Analysis

  • max time kernel
    38s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260911-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    23/10/2026, 14:59

General

  • Target
    2026-10-23_14a6af2e28fba5d9ef528890f72fd221_drokbk_elex_rhadamanthys_smoke-loader_stealc_stop_tofsee.exe
  • Size 2.0MB
  • Sample261023-sc6elsew4r
  • SHA256 48501d09e300a6df6262e846d9fbbaa14c57248021f8f9825ae3d118d4999c69
  • 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 4 IoCs
  • Process spawned unexpected child process 15 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 7 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 6 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Drops file in Drivers directory 1 IoCs
  • Adds Run key to start application 2 TTPs 8 IoCs
  • Checks whether UAC is enabled 1 TTPs 2 IoCs
  • SmartAssembly .NET packer 7 IoCs

    Detects SmartAssembly .NET packer.

  • Drops file in Program Files directory 2 IoCs
  • Drops file in Windows directory 3 IoCs
  • Executes a command shell one-liner 1 TTPs 1 IoCs

    Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

  • 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 15 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 10 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\2026-10-23_14a6af2e28fba5d9ef528890f72fd221_drokbk_elex_rhadamanthys_smoke-loader_stealc_stop_tofsee.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-10-23_14a6af2e28fba5d9ef528890f72fd221_drokbk_elex_rhadamanthys_smoke-loader_stealc_stop_tofsee.exe"
    1⤵
    • 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 Program Files directory
    • 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:744
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\2026-10-23_14a6af2e28fba5d9ef528890f72fd221_drokbk_elex_rhadamanthys_smoke-loader_stealc_stop_tofsee.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      PID:4948
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:\Windows\INF\TermService\csrss.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      PID:5104
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:\Program Files\Reference Assemblies\Microsoft\Framework\TextInputHost.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      PID:3200
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:\Recovery\WindowsRE\spoolsv.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      PID:3756
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:\Recovery\WindowsRE\services.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      PID:4352
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:\Recovery\WindowsRE\SIHClient.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      PID:1180
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\FN0vw97krj.bat"
      2⤵
      • Executes a command shell one-liner
      PID:5768
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 10 /tr "'C:\Windows\INF\TermService\csrss.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1084
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "csrss" /sc ONLOGON /tr "'C:\Windows\INF\TermService\csrss.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4536
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 6 /tr "'C:\Windows\INF\TermService\csrss.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4872
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "TextInputHostT" /sc MINUTE /mo 7 /tr "'C:\Program Files\Reference Assemblies\Microsoft\Framework\TextInputHost.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4608
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "TextInputHost" /sc ONLOGON /tr "'C:\Program Files\Reference Assemblies\Microsoft\Framework\TextInputHost.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2380
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "TextInputHostT" /sc MINUTE /mo 7 /tr "'C:\Program Files\Reference Assemblies\Microsoft\Framework\TextInputHost.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2268
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "spoolsvs" /sc MINUTE /mo 11 /tr "'C:\Recovery\WindowsRE\spoolsv.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2016
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "spoolsv" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\spoolsv.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4236
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "spoolsvs" /sc MINUTE /mo 8 /tr "'C:\Recovery\WindowsRE\spoolsv.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4980
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "servicess" /sc MINUTE /mo 6 /tr "'C:\Recovery\WindowsRE\services.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:3724
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "services" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\services.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4216
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "servicess" /sc MINUTE /mo 12 /tr "'C:\Recovery\WindowsRE\services.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4256
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "SIHClientS" /sc MINUTE /mo 6 /tr "'C:\Recovery\WindowsRE\SIHClient.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:684
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "SIHClient" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\SIHClient.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4468
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "SIHClientS" /sc MINUTE /mo 8 /tr "'C:\Recovery\WindowsRE\SIHClient.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:3348
  • C:\Windows\INF\TermService\csrss.exe
    "C:\Windows\INF\TermService\csrss.exe"
    1⤵
      PID:1168
    • C:\Recovery\WindowsRE\SIHClient.exe
      "C:\Recovery\WindowsRE\SIHClient.exe"
      1⤵
        PID:3936
      • C:\Program Files\Reference Assemblies\Microsoft\Framework\TextInputHost.exe
        "C:\Program Files\Reference Assemblies\Microsoft\Framework\TextInputHost.exe"
        1⤵
          PID:2936
        • C:\Recovery\WindowsRE\services.exe
          "C:\Recovery\WindowsRE\services.exe"
          1⤵
            PID:3916
          • C:\Recovery\WindowsRE\spoolsv.exe
            "C:\Recovery\WindowsRE\spoolsv.exe"
            1⤵
              PID:4152

            Network

                  MITRE ATT&CK Enterprise v16

                  Replay Monitor

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                  Downloads

                  RCX47B6.tmp

                  • Path C:\Recovery\WindowsRE\RCX47B6.tmp
                  • Size 2.0MB
                  • SHA256 e7f7c90368783fc1c8382d3010f732d59050f3c0065ced027ee18b230a01563f
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  services.exe

                  • Path C:\Recovery\WindowsRE\services.exe
                  • Size 2.0MB
                  • SHA256 48501d09e300a6df6262e846d9fbbaa14c57248021f8f9825ae3d118d4999c69
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  FN0vw97krj.bat

                  • Path C:\Users\Admin\AppData\Local\Temp\FN0vw97krj.bat
                  • Size 201B
                  • SHA256 6947361e41d5962626dcf75341e9ff5139bb36b1fca673612eb130fb742c8b97
                  • MD5 SHA1 SHA512 TLSH

                  __PSScriptPolicyTest_243ctmyh.qq5.ps1

                  • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_243ctmyh.qq5.ps1
                  • Size 60B
                  • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
                  • MD5 SHA1 SHA512 TLSH

                  memory/744-92-0x0000000005300000-0x00000000055B1000-memory.dmp

                  memory/744-5248-0x0000000007BD0000-0x0000000007BDC000-memory.dmp

                  memory/744-2-0x00000000052F0000-0x0000000005300000-memory.dmp

                  memory/744-3-0x0000000005880000-0x0000000005E24000-memory.dmp

                  memory/744-4-0x0000000005300000-0x00000000055B6000-memory.dmp

                  memory/744-8-0x0000000005300000-0x00000000055B1000-memory.dmp

                  memory/744-32-0x0000000005300000-0x00000000055B1000-memory.dmp

                  memory/744-46-0x0000000005300000-0x00000000055B1000-memory.dmp

                  memory/744-48-0x0000000005300000-0x00000000055B1000-memory.dmp

                  memory/744-58-0x0000000005300000-0x00000000055B1000-memory.dmp

                  memory/744-56-0x0000000005300000-0x00000000055B1000-memory.dmp

                  memory/744-54-0x0000000005300000-0x00000000055B1000-memory.dmp

                  memory/744-52-0x0000000005300000-0x00000000055B1000-memory.dmp

                  memory/744-84-0x0000000005300000-0x00000000055B1000-memory.dmp

                  memory/744-44-0x0000000005300000-0x00000000055B1000-memory.dmp

                  memory/744-42-0x0000000005300000-0x00000000055B1000-memory.dmp

                  memory/744-40-0x0000000005300000-0x00000000055B1000-memory.dmp

                  memory/744-38-0x0000000005300000-0x00000000055B1000-memory.dmp

                  memory/744-36-0x0000000005300000-0x00000000055B1000-memory.dmp

                  memory/744-34-0x0000000005300000-0x00000000055B1000-memory.dmp

                  memory/744-26-0x0000000005300000-0x00000000055B1000-memory.dmp

                  memory/744-24-0x0000000005300000-0x00000000055B1000-memory.dmp

                  memory/744-22-0x0000000005300000-0x00000000055B1000-memory.dmp

                  memory/744-30-0x0000000005300000-0x00000000055B1000-memory.dmp

                  memory/744-28-0x0000000005300000-0x00000000055B1000-memory.dmp

                  memory/744-20-0x0000000005300000-0x00000000055B1000-memory.dmp

                  memory/744-18-0x0000000005300000-0x00000000055B1000-memory.dmp

                  memory/744-16-0x0000000005300000-0x00000000055B1000-memory.dmp

                  memory/744-15-0x0000000005300000-0x00000000055B1000-memory.dmp

                  memory/744-12-0x0000000005300000-0x00000000055B1000-memory.dmp

                  memory/744-10-0x0000000005300000-0x00000000055B1000-memory.dmp

                  memory/744-6-0x0000000005300000-0x00000000055B1000-memory.dmp

                  memory/744-5-0x0000000005300000-0x00000000055B1000-memory.dmp

                  memory/744-66-0x0000000005300000-0x00000000055B1000-memory.dmp

                  memory/744-120-0x0000000005300000-0x00000000055B1000-memory.dmp

                  memory/744-122-0x0000000005300000-0x00000000055B1000-memory.dmp

                  memory/744-130-0x0000000005300000-0x00000000055B1000-memory.dmp

                  memory/744-128-0x0000000005300000-0x00000000055B1000-memory.dmp

                  memory/744-126-0x0000000005300000-0x00000000055B1000-memory.dmp

                  memory/744-124-0x0000000005300000-0x00000000055B1000-memory.dmp

                  memory/744-118-0x0000000005300000-0x00000000055B1000-memory.dmp

                  memory/744-116-0x0000000005300000-0x00000000055B1000-memory.dmp

                  memory/744-114-0x0000000005300000-0x00000000055B1000-memory.dmp

                  memory/744-112-0x0000000005300000-0x00000000055B1000-memory.dmp

                  memory/744-110-0x0000000005300000-0x00000000055B1000-memory.dmp

                  memory/744-108-0x0000000005300000-0x00000000055B1000-memory.dmp

                  memory/744-106-0x0000000005300000-0x00000000055B1000-memory.dmp

                  memory/744-104-0x0000000005300000-0x00000000055B1000-memory.dmp

                  memory/744-102-0x0000000005300000-0x00000000055B1000-memory.dmp

                  memory/744-98-0x0000000005300000-0x00000000055B1000-memory.dmp

                  memory/744-96-0x0000000005300000-0x00000000055B1000-memory.dmp

                  memory/744-100-0x0000000005300000-0x00000000055B1000-memory.dmp

                  memory/744-0-0x00000000052F0000-0x0000000005300000-memory.dmp

                  memory/744-90-0x0000000005300000-0x00000000055B1000-memory.dmp

                  memory/744-1-0x00000000055C0000-0x0000000005878000-memory.dmp

                  memory/744-88-0x0000000005300000-0x00000000055B1000-memory.dmp

                  memory/744-50-0x0000000005300000-0x00000000055B1000-memory.dmp

                  memory/744-83-0x0000000005300000-0x00000000055B1000-memory.dmp

                  memory/744-80-0x0000000005300000-0x00000000055B1000-memory.dmp

                  memory/744-78-0x0000000005300000-0x00000000055B1000-memory.dmp

                  memory/744-76-0x0000000005300000-0x00000000055B1000-memory.dmp

                  memory/744-72-0x0000000005300000-0x00000000055B1000-memory.dmp

                  memory/744-70-0x0000000005300000-0x00000000055B1000-memory.dmp

                  memory/744-64-0x0000000005300000-0x00000000055B1000-memory.dmp

                  memory/744-62-0x0000000005300000-0x00000000055B1000-memory.dmp

                  memory/744-94-0x0000000005300000-0x00000000055B1000-memory.dmp

                  memory/744-60-0x0000000005300000-0x00000000055B1000-memory.dmp

                  memory/744-74-0x0000000005300000-0x00000000055B1000-memory.dmp

                  memory/744-68-0x0000000005300000-0x00000000055B1000-memory.dmp

                  memory/744-1677-0x00000000052F0000-0x0000000005300000-memory.dmp

                  memory/744-2022-0x00000000052F0000-0x0000000005300000-memory.dmp

                  memory/744-2235-0x00000000052F0000-0x0000000005300000-memory.dmp

                  memory/744-5228-0x00000000052F0000-0x0000000005300000-memory.dmp

                  memory/744-5229-0x0000000002A10000-0x0000000002A2C000-memory.dmp

                  memory/744-5230-0x0000000002A40000-0x0000000002A90000-memory.dmp

                  memory/744-5232-0x00000000063D0000-0x00000000063E0000-memory.dmp

                  memory/744-5231-0x0000000002AA0000-0x0000000002AA8000-memory.dmp

                  memory/744-5233-0x0000000006410000-0x0000000006426000-memory.dmp

                  memory/744-5235-0x0000000007990000-0x00000000079A2000-memory.dmp

                  memory/744-5234-0x0000000007840000-0x0000000007848000-memory.dmp

                  memory/744-5236-0x00000000078B0000-0x00000000078B8000-memory.dmp

                  memory/744-5237-0x0000000007850000-0x0000000007860000-memory.dmp

                  memory/744-5238-0x00000000078D0000-0x0000000007962000-memory.dmp

                  memory/744-5239-0x0000000007970000-0x000000000797A000-memory.dmp

                  memory/744-5240-0x0000000007AB0000-0x0000000007AB8000-memory.dmp

                  memory/744-5241-0x0000000007AD0000-0x0000000007ADC000-memory.dmp

                  memory/744-5242-0x0000000007AE0000-0x0000000007AE8000-memory.dmp

                  memory/744-5244-0x0000000007B00000-0x0000000007B12000-memory.dmp

                  memory/744-5245-0x0000000008F80000-0x00000000094AC000-memory.dmp

                  memory/744-5246-0x0000000007BA0000-0x0000000007BAC000-memory.dmp

                  memory/744-5247-0x0000000007BC0000-0x0000000007BCC000-memory.dmp

                  memory/744-86-0x0000000005300000-0x00000000055B1000-memory.dmp

                  memory/744-5249-0x0000000007BF0000-0x0000000007BFC000-memory.dmp

                  memory/744-5250-0x0000000007CA0000-0x0000000007CA8000-memory.dmp

                  memory/744-5251-0x0000000007C00000-0x0000000007C0A000-memory.dmp

                  memory/744-5254-0x00000000097F0000-0x00000000097F8000-memory.dmp

                  memory/744-5256-0x0000000009810000-0x000000000981C000-memory.dmp

                  memory/744-5253-0x00000000097E0000-0x00000000097E8000-memory.dmp

                  memory/744-5255-0x0000000009800000-0x000000000980A000-memory.dmp

                  memory/744-5259-0x00000000052F0000-0x0000000005300000-memory.dmp

                  memory/744-5252-0x00000000097B0000-0x00000000097BE000-memory.dmp

                  memory/744-5260-0x0000000007E50000-0x0000000007EB6000-memory.dmp

                  memory/744-7245-0x00000000052F0000-0x0000000005300000-memory.dmp

                  memory/744-8376-0x00000000052F0000-0x0000000005300000-memory.dmp

                  memory/3200-8378-0x0000000005A10000-0x0000000006038000-memory.dmp

                  memory/3200-8377-0x0000000003240000-0x0000000003276000-memory.dmp

                  memory/3756-16309-0x00000000062D0000-0x0000000006624000-memory.dmp

                  memory/5104-15800-0x0000000005800000-0x0000000005866000-memory.dmp

                  memory/5104-15797-0x0000000004FF0000-0x0000000005012000-memory.dmp