Analysis

  • max time kernel
    150s
  • max time network
    132s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    18/07/2026, 03:57

General

  • Target
    2026-07-17_4edbec244c274c17aadefb057a76b21a_drokbk_elex_rhadamanthys_smoke-loader_stealc_stop_tofsee.exe
  • Size 1.7MB
  • Sample260718-eh157aay31
  • SHA256 78979dc69673cc204095af1741572b9a7763089a534197ef6a42e105f730ecdf
  • 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 12 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
  • Command and Scripting Interpreter: PowerShell 1 TTPs 12 IoCs

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

  • Executes dropped EXE 3 IoCs
  • Adds Run key to start application 2 TTPs 8 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 5 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.

  • 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 12 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 36 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 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\2026-07-17_4edbec244c274c17aadefb057a76b21a_drokbk_elex_rhadamanthys_smoke-loader_stealc_stop_tofsee.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-07-17_4edbec244c274c17aadefb057a76b21a_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
    • Suspicious use of WriteProcessMemory
    • System policy modification
    PID:4328
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:/'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      PID:8168
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:/$Recycle.Bin/'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      PID:7904
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:/Documents and Settings/'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      PID:7980
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:/PerfLogs/'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      PID:8080
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:/Program Files/'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      PID:6268
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:/Program Files (x86)/'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      PID:7780
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:/ProgramData/'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      PID:3096
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:/Recovery/'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      PID:5084
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:/System Volume Information/'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      PID:6308
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:/Users/'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      PID:7256
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:/Windows/'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      PID:8172
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:/Windows.old/'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      PID:5520
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\fwAG7KGXHJ.bat"
      2⤵
      • Executes a command shell one-liner
      PID:8152
      • C:\Windows\SysWOW64\w32tm.exe
        w32tm /stripchart /computer:localhost /period:5 /dataonly /samples:2
        3⤵
          PID:8252
          • C:\Windows\system32\w32tm.exe
            w32tm /stripchart /computer:localhost /period:5 /dataonly /samples:2
            4⤵
              PID:6544
          • C:\Users\Public\Pictures\fontdrvhost.exe
            "C:\Users\Public\Pictures\fontdrvhost.exe"
            3⤵
              PID:9140
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "servicess" /sc MINUTE /mo 6 /tr "'C:\Program Files\MSBuild\Microsoft\Windows Workflow Foundation\v3.5\services.exe'" /f
          1⤵
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:2960
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "services" /sc ONLOGON /tr "'C:\Program Files\MSBuild\Microsoft\Windows Workflow Foundation\v3.5\services.exe'" /rl HIGHEST /f
          1⤵
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:3492
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "servicess" /sc MINUTE /mo 9 /tr "'C:\Program Files\MSBuild\Microsoft\Windows Workflow Foundation\v3.5\services.exe'" /rl HIGHEST /f
          1⤵
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:4148
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "sppsvcs" /sc MINUTE /mo 11 /tr "'C:\Recovery\WindowsRE\sppsvc.exe'" /f
          1⤵
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:4948
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "sppsvc" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\sppsvc.exe'" /rl HIGHEST /f
          1⤵
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:6120
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "sppsvcs" /sc MINUTE /mo 10 /tr "'C:\Recovery\WindowsRE\sppsvc.exe'" /rl HIGHEST /f
          1⤵
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:4304
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "dllhostd" /sc MINUTE /mo 5 /tr "'C:\Windows.old\dllhost.exe'" /f
          1⤵
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:4936
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "dllhost" /sc ONLOGON /tr "'C:\Windows.old\dllhost.exe'" /rl HIGHEST /f
          1⤵
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:4620
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "dllhostd" /sc MINUTE /mo 8 /tr "'C:\Windows.old\dllhost.exe'" /rl HIGHEST /f
          1⤵
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:1900
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "fontdrvhostf" /sc MINUTE /mo 12 /tr "'C:\Users\Public\Pictures\fontdrvhost.exe'" /f
          1⤵
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:3048
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "fontdrvhost" /sc ONLOGON /tr "'C:\Users\Public\Pictures\fontdrvhost.exe'" /rl HIGHEST /f
          1⤵
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:3496
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "fontdrvhostf" /sc MINUTE /mo 14 /tr "'C:\Users\Public\Pictures\fontdrvhost.exe'" /rl HIGHEST /f
          1⤵
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:4208
        • C:\Program Files\MSBuild\Microsoft\Windows Workflow Foundation\v3.5\services.exe
          "C:\Program Files\MSBuild\Microsoft\Windows Workflow Foundation\v3.5\services.exe"
          1⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious use of AdjustPrivilegeToken
          PID:3232
        • C:\Windows.old\dllhost.exe
          "C:\Windows.old\dllhost.exe"
          1⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious use of AdjustPrivilegeToken
          PID:4952
        • C:\Users\Public\Pictures\fontdrvhost.exe
          "C:\Users\Public\Pictures\fontdrvhost.exe"
          1⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious use of AdjustPrivilegeToken
          PID:4896
        • C:\Recovery\WindowsRE\sppsvc.exe
          "C:\Recovery\WindowsRE\sppsvc.exe"
          1⤵
            PID:6696

          Network

                MITRE ATT&CK Enterprise v16

                Replay Monitor

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                Downloads

                RCXC1A3.tmp

                • Path C:\Program Files\MSBuild\Microsoft\Windows Workflow Foundation\v3.5\RCXC1A3.tmp
                • Size 1.7MB
                • SHA256 1cf1c9d4e5584d7703ee1a26934c95bb1d9d0c77294bad36b6e30ef13a99abba
                • MD5 SHA1 SHA512 SSDEEP TLSH

                sppsvc.exe

                • Path C:\Recovery\WindowsRE\sppsvc.exe
                • Size 1.7MB
                • SHA256 21bee36a81308a33559625cac8efd40bba5e95fbc2f0a1dfa49392228e9c2e6c
                • MD5 SHA1 SHA512 SSDEEP TLSH

                __PSScriptPolicyTest_xtgxwkyh.twx.ps1

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

                fwAG7KGXHJ.bat

                • Path C:\Users\Admin\AppData\Local\Temp\fwAG7KGXHJ.bat
                • Size 205B
                • SHA256 7f588c7244b204d68485c97b924abcf34a35917112de48d2433074692f1b95cc
                • MD5 SHA1 SHA512 TLSH

                dllhost.exe

                • Path C:\Windows.old\dllhost.exe
                • Size 1.7MB
                • SHA256 78979dc69673cc204095af1741572b9a7763089a534197ef6a42e105f730ecdf
                • MD5 SHA1 SHA512 SSDEEP TLSH

                memory/4328-54-0x0000000005310000-0x0000000005584000-memory.dmp

                memory/4328-7249-0x00000000744D0000-0x0000000074C8C000-memory.dmp

                memory/4328-3-0x00000000744D0000-0x0000000074C8C000-memory.dmp

                memory/4328-6-0x0000000005310000-0x000000000558A000-memory.dmp

                memory/4328-5-0x00000000744D0000-0x0000000074C8C000-memory.dmp

                memory/4328-4-0x0000000005820000-0x0000000005DDA000-memory.dmp

                memory/4328-46-0x0000000005310000-0x0000000005584000-memory.dmp

                memory/4328-40-0x0000000005310000-0x0000000005584000-memory.dmp

                memory/4328-25-0x0000000005310000-0x0000000005584000-memory.dmp

                memory/4328-14-0x0000000005310000-0x0000000005584000-memory.dmp

                memory/4328-127-0x0000000005310000-0x0000000005584000-memory.dmp

                memory/4328-132-0x0000000005310000-0x0000000005584000-memory.dmp

                memory/4328-130-0x0000000005310000-0x0000000005584000-memory.dmp

                memory/4328-129-0x0000000005310000-0x0000000005584000-memory.dmp

                memory/4328-124-0x0000000005310000-0x0000000005584000-memory.dmp

                memory/4328-122-0x0000000005310000-0x0000000005584000-memory.dmp

                memory/4328-121-0x0000000005310000-0x0000000005584000-memory.dmp

                memory/4328-118-0x0000000005310000-0x0000000005584000-memory.dmp

                memory/4328-116-0x0000000005310000-0x0000000005584000-memory.dmp

                memory/4328-114-0x0000000005310000-0x0000000005584000-memory.dmp

                memory/4328-113-0x0000000005310000-0x0000000005584000-memory.dmp

                memory/4328-110-0x0000000005310000-0x0000000005584000-memory.dmp

                memory/4328-106-0x0000000005310000-0x0000000005584000-memory.dmp

                memory/4328-104-0x0000000005310000-0x0000000005584000-memory.dmp

                memory/4328-102-0x0000000005310000-0x0000000005584000-memory.dmp

                memory/4328-98-0x0000000005310000-0x0000000005584000-memory.dmp

                memory/4328-96-0x0000000005310000-0x0000000005584000-memory.dmp

                memory/4328-94-0x0000000005310000-0x0000000005584000-memory.dmp

                memory/4328-92-0x0000000005310000-0x0000000005584000-memory.dmp

                memory/4328-90-0x0000000005310000-0x0000000005584000-memory.dmp

                memory/4328-89-0x0000000005310000-0x0000000005584000-memory.dmp

                memory/4328-85-0x0000000005310000-0x0000000005584000-memory.dmp

                memory/4328-82-0x0000000005310000-0x0000000005584000-memory.dmp

                memory/4328-81-0x0000000005310000-0x0000000005584000-memory.dmp

                memory/4328-78-0x0000000005310000-0x0000000005584000-memory.dmp

                memory/4328-76-0x0000000005310000-0x0000000005584000-memory.dmp

                memory/4328-72-0x0000000005310000-0x0000000005584000-memory.dmp

                memory/4328-70-0x0000000005310000-0x0000000005584000-memory.dmp

                memory/4328-66-0x0000000005310000-0x0000000005584000-memory.dmp

                memory/4328-64-0x0000000005310000-0x0000000005584000-memory.dmp

                memory/4328-62-0x0000000005310000-0x0000000005584000-memory.dmp

                memory/4328-42-0x0000000005310000-0x0000000005584000-memory.dmp

                memory/4328-100-0x0000000005310000-0x0000000005584000-memory.dmp

                memory/4328-86-0x0000000005310000-0x0000000005584000-memory.dmp

                memory/4328-74-0x0000000005310000-0x0000000005584000-memory.dmp

                memory/4328-68-0x0000000005310000-0x0000000005584000-memory.dmp

                memory/4328-60-0x0000000005310000-0x0000000005584000-memory.dmp

                memory/4328-58-0x0000000005310000-0x0000000005584000-memory.dmp

                memory/4328-56-0x0000000005310000-0x0000000005584000-memory.dmp

                memory/4328-1-0x00000000055A0000-0x000000000581C000-memory.dmp

                memory/4328-52-0x0000000005310000-0x0000000005584000-memory.dmp

                memory/4328-50-0x0000000005310000-0x0000000005584000-memory.dmp

                memory/4328-2-0x00000000744D0000-0x0000000074C8C000-memory.dmp

                memory/4328-49-0x0000000005310000-0x0000000005584000-memory.dmp

                memory/4328-109-0x0000000005310000-0x0000000005584000-memory.dmp

                memory/4328-36-0x0000000005310000-0x0000000005584000-memory.dmp

                memory/4328-38-0x0000000005310000-0x0000000005584000-memory.dmp

                memory/4328-34-0x0000000005310000-0x0000000005584000-memory.dmp

                memory/4328-32-0x0000000005310000-0x0000000005584000-memory.dmp

                memory/4328-31-0x0000000005310000-0x0000000005584000-memory.dmp

                memory/4328-27-0x0000000005310000-0x0000000005584000-memory.dmp

                memory/4328-28-0x0000000005310000-0x0000000005584000-memory.dmp

                memory/4328-23-0x0000000005310000-0x0000000005584000-memory.dmp

                memory/4328-21-0x0000000005310000-0x0000000005584000-memory.dmp

                memory/4328-18-0x0000000005310000-0x0000000005584000-memory.dmp

                memory/4328-16-0x0000000005310000-0x0000000005584000-memory.dmp

                memory/4328-7-0x0000000005310000-0x0000000005584000-memory.dmp

                memory/4328-12-0x0000000005310000-0x0000000005584000-memory.dmp

                memory/4328-10-0x0000000005310000-0x0000000005584000-memory.dmp

                memory/4328-8-0x0000000005310000-0x0000000005584000-memory.dmp

                memory/4328-1739-0x00000000744D0000-0x0000000074C8C000-memory.dmp

                memory/4328-5228-0x00000000744D0000-0x0000000074C8C000-memory.dmp

                memory/4328-5229-0x0000000002B10000-0x0000000002B2C000-memory.dmp

                memory/4328-5230-0x0000000002B40000-0x0000000002B90000-memory.dmp

                memory/4328-5231-0x0000000002BA0000-0x0000000002BA8000-memory.dmp

                memory/4328-5232-0x00000000065F0000-0x0000000006600000-memory.dmp

                memory/4328-5233-0x0000000006650000-0x0000000006666000-memory.dmp

                memory/4328-5234-0x0000000006630000-0x0000000006638000-memory.dmp

                memory/4328-5235-0x0000000006670000-0x0000000006680000-memory.dmp

                memory/4328-5236-0x00000000066C0000-0x00000000066CA000-memory.dmp

                memory/4328-5237-0x00000000069F0000-0x00000000069FC000-memory.dmp

                memory/4328-5238-0x0000000006A00000-0x0000000006A12000-memory.dmp

                memory/4328-5239-0x0000000006A30000-0x0000000006F5C000-memory.dmp

                memory/4328-5240-0x0000000006FC0000-0x0000000006FCC000-memory.dmp

                memory/4328-5241-0x0000000006FD0000-0x0000000006FDC000-memory.dmp

                memory/4328-5244-0x00000000073B0000-0x00000000073BC000-memory.dmp

                memory/4328-5243-0x00000000073A0000-0x00000000073A8000-memory.dmp

                memory/4328-5242-0x0000000007390000-0x000000000739A000-memory.dmp

                memory/4328-5245-0x00000000073C0000-0x0000000007452000-memory.dmp

                memory/4328-5247-0x00000000074A0000-0x00000000074AC000-memory.dmp

                memory/4328-5246-0x00000000744D0000-0x0000000074C8C000-memory.dmp

                memory/4328-5249-0x00000000074C0000-0x0000000007526000-memory.dmp

                memory/4328-5260-0x00000000744D0000-0x0000000074C8C000-memory.dmp

                memory/4328-45-0x0000000005310000-0x0000000005584000-memory.dmp

                memory/4328-9049-0x00000000744D0000-0x0000000074C8C000-memory.dmp

                memory/4328-10475-0x00000000744D0000-0x0000000074C8C000-memory.dmp

                memory/4328-20982-0x00000000744D0000-0x0000000074C8C000-memory.dmp

                memory/4328-0-0x00000000744E2000-0x00000000744E3000-memory.dmp

                memory/7904-11824-0x0000000005700000-0x0000000005D4A000-memory.dmp

                memory/7904-10068-0x0000000002FB0000-0x0000000002FE6000-memory.dmp

                memory/8168-18016-0x0000000005610000-0x0000000005632000-memory.dmp

                memory/8168-18280-0x0000000005E10000-0x0000000005E76000-memory.dmp

                memory/8168-20983-0x00000000062B0000-0x00000000062CE000-memory.dmp

                memory/8168-20984-0x0000000006450000-0x000000000649C000-memory.dmp

                memory/8172-20960-0x0000000005A70000-0x0000000005DCB000-memory.dmp