Analysis

  • max time kernel
    37s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260130-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260130-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    28/04/2026, 02:02

General

  • Target
    2026-04-28_b17f0939eb307b58577153b3985fcc66_drokbk_elex_rhadamanthys_smoke-loader_stealc_stop_tofsee.exe
  • Size 2.0MB
  • Sample260428-cf5pgscw61
  • SHA256 9c1009f84b54ec0ddd80a43e2c92981ba1209b9e7592c427ce618a509a024dde
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Family: DcRat 20 IoCs

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

  • Modifies WinLogon for persistence 2 TTPs 6 IoCs
  • Process spawned unexpected child process 18 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 7 IoCs

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

  • Drops file in Drivers directory 1 IoCs
  • Executes dropped EXE 3 IoCs
  • Adds Run key to start application 2 TTPs 12 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 10 IoCs
  • Drops file in Windows directory 10 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 4 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 18 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 30 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 7 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\2026-04-28_b17f0939eb307b58577153b3985fcc66_drokbk_elex_rhadamanthys_smoke-loader_stealc_stop_tofsee.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-04-28_b17f0939eb307b58577153b3985fcc66_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 Program Files directory
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    • System policy modification
    PID:3432
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\2026-04-28_b17f0939eb307b58577153b3985fcc66_drokbk_elex_rhadamanthys_smoke-loader_stealc_stop_tofsee.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      PID:1492
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:\Windows\twain_32\sppsvc.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      PID:3048
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:\Windows\Logs\winlogon.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      PID:1800
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:\Program Files (x86)\Google\GoogleUpdater\OfficeClickToRun.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      PID:404
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:\Users\Default User\csrss.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      PID:3128
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:\Program Files\Windows Portable Devices\OfficeClickToRun.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      PID:2936
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:\Recovery\WindowsRE\dwm.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      PID:4652
    • C:\Program Files (x86)\Google\GoogleUpdater\OfficeClickToRun.exe
      "C:\Program Files (x86)\Google\GoogleUpdater\OfficeClickToRun.exe"
      2⤵
        PID:2744
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "sppsvcs" /sc MINUTE /mo 14 /tr "'C:\Windows\twain_32\sppsvc.exe'" /f
      1⤵
      • Family: DcRat
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1092
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "sppsvc" /sc ONLOGON /tr "'C:\Windows\twain_32\sppsvc.exe'" /rl HIGHEST /f
      1⤵
      • Family: DcRat
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1868
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "sppsvcs" /sc MINUTE /mo 10 /tr "'C:\Windows\twain_32\sppsvc.exe'" /rl HIGHEST /f
      1⤵
      • Family: DcRat
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2608
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "winlogonw" /sc MINUTE /mo 7 /tr "'C:\Windows\Logs\winlogon.exe'" /f
      1⤵
      • Family: DcRat
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:404
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "winlogon" /sc ONLOGON /tr "'C:\Windows\Logs\winlogon.exe'" /rl HIGHEST /f
      1⤵
      • Family: DcRat
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1856
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "winlogonw" /sc MINUTE /mo 10 /tr "'C:\Windows\Logs\winlogon.exe'" /rl HIGHEST /f
      1⤵
      • Family: DcRat
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:3360
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "OfficeClickToRunO" /sc MINUTE /mo 5 /tr "'C:\Program Files (x86)\Google\GoogleUpdater\OfficeClickToRun.exe'" /f
      1⤵
      • Family: DcRat
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2960
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "OfficeClickToRun" /sc ONLOGON /tr "'C:\Program Files (x86)\Google\GoogleUpdater\OfficeClickToRun.exe'" /rl HIGHEST /f
      1⤵
      • Family: DcRat
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:3972
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "OfficeClickToRunO" /sc MINUTE /mo 13 /tr "'C:\Program Files (x86)\Google\GoogleUpdater\OfficeClickToRun.exe'" /rl HIGHEST /f
      1⤵
      • Family: DcRat
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:4980
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 5 /tr "'C:\Users\Default User\csrss.exe'" /f
      1⤵
      • Family: DcRat
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:4704
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "csrss" /sc ONLOGON /tr "'C:\Users\Default User\csrss.exe'" /rl HIGHEST /f
      1⤵
      • Family: DcRat
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2788
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 13 /tr "'C:\Users\Default User\csrss.exe'" /rl HIGHEST /f
      1⤵
      • Family: DcRat
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1724
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "OfficeClickToRunO" /sc MINUTE /mo 9 /tr "'C:\Program Files\Windows Portable Devices\OfficeClickToRun.exe'" /f
      1⤵
      • Family: DcRat
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2928
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "OfficeClickToRun" /sc ONLOGON /tr "'C:\Program Files\Windows Portable Devices\OfficeClickToRun.exe'" /rl HIGHEST /f
      1⤵
      • Family: DcRat
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2184
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "OfficeClickToRunO" /sc MINUTE /mo 7 /tr "'C:\Program Files\Windows Portable Devices\OfficeClickToRun.exe'" /rl HIGHEST /f
      1⤵
      • Family: DcRat
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:3672
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "dwmd" /sc MINUTE /mo 14 /tr "'C:\Recovery\WindowsRE\dwm.exe'" /f
      1⤵
      • Family: DcRat
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:5032
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "dwm" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\dwm.exe'" /rl HIGHEST /f
      1⤵
      • Family: DcRat
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:4532
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "dwmd" /sc MINUTE /mo 14 /tr "'C:\Recovery\WindowsRE\dwm.exe'" /rl HIGHEST /f
      1⤵
      • Family: DcRat
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:4440
    • C:\Recovery\WindowsRE\dwm.exe
      "C:\Recovery\WindowsRE\dwm.exe"
      1⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      PID:3724
    • C:\Windows\Logs\winlogon.exe
      "C:\Windows\Logs\winlogon.exe"
      1⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      PID:3684
    • C:\Program Files\Windows Portable Devices\OfficeClickToRun.exe
      "C:\Program Files\Windows Portable Devices\OfficeClickToRun.exe"
      1⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:1900
    • C:\Windows\twain_32\sppsvc.exe
      "C:\Windows\twain_32\sppsvc.exe"
      1⤵
        PID:6300
      • C:\Program Files (x86)\Google\GoogleUpdater\OfficeClickToRun.exe
        "C:\Program Files (x86)\Google\GoogleUpdater\OfficeClickToRun.exe"
        1⤵
          PID:6212
        • C:\Users\Default User\csrss.exe
          "C:\Users\Default User\csrss.exe"
          1⤵
            PID:6240

          Network

                MITRE ATT&CK Enterprise v16

                Replay Monitor

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                Downloads

                OfficeClickToRun.exe

                • Path C:\Program Files\Windows Portable Devices\OfficeClickToRun.exe
                • Size 2.0MB
                • SHA256 9c1009f84b54ec0ddd80a43e2c92981ba1209b9e7592c427ce618a509a024dde
                • MD5 SHA1 SHA512 SSDEEP TLSH

                __PSScriptPolicyTest_qopydoi0.2vd.ps1

                • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_qopydoi0.2vd.ps1
                • Size 60B
                • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
                • MD5 SHA1 SHA512 TLSH

                memory/1492-7308-0x0000000004F00000-0x0000000004F36000-memory.dmp

                memory/1492-7467-0x0000000005580000-0x0000000005BA8000-memory.dmp

                memory/2936-11185-0x0000000005760000-0x00000000057C6000-memory.dmp

                memory/2936-11184-0x0000000005070000-0x0000000005092000-memory.dmp

                memory/3432-122-0x0000000005140000-0x00000000053F1000-memory.dmp

                memory/3432-5251-0x00000000087A0000-0x00000000087AA000-memory.dmp

                memory/3432-3-0x00000000056C0000-0x0000000005C64000-memory.dmp

                memory/3432-4-0x0000000005140000-0x00000000053F6000-memory.dmp

                memory/3432-5-0x0000000005140000-0x00000000053F1000-memory.dmp

                memory/3432-8-0x0000000005140000-0x00000000053F1000-memory.dmp

                memory/3432-20-0x0000000005140000-0x00000000053F1000-memory.dmp

                memory/3432-24-0x0000000005140000-0x00000000053F1000-memory.dmp

                memory/3432-42-0x0000000005140000-0x00000000053F1000-memory.dmp

                memory/3432-48-0x0000000005140000-0x00000000053F1000-memory.dmp

                memory/3432-68-0x0000000005140000-0x00000000053F1000-memory.dmp

                memory/3432-76-0x0000000005140000-0x00000000053F1000-memory.dmp

                memory/3432-80-0x0000000005140000-0x00000000053F1000-memory.dmp

                memory/3432-78-0x0000000005140000-0x00000000053F1000-memory.dmp

                memory/3432-74-0x0000000005140000-0x00000000053F1000-memory.dmp

                memory/3432-72-0x0000000005140000-0x00000000053F1000-memory.dmp

                memory/3432-70-0x0000000005140000-0x00000000053F1000-memory.dmp

                memory/3432-66-0x0000000005140000-0x00000000053F1000-memory.dmp

                memory/3432-64-0x0000000005140000-0x00000000053F1000-memory.dmp

                memory/3432-62-0x0000000005140000-0x00000000053F1000-memory.dmp

                memory/3432-60-0x0000000005140000-0x00000000053F1000-memory.dmp

                memory/3432-58-0x0000000005140000-0x00000000053F1000-memory.dmp

                memory/3432-56-0x0000000005140000-0x00000000053F1000-memory.dmp

                memory/3432-54-0x0000000005140000-0x00000000053F1000-memory.dmp

                memory/3432-52-0x0000000005140000-0x00000000053F1000-memory.dmp

                memory/3432-50-0x0000000005140000-0x00000000053F1000-memory.dmp

                memory/3432-46-0x0000000005140000-0x00000000053F1000-memory.dmp

                memory/3432-44-0x0000000005140000-0x00000000053F1000-memory.dmp

                memory/3432-40-0x0000000005140000-0x00000000053F1000-memory.dmp

                memory/3432-38-0x0000000005140000-0x00000000053F1000-memory.dmp

                memory/3432-36-0x0000000005140000-0x00000000053F1000-memory.dmp

                memory/3432-34-0x0000000005140000-0x00000000053F1000-memory.dmp

                memory/3432-33-0x0000000005140000-0x00000000053F1000-memory.dmp

                memory/3432-30-0x0000000005140000-0x00000000053F1000-memory.dmp

                memory/3432-26-0x0000000005140000-0x00000000053F1000-memory.dmp

                memory/3432-22-0x0000000005140000-0x00000000053F1000-memory.dmp

                memory/3432-28-0x0000000005140000-0x00000000053F1000-memory.dmp

                memory/3432-18-0x0000000005140000-0x00000000053F1000-memory.dmp

                memory/3432-16-0x0000000005140000-0x00000000053F1000-memory.dmp

                memory/3432-14-0x0000000005140000-0x00000000053F1000-memory.dmp

                memory/3432-12-0x0000000005140000-0x00000000053F1000-memory.dmp

                memory/3432-104-0x0000000005140000-0x00000000053F1000-memory.dmp

                memory/3432-10-0x0000000005140000-0x00000000053F1000-memory.dmp

                memory/3432-94-0x0000000005140000-0x00000000053F1000-memory.dmp

                memory/3432-100-0x0000000005140000-0x00000000053F1000-memory.dmp

                memory/3432-128-0x0000000005140000-0x00000000053F1000-memory.dmp

                memory/3432-130-0x0000000005140000-0x00000000053F1000-memory.dmp

                memory/3432-126-0x0000000005140000-0x00000000053F1000-memory.dmp

                memory/3432-1-0x0000000005400000-0x00000000056B8000-memory.dmp

                memory/3432-120-0x0000000005140000-0x00000000053F1000-memory.dmp

                memory/3432-118-0x0000000005140000-0x00000000053F1000-memory.dmp

                memory/3432-116-0x0000000005140000-0x00000000053F1000-memory.dmp

                memory/3432-2-0x0000000002AC0000-0x0000000002AD0000-memory.dmp

                memory/3432-112-0x0000000005140000-0x00000000053F1000-memory.dmp

                memory/3432-6-0x0000000005140000-0x00000000053F1000-memory.dmp

                memory/3432-98-0x0000000005140000-0x00000000053F1000-memory.dmp

                memory/3432-96-0x0000000005140000-0x00000000053F1000-memory.dmp

                memory/3432-92-0x0000000005140000-0x00000000053F1000-memory.dmp

                memory/3432-90-0x0000000005140000-0x00000000053F1000-memory.dmp

                memory/3432-86-0x0000000005140000-0x00000000053F1000-memory.dmp

                memory/3432-84-0x0000000005140000-0x00000000053F1000-memory.dmp

                memory/3432-124-0x0000000005140000-0x00000000053F1000-memory.dmp

                memory/3432-106-0x0000000005140000-0x00000000053F1000-memory.dmp

                memory/3432-114-0x0000000005140000-0x00000000053F1000-memory.dmp

                memory/3432-108-0x0000000005140000-0x00000000053F1000-memory.dmp

                memory/3432-102-0x0000000005140000-0x00000000053F1000-memory.dmp

                memory/3432-88-0x0000000005140000-0x00000000053F1000-memory.dmp

                memory/3432-82-0x0000000005140000-0x00000000053F1000-memory.dmp

                memory/3432-1519-0x0000000002AC0000-0x0000000002AD0000-memory.dmp

                memory/3432-1823-0x0000000002AC0000-0x0000000002AD0000-memory.dmp

                memory/3432-2105-0x0000000002AC0000-0x0000000002AD0000-memory.dmp

                memory/3432-5228-0x0000000002AC0000-0x0000000002AD0000-memory.dmp

                memory/3432-5229-0x0000000002460000-0x000000000247C000-memory.dmp

                memory/3432-5230-0x0000000002490000-0x00000000024E0000-memory.dmp

                memory/3432-5231-0x00000000024F0000-0x00000000024F8000-memory.dmp

                memory/3432-5232-0x00000000063D0000-0x00000000063E0000-memory.dmp

                memory/3432-5233-0x0000000006410000-0x0000000006426000-memory.dmp

                memory/3432-5234-0x0000000006B10000-0x0000000006B18000-memory.dmp

                memory/3432-5235-0x0000000006C60000-0x0000000006C72000-memory.dmp

                memory/3432-5236-0x0000000006B20000-0x0000000006B28000-memory.dmp

                memory/3432-5237-0x0000000006B80000-0x0000000006B90000-memory.dmp

                memory/3432-5239-0x0000000006BA0000-0x0000000006BAA000-memory.dmp

                memory/3432-5238-0x0000000006BB0000-0x0000000006C42000-memory.dmp

                memory/3432-5240-0x0000000006C50000-0x0000000006C58000-memory.dmp

                memory/3432-5241-0x0000000006DA0000-0x0000000006DAC000-memory.dmp

                memory/3432-5244-0x0000000006DD0000-0x0000000006DE2000-memory.dmp

                memory/3432-5242-0x0000000006DC0000-0x0000000006DC8000-memory.dmp

                memory/3432-5245-0x0000000007E30000-0x000000000835C000-memory.dmp

                memory/3432-5246-0x00000000083A0000-0x00000000083AC000-memory.dmp

                memory/3432-5247-0x00000000083C0000-0x00000000083CC000-memory.dmp

                memory/3432-5248-0x00000000083D0000-0x00000000083DC000-memory.dmp

                memory/3432-5249-0x00000000083F0000-0x00000000083FC000-memory.dmp

                memory/3432-5250-0x0000000008400000-0x0000000008408000-memory.dmp

                memory/3432-110-0x0000000005140000-0x00000000053F1000-memory.dmp

                memory/3432-5252-0x00000000087B0000-0x00000000087BE000-memory.dmp

                memory/3432-5254-0x00000000087F0000-0x00000000087F8000-memory.dmp

                memory/3432-5256-0x0000000008810000-0x000000000881C000-memory.dmp

                memory/3432-5255-0x0000000008800000-0x000000000880A000-memory.dmp

                memory/3432-5253-0x00000000087E0000-0x00000000087E8000-memory.dmp

                memory/3432-5257-0x0000000002AC0000-0x0000000002AD0000-memory.dmp

                memory/3432-5260-0x00000000089C0000-0x0000000008A26000-memory.dmp

                memory/3432-7645-0x0000000002AC0000-0x0000000002AD0000-memory.dmp

                memory/3432-8035-0x0000000002AC0000-0x0000000002AD0000-memory.dmp

                memory/3432-0-0x0000000002AC0000-0x0000000002AD0000-memory.dmp

                memory/4652-11519-0x0000000005A80000-0x0000000005DD4000-memory.dmp