Analysis

  • max time kernel
    34s
  • 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
    17/10/2026, 08:48

General

  • Target
    2026-10-16_b3cb0d6c3993988384007ef81a10d859_drokbk_elex_rhadamanthys_smoke-loader_stealc_stop_tofsee.exe
  • Size 1.7MB
  • Sample261017-kqtc7szybs
  • SHA256 196e13467a79682b65dcd282bbe9e916a255321b5c81f931097f0a96b63a4e0c
  • 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 2 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 5 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 11 IoCs

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

  • Adds Run key to start application 2 TTPs 4 IoCs
  • Checks whether UAC is enabled 1 TTPs 2 IoCs
  • SmartAssembly .NET packer 5 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 15 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 12 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\2026-10-16_b3cb0d6c3993988384007ef81a10d859_drokbk_elex_rhadamanthys_smoke-loader_stealc_stop_tofsee.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-10-16_b3cb0d6c3993988384007ef81a10d859_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 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:4632
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:/'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      PID:3216
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:/$Recycle.Bin/'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      PID:4104
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:/Documents and Settings/'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      PID:2616
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:/PerfLogs/'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      PID:5824
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:/Program Files/'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      PID:5548
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:/Program Files (x86)/'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      PID:5788
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:/ProgramData/'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      PID:1468
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:/Recovery/'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      PID:2252
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:/System Volume Information/'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      PID:5372
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:/Users/'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      PID:5588
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:/Windows/'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      PID:692
    • C:\Users\All Users\Desktop\SIHClient.exe
      "C:\Users\All Users\Desktop\SIHClient.exe"
      2⤵
        PID:5904
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "servicess" /sc MINUTE /mo 7 /tr "'C:\Recovery\WindowsRE\services.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1036
    • 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:1568
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "servicess" /sc MINUTE /mo 9 /tr "'C:\Recovery\WindowsRE\services.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:816
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "fontdrvhostf" /sc MINUTE /mo 11 /tr "'C:\Windows\LiveKernelReports\fontdrvhost.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:4208
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "fontdrvhost" /sc ONLOGON /tr "'C:\Windows\LiveKernelReports\fontdrvhost.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:3984
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "fontdrvhostf" /sc MINUTE /mo 14 /tr "'C:\Windows\LiveKernelReports\fontdrvhost.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2104
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "smsss" /sc MINUTE /mo 13 /tr "'C:\Users\Default\Cookies\smss.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1148
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "smss" /sc ONLOGON /tr "'C:\Users\Default\Cookies\smss.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1796
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "smsss" /sc MINUTE /mo 9 /tr "'C:\Users\Default\Cookies\smss.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:996
    • C:\Recovery\WindowsRE\services.exe
      "C:\Recovery\WindowsRE\services.exe"
      1⤵
        PID:3116
      • C:\Windows\LiveKernelReports\fontdrvhost.exe
        "C:\Windows\LiveKernelReports\fontdrvhost.exe"
        1⤵
          PID:4296
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "SIHClientS" /sc MINUTE /mo 5 /tr "'C:\Users\All Users\Desktop\SIHClient.exe'" /f
          1⤵
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:2364
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "SIHClient" /sc ONLOGON /tr "'C:\Users\All Users\Desktop\SIHClient.exe'" /rl HIGHEST /f
          1⤵
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:4992
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "SIHClientS" /sc MINUTE /mo 12 /tr "'C:\Users\All Users\Desktop\SIHClient.exe'" /rl HIGHEST /f
          1⤵
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:1496
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "WmiPrvSEW" /sc MINUTE /mo 12 /tr "'C:\Users\Default User\WmiPrvSE.exe'" /f
          1⤵
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:1824
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "WmiPrvSE" /sc ONLOGON /tr "'C:\Users\Default User\WmiPrvSE.exe'" /rl HIGHEST /f
          1⤵
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:1312
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "WmiPrvSEW" /sc MINUTE /mo 7 /tr "'C:\Users\Default User\WmiPrvSE.exe'" /rl HIGHEST /f
          1⤵
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:5144
        • C:\Users\Default User\WmiPrvSE.exe
          "C:\Users\Default User\WmiPrvSE.exe"
          1⤵
            PID:3008
          • C:\Users\All Users\Desktop\SIHClient.exe
            "C:\Users\All Users\Desktop\SIHClient.exe"
            1⤵
              PID:6432
            • C:\Users\Default\Cookies\smss.exe
              "C:\Users\Default\Cookies\smss.exe"
              1⤵
                PID:7756

              Network

                    MITRE ATT&CK Enterprise v16

                    Replay Monitor

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                    Downloads

                    RCX5982.tmp

                    • Path C:\Recovery\WindowsRE\RCX5982.tmp
                    • Size 1.7MB
                    • SHA256 bb08a6522ab0112de06f94543f62e19884182372e3eb116581f5a355cb7f10cc
                    • MD5 SHA1 SHA512 SSDEEP TLSH

                    __PSScriptPolicyTest_wx3zlx1g.qf4.ps1

                    • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_wx3zlx1g.qf4.ps1
                    • Size 60B
                    • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
                    • MD5 SHA1 SHA512 TLSH

                    RCX6B4B.tmp

                    • Path C:\Users\Public\Desktop\RCX6B4B.tmp
                    • Size 1.7MB
                    • SHA256 d434703018707c6e530c9124ee727d3f7741f85795ab1164c06c3043affea70e
                    • MD5 SHA1 SHA512 SSDEEP TLSH

                    SIHClient.exe

                    • Path C:\Users\Public\Desktop\SIHClient.exe
                    • Size 1.7MB
                    • SHA256 196e13467a79682b65dcd282bbe9e916a255321b5c81f931097f0a96b63a4e0c
                    • MD5 SHA1 SHA512 SSDEEP TLSH

                    memory/692-10774-0x0000000002FE0000-0x0000000003016000-memory.dmp

                    memory/2252-13794-0x0000000005E20000-0x0000000006174000-memory.dmp

                    memory/2252-13518-0x00000000054C0000-0x00000000054E2000-memory.dmp

                    memory/2252-13519-0x0000000005BC0000-0x0000000005C26000-memory.dmp

                    memory/3116-27923-0x0000000006CE0000-0x0000000006CF2000-memory.dmp

                    memory/4632-106-0x0000000005120000-0x0000000005394000-memory.dmp

                    memory/4632-30-0x0000000005120000-0x0000000005394000-memory.dmp

                    memory/4632-34-0x0000000005120000-0x0000000005394000-memory.dmp

                    memory/4632-46-0x0000000005120000-0x0000000005394000-memory.dmp

                    memory/4632-58-0x0000000005120000-0x0000000005394000-memory.dmp

                    memory/4632-56-0x0000000005120000-0x0000000005394000-memory.dmp

                    memory/4632-54-0x0000000005120000-0x0000000005394000-memory.dmp

                    memory/4632-52-0x0000000005120000-0x0000000005394000-memory.dmp

                    memory/4632-50-0x0000000005120000-0x0000000005394000-memory.dmp

                    memory/4632-48-0x0000000005120000-0x0000000005394000-memory.dmp

                    memory/4632-44-0x0000000005120000-0x0000000005394000-memory.dmp

                    memory/4632-42-0x0000000005120000-0x0000000005394000-memory.dmp

                    memory/4632-40-0x0000000005120000-0x0000000005394000-memory.dmp

                    memory/4632-38-0x0000000005120000-0x0000000005394000-memory.dmp

                    memory/4632-36-0x0000000005120000-0x0000000005394000-memory.dmp

                    memory/4632-32-0x0000000005120000-0x0000000005394000-memory.dmp

                    memory/4632-28-0x0000000005120000-0x0000000005394000-memory.dmp

                    memory/4632-26-0x0000000005120000-0x0000000005394000-memory.dmp

                    memory/4632-94-0x0000000005120000-0x0000000005394000-memory.dmp

                    memory/4632-24-0x0000000005120000-0x0000000005394000-memory.dmp

                    memory/4632-22-0x0000000005120000-0x0000000005394000-memory.dmp

                    memory/4632-20-0x0000000005120000-0x0000000005394000-memory.dmp

                    memory/4632-18-0x0000000005120000-0x0000000005394000-memory.dmp

                    memory/4632-14-0x0000000005120000-0x0000000005394000-memory.dmp

                    memory/4632-12-0x0000000005120000-0x0000000005394000-memory.dmp

                    memory/4632-10-0x0000000005120000-0x0000000005394000-memory.dmp

                    memory/4632-8-0x0000000005120000-0x0000000005394000-memory.dmp

                    memory/4632-5-0x0000000005120000-0x0000000005394000-memory.dmp

                    memory/4632-16-0x0000000005120000-0x0000000005394000-memory.dmp

                    memory/4632-64-0x0000000005120000-0x0000000005394000-memory.dmp

                    memory/4632-62-0x0000000005120000-0x0000000005394000-memory.dmp

                    memory/4632-108-0x0000000005120000-0x0000000005394000-memory.dmp

                    memory/4632-130-0x0000000005120000-0x0000000005394000-memory.dmp

                    memory/4632-128-0x0000000005120000-0x0000000005394000-memory.dmp

                    memory/4632-96-0x0000000005120000-0x0000000005394000-memory.dmp

                    memory/4632-124-0x0000000005120000-0x0000000005394000-memory.dmp

                    memory/4632-122-0x0000000005120000-0x0000000005394000-memory.dmp

                    memory/4632-120-0x0000000005120000-0x0000000005394000-memory.dmp

                    memory/4632-118-0x0000000005120000-0x0000000005394000-memory.dmp

                    memory/4632-116-0x0000000005120000-0x0000000005394000-memory.dmp

                    memory/4632-114-0x0000000005120000-0x0000000005394000-memory.dmp

                    memory/4632-112-0x0000000005120000-0x0000000005394000-memory.dmp

                    memory/4632-110-0x0000000005120000-0x0000000005394000-memory.dmp

                    memory/4632-4-0x0000000005120000-0x000000000539A000-memory.dmp

                    memory/4632-104-0x0000000005120000-0x0000000005394000-memory.dmp

                    memory/4632-102-0x0000000005120000-0x0000000005394000-memory.dmp

                    memory/4632-100-0x0000000005120000-0x0000000005394000-memory.dmp

                    memory/4632-98-0x0000000005120000-0x0000000005394000-memory.dmp

                    memory/4632-126-0x0000000005120000-0x0000000005394000-memory.dmp

                    memory/4632-6-0x0000000005120000-0x0000000005394000-memory.dmp

                    memory/4632-5235-0x00000000062F0000-0x0000000006300000-memory.dmp

                    memory/4632-88-0x0000000005120000-0x0000000005394000-memory.dmp

                    memory/4632-86-0x0000000005120000-0x0000000005394000-memory.dmp

                    memory/4632-84-0x0000000005120000-0x0000000005394000-memory.dmp

                    memory/4632-82-0x0000000005120000-0x0000000005394000-memory.dmp

                    memory/4632-80-0x0000000005120000-0x0000000005394000-memory.dmp

                    memory/4632-78-0x0000000005120000-0x0000000005394000-memory.dmp

                    memory/4632-72-0x0000000005120000-0x0000000005394000-memory.dmp

                    memory/4632-71-0x0000000005120000-0x0000000005394000-memory.dmp

                    memory/4632-68-0x0000000005120000-0x0000000005394000-memory.dmp

                    memory/4632-66-0x0000000005120000-0x0000000005394000-memory.dmp

                    memory/4632-75-0x0000000005120000-0x0000000005394000-memory.dmp

                    memory/4632-90-0x0000000005120000-0x0000000005394000-memory.dmp

                    memory/4632-76-0x0000000005120000-0x0000000005394000-memory.dmp

                    memory/4632-60-0x0000000005120000-0x0000000005394000-memory.dmp

                    memory/4632-1604-0x0000000005110000-0x0000000005120000-memory.dmp

                    memory/4632-1891-0x0000000005110000-0x0000000005120000-memory.dmp

                    memory/4632-2239-0x0000000005110000-0x0000000005120000-memory.dmp

                    memory/4632-5228-0x0000000005110000-0x0000000005120000-memory.dmp

                    memory/4632-5229-0x0000000004A90000-0x0000000004AAC000-memory.dmp

                    memory/4632-5230-0x0000000004AC0000-0x0000000004B10000-memory.dmp

                    memory/4632-5231-0x0000000004B20000-0x0000000004B28000-memory.dmp

                    memory/4632-5232-0x0000000006210000-0x0000000006220000-memory.dmp

                    memory/4632-5234-0x0000000006250000-0x0000000006258000-memory.dmp

                    memory/4632-92-0x0000000005120000-0x0000000005394000-memory.dmp

                    memory/4632-5233-0x00000000062D0000-0x00000000062E6000-memory.dmp

                    memory/4632-5236-0x0000000006710000-0x000000000671A000-memory.dmp

                    memory/4632-5237-0x0000000006740000-0x000000000674C000-memory.dmp

                    memory/4632-5238-0x0000000006750000-0x0000000006762000-memory.dmp

                    memory/4632-5239-0x0000000006860000-0x0000000006D8C000-memory.dmp

                    memory/4632-5240-0x00000000067E0000-0x00000000067EC000-memory.dmp

                    memory/4632-5241-0x00000000067F0000-0x00000000067FC000-memory.dmp

                    memory/4632-5242-0x0000000006820000-0x000000000682A000-memory.dmp

                    memory/4632-5244-0x0000000007110000-0x000000000711C000-memory.dmp

                    memory/4632-5245-0x0000000007120000-0x00000000071B2000-memory.dmp

                    memory/4632-5246-0x00000000071E0000-0x00000000071EC000-memory.dmp

                    memory/4632-5243-0x0000000006840000-0x0000000006848000-memory.dmp

                    memory/4632-5250-0x0000000005110000-0x0000000005120000-memory.dmp

                    memory/4632-5249-0x0000000007360000-0x00000000073C6000-memory.dmp

                    memory/4632-7450-0x0000000005110000-0x0000000005120000-memory.dmp

                    memory/4632-8023-0x0000000005110000-0x0000000005120000-memory.dmp

                    memory/4632-3-0x0000000005620000-0x0000000005BC4000-memory.dmp

                    memory/4632-2-0x0000000005110000-0x0000000005120000-memory.dmp

                    memory/4632-1-0x00000000053A0000-0x000000000561C000-memory.dmp

                    memory/4632-0-0x0000000005110000-0x0000000005120000-memory.dmp

                    memory/5372-10775-0x0000000004F40000-0x0000000005568000-memory.dmp

                    memory/5548-29542-0x0000000005AC0000-0x0000000005B0C000-memory.dmp

                    memory/5548-29525-0x0000000005450000-0x000000000546E000-memory.dmp