Analysis

  • max time kernel
    149s
  • max time network
    114s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    12/07/2026, 08:42

General

  • Target
    2026-07-12_a787a6eb5955d9e64935018bcef01f54_drokbk_elex_rhadamanthys_smoke-loader_stealc_stop_tofsee.exe
  • Size 2.0MB
  • Sample260712-kl2tsaez2m
  • SHA256 d0729d652004a3adbf9c77dbaf2a9d6c3dc62d724a63d858636b9860382dea48
  • 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
  • Custom signature
    Detects executables packed with SmartAssembly 7 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 5 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 2 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 2 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 3 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 49 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 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\2026-07-12_a787a6eb5955d9e64935018bcef01f54_drokbk_elex_rhadamanthys_smoke-loader_stealc_stop_tofsee.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-07-12_a787a6eb5955d9e64935018bcef01f54_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
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • System policy modification
    PID:5156
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\2026-07-12_a787a6eb5955d9e64935018bcef01f54_drokbk_elex_rhadamanthys_smoke-loader_stealc_stop_tofsee.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      PID:5980
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:\Windows.old\fontdrvhost.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      PID:4680
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:\Program Files (x86)\Mozilla Maintenance Service\logs\ShellHost.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      PID:6776
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:\Recovery\WindowsRE\csrss.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      PID:6952
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:\Windows\debug\lsass.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      PID:1724
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\MJSYi4xph3.bat"
      2⤵
        PID:6772
        • C:\Windows\SysWOW64\w32tm.exe
          w32tm /stripchart /computer:localhost /period:5 /dataonly /samples:2
          3⤵
            PID:1260
            • C:\Windows\system32\w32tm.exe
              w32tm /stripchart /computer:localhost /period:5 /dataonly /samples:2
              4⤵
                PID:248
            • C:\Windows\debug\lsass.exe
              "C:\Windows\debug\lsass.exe"
              3⤵
                PID:4496
          • C:\Windows\system32\schtasks.exe
            schtasks.exe /create /tn "fontdrvhostf" /sc MINUTE /mo 14 /tr "'C:\Windows.old\fontdrvhost.exe'" /f
            1⤵
            • Process spawned unexpected child process
            • Scheduled Task/Job: Scheduled Task
            PID:5144
          • C:\Windows\system32\schtasks.exe
            schtasks.exe /create /tn "fontdrvhost" /sc ONLOGON /tr "'C:\Windows.old\fontdrvhost.exe'" /rl HIGHEST /f
            1⤵
            • Process spawned unexpected child process
            • Scheduled Task/Job: Scheduled Task
            PID:6012
          • C:\Windows\system32\schtasks.exe
            schtasks.exe /create /tn "fontdrvhostf" /sc MINUTE /mo 6 /tr "'C:\Windows.old\fontdrvhost.exe'" /rl HIGHEST /f
            1⤵
            • Process spawned unexpected child process
            • Scheduled Task/Job: Scheduled Task
            PID:2180
          • C:\Windows\system32\schtasks.exe
            schtasks.exe /create /tn "ShellHostS" /sc MINUTE /mo 8 /tr "'C:\Program Files (x86)\Mozilla Maintenance Service\logs\ShellHost.exe'" /f
            1⤵
            • Process spawned unexpected child process
            • Scheduled Task/Job: Scheduled Task
            PID:4956
          • C:\Windows\system32\schtasks.exe
            schtasks.exe /create /tn "ShellHost" /sc ONLOGON /tr "'C:\Program Files (x86)\Mozilla Maintenance Service\logs\ShellHost.exe'" /rl HIGHEST /f
            1⤵
            • Process spawned unexpected child process
            • Scheduled Task/Job: Scheduled Task
            PID:4864
          • C:\Windows\system32\schtasks.exe
            schtasks.exe /create /tn "ShellHostS" /sc MINUTE /mo 12 /tr "'C:\Program Files (x86)\Mozilla Maintenance Service\logs\ShellHost.exe'" /rl HIGHEST /f
            1⤵
            • Process spawned unexpected child process
            • Scheduled Task/Job: Scheduled Task
            PID:256
          • C:\Windows\system32\schtasks.exe
            schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 14 /tr "'C:\Recovery\WindowsRE\csrss.exe'" /f
            1⤵
            • Process spawned unexpected child process
            • Scheduled Task/Job: Scheduled Task
            PID:2524
          • C:\Windows.old\fontdrvhost.exe
            "C:\Windows.old\fontdrvhost.exe"
            1⤵
            • Executes dropped EXE
            • System Location Discovery: System Language Discovery
            • Suspicious use of AdjustPrivilegeToken
            PID:4408
          • C:\Program Files (x86)\Mozilla Maintenance Service\logs\ShellHost.exe
            "C:\Program Files (x86)\Mozilla Maintenance Service\logs\ShellHost.exe"
            1⤵
            • Executes dropped EXE
            • System Location Discovery: System Language Discovery
            • Suspicious use of AdjustPrivilegeToken
            PID:3032
          • C:\Windows\system32\schtasks.exe
            schtasks.exe /create /tn "csrss" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\csrss.exe'" /rl HIGHEST /f
            1⤵
            • Process spawned unexpected child process
            • Scheduled Task/Job: Scheduled Task
            PID:200
          • C:\Windows\system32\schtasks.exe
            schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 11 /tr "'C:\Recovery\WindowsRE\csrss.exe'" /rl HIGHEST /f
            1⤵
            • Process spawned unexpected child process
            • Scheduled Task/Job: Scheduled Task
            PID:4740
          • C:\Windows\system32\schtasks.exe
            schtasks.exe /create /tn "lsassl" /sc MINUTE /mo 14 /tr "'C:\Windows\debug\lsass.exe'" /f
            1⤵
            • Process spawned unexpected child process
            • Scheduled Task/Job: Scheduled Task
            PID:3552
          • C:\Windows\system32\schtasks.exe
            schtasks.exe /create /tn "lsass" /sc ONLOGON /tr "'C:\Windows\debug\lsass.exe'" /rl HIGHEST /f
            1⤵
            • Process spawned unexpected child process
            • Scheduled Task/Job: Scheduled Task
            PID:3404
          • C:\Windows\system32\schtasks.exe
            schtasks.exe /create /tn "lsassl" /sc MINUTE /mo 6 /tr "'C:\Windows\debug\lsass.exe'" /rl HIGHEST /f
            1⤵
            • Process spawned unexpected child process
            • Scheduled Task/Job: Scheduled Task
            PID:4064
          • C:\Windows\debug\lsass.exe
            "C:\Windows\debug\lsass.exe"
            1⤵
              PID:4868
            • C:\Recovery\WindowsRE\csrss.exe
              "C:\Recovery\WindowsRE\csrss.exe"
              1⤵
                PID:1500

              Network

                    MITRE ATT&CK Enterprise v16

                    Replay Monitor

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                    Downloads

                    csrss.exe

                    • Path C:\Recovery\WindowsRE\csrss.exe
                    • Size 2.0MB
                    • SHA256 8dc714dda94818b5ea144eb784537f7cba1284229b24beb2a51c409e4ff4575c
                    • MD5 SHA1 SHA512 SSDEEP TLSH

                    ModuleAnalysisCache

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\ModuleAnalysisCache
                    • Size 63KB
                    • SHA256 bc13df42b26603e46e9855edf6b8119be3753b65e3fdd3cda34428d56d702605
                    • MD5 SHA1 SHA512 SSDEEP TLSH

                    MJSYi4xph3.bat

                    • Path C:\Users\Admin\AppData\Local\Temp\MJSYi4xph3.bat
                    • Size 191B
                    • SHA256 ac37f63ceae7b41a16e5ec90edc8ea942d27b0d3e97d02664e5fd23e67aee2ae
                    • MD5 SHA1 SHA512 TLSH

                    __PSScriptPolicyTest_jwn51ewy.wsp.ps1

                    • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_jwn51ewy.wsp.ps1
                    • Size 60B
                    • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
                    • MD5 SHA1 SHA512 TLSH

                    fontdrvhost.exe

                    • Path C:\Windows.old\fontdrvhost.exe
                    • Size 2.0MB
                    • SHA256 d0729d652004a3adbf9c77dbaf2a9d6c3dc62d724a63d858636b9860382dea48
                    • MD5 SHA1 SHA512 SSDEEP TLSH

                    lsass.exe

                    • Path C:\Windows\debug\lsass.exe
                    • Size 2.0MB
                    • SHA256 343db5f3a1c142e1fdcd07faf4e4d57238c0206b1652204937f80ce59abf9898
                    • MD5 SHA1 SHA512 SSDEEP TLSH

                    memory/1724-23880-0x0000000006C60000-0x0000000006C80000-memory.dmp

                    memory/1724-23682-0x0000000071560000-0x00000000715AC000-memory.dmp

                    memory/1724-23539-0x00000000076B0000-0x00000000076E6000-memory.dmp

                    memory/4680-15737-0x0000000005C30000-0x000000000627A000-memory.dmp

                    memory/5156-30-0x0000000005260000-0x0000000005511000-memory.dmp

                    memory/5156-118-0x0000000005260000-0x0000000005511000-memory.dmp

                    memory/5156-32-0x0000000005260000-0x0000000005511000-memory.dmp

                    memory/5156-122-0x0000000005260000-0x0000000005511000-memory.dmp

                    memory/5156-132-0x0000000005260000-0x0000000005511000-memory.dmp

                    memory/5156-130-0x0000000005260000-0x0000000005511000-memory.dmp

                    memory/5156-128-0x0000000005260000-0x0000000005511000-memory.dmp

                    memory/5156-126-0x0000000005260000-0x0000000005511000-memory.dmp

                    memory/5156-124-0x0000000005260000-0x0000000005511000-memory.dmp

                    memory/5156-120-0x0000000005260000-0x0000000005511000-memory.dmp

                    memory/5156-18-0x0000000005260000-0x0000000005511000-memory.dmp

                    memory/5156-112-0x0000000005260000-0x0000000005511000-memory.dmp

                    memory/5156-110-0x0000000005260000-0x0000000005511000-memory.dmp

                    memory/5156-108-0x0000000005260000-0x0000000005511000-memory.dmp

                    memory/5156-106-0x0000000005260000-0x0000000005511000-memory.dmp

                    memory/5156-104-0x0000000005260000-0x0000000005511000-memory.dmp

                    memory/5156-102-0x0000000005260000-0x0000000005511000-memory.dmp

                    memory/5156-100-0x0000000005260000-0x0000000005511000-memory.dmp

                    memory/5156-98-0x0000000005260000-0x0000000005511000-memory.dmp

                    memory/5156-96-0x0000000005260000-0x0000000005511000-memory.dmp

                    memory/5156-94-0x0000000005260000-0x0000000005511000-memory.dmp

                    memory/5156-92-0x0000000005260000-0x0000000005511000-memory.dmp

                    memory/5156-90-0x0000000005260000-0x0000000005511000-memory.dmp

                    memory/5156-88-0x0000000005260000-0x0000000005511000-memory.dmp

                    memory/5156-86-0x0000000005260000-0x0000000005511000-memory.dmp

                    memory/5156-84-0x0000000005260000-0x0000000005511000-memory.dmp

                    memory/5156-82-0x0000000005260000-0x0000000005511000-memory.dmp

                    memory/5156-80-0x0000000005260000-0x0000000005511000-memory.dmp

                    memory/5156-78-0x0000000005260000-0x0000000005511000-memory.dmp

                    memory/5156-76-0x0000000005260000-0x0000000005511000-memory.dmp

                    memory/5156-70-0x0000000005260000-0x0000000005511000-memory.dmp

                    memory/5156-68-0x0000000005260000-0x0000000005511000-memory.dmp

                    memory/5156-66-0x0000000005260000-0x0000000005511000-memory.dmp

                    memory/5156-116-0x0000000005260000-0x0000000005511000-memory.dmp

                    memory/5156-114-0x0000000005260000-0x0000000005511000-memory.dmp

                    memory/5156-74-0x0000000005260000-0x0000000005511000-memory.dmp

                    memory/5156-73-0x0000000005260000-0x0000000005511000-memory.dmp

                    memory/5156-65-0x0000000005260000-0x0000000005511000-memory.dmp

                    memory/5156-60-0x0000000005260000-0x0000000005511000-memory.dmp

                    memory/5156-58-0x0000000005260000-0x0000000005511000-memory.dmp

                    memory/5156-56-0x0000000005260000-0x0000000005511000-memory.dmp

                    memory/5156-55-0x0000000005260000-0x0000000005511000-memory.dmp

                    memory/5156-52-0x0000000005260000-0x0000000005511000-memory.dmp

                    memory/5156-50-0x0000000005260000-0x0000000005511000-memory.dmp

                    memory/5156-48-0x0000000005260000-0x0000000005511000-memory.dmp

                    memory/5156-46-0x0000000005260000-0x0000000005511000-memory.dmp

                    memory/5156-42-0x0000000005260000-0x0000000005511000-memory.dmp

                    memory/5156-38-0x0000000005260000-0x0000000005511000-memory.dmp

                    memory/5156-40-0x0000000005260000-0x0000000005511000-memory.dmp

                    memory/5156-36-0x0000000005260000-0x0000000005511000-memory.dmp

                    memory/5156-17-0x0000000005260000-0x0000000005511000-memory.dmp

                    memory/5156-4-0x00000000057F0000-0x0000000005DAA000-memory.dmp

                    memory/5156-28-0x0000000005260000-0x0000000005511000-memory.dmp

                    memory/5156-26-0x0000000005260000-0x0000000005511000-memory.dmp

                    memory/5156-22-0x0000000005260000-0x0000000005511000-memory.dmp

                    memory/5156-20-0x0000000005260000-0x0000000005511000-memory.dmp

                    memory/5156-34-0x0000000005260000-0x0000000005511000-memory.dmp

                    memory/5156-24-0x0000000005260000-0x0000000005511000-memory.dmp

                    memory/5156-5252-0x0000000009D00000-0x0000000009D0A000-memory.dmp

                    memory/5156-12-0x0000000005260000-0x0000000005511000-memory.dmp

                    memory/5156-7-0x0000000005260000-0x0000000005511000-memory.dmp

                    memory/5156-8-0x0000000005260000-0x0000000005511000-memory.dmp

                    memory/5156-62-0x0000000005260000-0x0000000005511000-memory.dmp

                    memory/5156-45-0x0000000005260000-0x0000000005511000-memory.dmp

                    memory/5156-10-0x0000000005260000-0x0000000005511000-memory.dmp

                    memory/5156-1144-0x0000000074EA2000-0x0000000074EA3000-memory.dmp

                    memory/5156-1154-0x0000000074E90000-0x000000007564C000-memory.dmp

                    memory/5156-5229-0x0000000074E90000-0x000000007564C000-memory.dmp

                    memory/5156-5230-0x0000000002BB0000-0x0000000002BCC000-memory.dmp

                    memory/5156-5231-0x0000000002BE0000-0x0000000002C30000-memory.dmp

                    memory/5156-5232-0x0000000002C40000-0x0000000002C48000-memory.dmp

                    memory/5156-5233-0x0000000006760000-0x0000000006770000-memory.dmp

                    memory/5156-5234-0x0000000006770000-0x0000000006786000-memory.dmp

                    memory/5156-5235-0x00000000067B0000-0x00000000067B8000-memory.dmp

                    memory/5156-5236-0x00000000067C0000-0x00000000067D2000-memory.dmp

                    memory/5156-5237-0x0000000006800000-0x0000000006808000-memory.dmp

                    memory/5156-5238-0x0000000006E10000-0x0000000006E20000-memory.dmp

                    memory/5156-5239-0x0000000009100000-0x0000000009192000-memory.dmp

                    memory/5156-5240-0x00000000091A0000-0x00000000091AA000-memory.dmp

                    memory/5156-5242-0x00000000091C0000-0x00000000091CC000-memory.dmp

                    memory/5156-5241-0x00000000091B0000-0x00000000091B8000-memory.dmp

                    memory/5156-5243-0x00000000091D0000-0x00000000091D8000-memory.dmp

                    memory/5156-5245-0x00000000091F0000-0x0000000009202000-memory.dmp

                    memory/5156-5246-0x0000000009240000-0x000000000976C000-memory.dmp

                    memory/5156-5247-0x00000000097C0000-0x00000000097CC000-memory.dmp

                    memory/5156-5248-0x00000000097E0000-0x00000000097EC000-memory.dmp

                    memory/5156-5249-0x00000000097F0000-0x00000000097FC000-memory.dmp

                    memory/5156-5250-0x0000000009810000-0x000000000981C000-memory.dmp

                    memory/5156-5253-0x0000000009BC0000-0x0000000009BCE000-memory.dmp

                    memory/5156-5251-0x0000000009820000-0x0000000009828000-memory.dmp

                    memory/5156-14-0x0000000005260000-0x0000000005511000-memory.dmp

                    memory/5156-5256-0x0000000009C30000-0x0000000009C3A000-memory.dmp

                    memory/5156-5257-0x0000000074E90000-0x000000007564C000-memory.dmp

                    memory/5156-5255-0x0000000009C00000-0x0000000009C08000-memory.dmp

                    memory/5156-5254-0x0000000009BF0000-0x0000000009BF8000-memory.dmp

                    memory/5156-5258-0x0000000009C40000-0x0000000009C4C000-memory.dmp

                    memory/5156-5260-0x0000000006F90000-0x0000000006FF6000-memory.dmp

                    memory/5156-7622-0x0000000074E90000-0x000000007564C000-memory.dmp

                    memory/5156-8426-0x0000000074E90000-0x000000007564C000-memory.dmp

                    memory/5156-0-0x0000000074EA2000-0x0000000074EA3000-memory.dmp

                    memory/5156-1-0x0000000005530000-0x00000000057E8000-memory.dmp

                    memory/5156-5-0x0000000005260000-0x0000000005516000-memory.dmp

                    memory/5156-3-0x0000000074E90000-0x000000007564C000-memory.dmp

                    memory/5156-2-0x0000000074E90000-0x000000007564C000-memory.dmp

                    memory/5156-15755-0x0000000074E90000-0x000000007564C000-memory.dmp

                    memory/5156-6-0x0000000074E90000-0x000000007564C000-memory.dmp

                    memory/5980-15757-0x0000000005190000-0x00000000051AE000-memory.dmp

                    memory/5980-15743-0x0000000005CA0000-0x0000000005D06000-memory.dmp

                    memory/5980-15742-0x0000000005C00000-0x0000000005C22000-memory.dmp

                    memory/5980-24313-0x0000000071560000-0x00000000715AC000-memory.dmp

                    memory/6776-15758-0x0000000006AD0000-0x0000000006B1C000-memory.dmp

                    memory/6776-15490-0x0000000005290000-0x00000000052C6000-memory.dmp

                    memory/6952-15754-0x0000000005AF0000-0x0000000005E4B000-memory.dmp

                    memory/6952-24098-0x0000000071560000-0x00000000715AC000-memory.dmp