-12-0x0000000005160000-0x0000000005411000-memory.dmp

                memory/4156-10-0x0000000005160000-0x0000000005411000-memory.dmp

                memory/4156-18-0x0000000005160000-0x0000000005411000-memory.dmp

                memory/4156-8-0x0000000005160000-0x0000000005411000-memory.dmp

                memory/4156-7-0x0000000005160000-0x0000000005411000-memory.dmp

                memory/4156-132-0x0000000005160000-0x0000000005411000-memory.dmp

                memory/4156-1841-0x0000000074792000-0x0000000074793000-memory.dmp

                memory/4156-1849-0x0000000074780000-0x0000000074F3C000-memory.dmp

                memory/4156-5229-0x0000000074780000-0x0000000074F3C000-memory.dmp

                memory/4156-5230-0x0000000002A90000-0x0000000002AAC000-memory.dmp

                memory/4156-5231-0x0000000002AC0000-0x0000000002B10000-memory.dmp

                memory/4156-5233-0x0000000006620000-0x0000000006630000-memory.dmp

                memory/4156-5234-0x0000000006630000-0x0000000006646000-memory.dmp

                memory/4156-5236-0x00000000066B0000-0x00000000066C2000-memory.dmp

                memory/4156-5235-0x0000000006670000-0x0000000006678000-memory.dmp

                memory/4156-5232-0x0000000002B20000-0x0000000002B28000-memory.dmp

                memory/4156-5237-0x0000000008FB0000-0x0000000008FB8000-memory.dmp

                memory/4156-5238-0x00000000066C0000-0x00000000066D0000-memory.dmp

                memory/4156-5239-0x0000000009100000-0x0000000009192000-memory.dmp

                memory/4156-5240-0x0000000008FA0000-0x0000000008FAA000-memory.dmp

                memory/4156-5241-0x0000000008FC0000-0x0000000008FC8000-memory.dmp

                memory/4156-5242-0x0000000008FE0000-0x0000000008FEC000-memory.dmp

                memory/4156-5243-0x0000000008FF0000-0x0000000008FF8000-memory.dmp

                memory/4156-5245-0x0000000009010000-0x0000000009022000-memory.dmp

                memory/4156-5246-0x00000000091A0000-0x00000000096CC000-memory.dmp

                memory/4156-5247-0x00000000090B0000-0x00000000090BC000-memory.dmp

                memory/4156-5248-0x00000000090D0000-0x00000000090DC000-memory.dmp

                memory/4156-5249-0x00000000090E0000-0x00000000090EC000-memory.dmp

                memory/4156-5250-0x00000000096D0000-0x00000000096DC000-memory.dmp

                memory/4156-5251-0x00000000096E0000-0x00000000096E8000-memory.dmp

                memory/4156-5253-0x0000000009A90000-0x0000000009A9E000-memory.dmp

                memory/4156-5256-0x0000000009AE0000-0x0000000009AEA000-memory.dmp

                memory/4156-5255-0x0000000009AD0000-0x0000000009AD8000-memory.dmp

                memory/4156-5254-0x0000000009AC0000-0x0000000009AC8000-memory.dmp

                memory/4156-5257-0x0000000009B10000-0x0000000009B1C000-memory.dmp

                memory/4156-5258-0x0000000074780000-0x0000000074F3C000-memory.dmp

                memory/4156-5252-0x0000000009A80000-0x0000000009A8A000-memory.dmp

                memory/4156-5261-0x0000000006CF0000-0x0000000006D56000-memory.dmp

                memory/4156-6474-0x0000000074780000-0x0000000074F3C000-memory.dmp

                memory/4156-7642-0x0000000074780000-0x0000000074F3C000-memory.dmp