Analysis

  • max time kernel
    36s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260911-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    25/10/2026, 23:24

General

  • Target
    2026-10-24_4272e6690e4bb54c5c16242d2df65af7_drokbk_elex_rhadamanthys_smoke-loader_stealc_stop_tofsee.exe
  • Size 2.0MB
  • Sample261025-3d63msb16j
  • SHA256 0bf84bcf4133413fa00fd85beb6d7f4e392618025cbfceb075382185df4dff63
  • 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 3 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
  • Adds Run key to start application 2 TTPs 6 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 6 IoCs
  • Drops file in Windows directory 1 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 18 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 7 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\2026-10-24_4272e6690e4bb54c5c16242d2df65af7_drokbk_elex_rhadamanthys_smoke-loader_stealc_stop_tofsee.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-10-24_4272e6690e4bb54c5c16242d2df65af7_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:640
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\2026-10-24_4272e6690e4bb54c5c16242d2df65af7_drokbk_elex_rhadamanthys_smoke-loader_stealc_stop_tofsee.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      PID:800
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:\Users\Admin\OneDrive\csrss.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      PID:1352
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:\Program Files (x86)\Windows Sidebar\Gadgets\smss.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      PID:4636
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:\Program Files (x86)\Common Files\Idle.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      PID:4824
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:\Program Files\Windows Media Player\fr-FR\SearchApp.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      PID:3764
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:\Windows\bcastdvr\fontdrvhost.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      PID:4148
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:\Program Files\Reference Assemblies\services.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      PID:2572
    • C:\Program Files\Reference Assemblies\services.exe
      "C:\Program Files\Reference Assemblies\services.exe"
      2⤵
        PID:4676
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 14 /tr "'C:\Users\Admin\OneDrive\csrss.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:468
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "csrss" /sc ONLOGON /tr "'C:\Users\Admin\OneDrive\csrss.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:4228
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 6 /tr "'C:\Users\Admin\OneDrive\csrss.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:4908
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "smsss" /sc MINUTE /mo 11 /tr "'C:\Program Files (x86)\Windows Sidebar\Gadgets\smss.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2184
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "smss" /sc ONLOGON /tr "'C:\Program Files (x86)\Windows Sidebar\Gadgets\smss.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2612
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "smsss" /sc MINUTE /mo 14 /tr "'C:\Program Files (x86)\Windows Sidebar\Gadgets\smss.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:3940
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "IdleI" /sc MINUTE /mo 8 /tr "'C:\Program Files (x86)\Common Files\Idle.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2396
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "Idle" /sc ONLOGON /tr "'C:\Program Files (x86)\Common Files\Idle.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1144
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "IdleI" /sc MINUTE /mo 9 /tr "'C:\Program Files (x86)\Common Files\Idle.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:4356
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "SearchAppS" /sc MINUTE /mo 14 /tr "'C:\Program Files\Windows Media Player\fr-FR\SearchApp.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:3372
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "SearchApp" /sc ONLOGON /tr "'C:\Program Files\Windows Media Player\fr-FR\SearchApp.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2340
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "SearchAppS" /sc MINUTE /mo 12 /tr "'C:\Program Files\Windows Media Player\fr-FR\SearchApp.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:4204
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "fontdrvhostf" /sc MINUTE /mo 14 /tr "'C:\Windows\bcastdvr\fontdrvhost.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:744
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "fontdrvhost" /sc ONLOGON /tr "'C:\Windows\bcastdvr\fontdrvhost.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:4940
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "fontdrvhostf" /sc MINUTE /mo 8 /tr "'C:\Windows\bcastdvr\fontdrvhost.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:260
    • C:\Users\Admin\OneDrive\csrss.exe
      "C:\Users\Admin\OneDrive\csrss.exe"
      1⤵
        PID:880
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "servicess" /sc MINUTE /mo 5 /tr "'C:\Program Files\Reference Assemblies\services.exe'" /f
        1⤵
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:4800
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "services" /sc ONLOGON /tr "'C:\Program Files\Reference Assemblies\services.exe'" /rl HIGHEST /f
        1⤵
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:2248
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "servicess" /sc MINUTE /mo 13 /tr "'C:\Program Files\Reference Assemblies\services.exe'" /rl HIGHEST /f
        1⤵
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:456
      • C:\Windows\bcastdvr\fontdrvhost.exe
        "C:\Windows\bcastdvr\fontdrvhost.exe"
        1⤵
          PID:5868
        • C:\Program Files (x86)\Windows Sidebar\Gadgets\smss.exe
          "C:\Program Files (x86)\Windows Sidebar\Gadgets\smss.exe"
          1⤵
            PID:5244
          • C:\Program Files (x86)\Common Files\Idle.exe
            "C:\Program Files (x86)\Common Files\Idle.exe"
            1⤵
              PID:5352
            • C:\Program Files\Windows Media Player\fr-FR\SearchApp.exe
              "C:\Program Files\Windows Media Player\fr-FR\SearchApp.exe"
              1⤵
                PID:5428
              • C:\Program Files\Reference Assemblies\services.exe
                "C:\Program Files\Reference Assemblies\services.exe"
                1⤵
                  PID:5968

                Network

                      MITRE ATT&CK Enterprise v16

                      Replay Monitor

                      Loading Replay Monitor...

                      Downloads

                      SearchApp.exe

                      • Path C:\Program Files\Windows Media Player\fr-FR\SearchApp.exe
                      • Size 2.0MB
                      • SHA256 0bf84bcf4133413fa00fd85beb6d7f4e392618025cbfceb075382185df4dff63
                      • MD5 SHA1 SHA512 SSDEEP TLSH

                      __PSScriptPolicyTest_tvuka032.nmc.ps1

                      • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_tvuka032.nmc.ps1
                      • Size 60B
                      • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
                      • MD5 SHA1 SHA512 TLSH

                      memory/640-0-0x0000000002AA0000-0x0000000002AB0000-memory.dmp

                      memory/640-1-0x0000000005360000-0x0000000005618000-memory.dmp

                      memory/640-2-0x0000000002AA0000-0x0000000002AB0000-memory.dmp

                      memory/640-3-0x0000000005620000-0x0000000005BC4000-memory.dmp

                      memory/640-4-0x0000000005BD0000-0x0000000005E86000-memory.dmp

                      memory/640-10-0x0000000005BD0000-0x0000000005E81000-memory.dmp

                      memory/640-14-0x0000000005BD0000-0x0000000005E81000-memory.dmp

                      memory/640-34-0x0000000005BD0000-0x0000000005E81000-memory.dmp

                      memory/640-36-0x0000000005BD0000-0x0000000005E81000-memory.dmp

                      memory/640-32-0x0000000005BD0000-0x0000000005E81000-memory.dmp

                      memory/640-30-0x0000000005BD0000-0x0000000005E81000-memory.dmp

                      memory/640-28-0x0000000005BD0000-0x0000000005E81000-memory.dmp

                      memory/640-26-0x0000000005BD0000-0x0000000005E81000-memory.dmp

                      memory/640-24-0x0000000005BD0000-0x0000000005E81000-memory.dmp

                      memory/640-22-0x0000000005BD0000-0x0000000005E81000-memory.dmp

                      memory/640-20-0x0000000005BD0000-0x0000000005E81000-memory.dmp

                      memory/640-18-0x0000000005BD0000-0x0000000005E81000-memory.dmp

                      memory/640-16-0x0000000005BD0000-0x0000000005E81000-memory.dmp

                      memory/640-12-0x0000000005BD0000-0x0000000005E81000-memory.dmp

                      memory/640-8-0x0000000005BD0000-0x0000000005E81000-memory.dmp

                      memory/640-6-0x0000000005BD0000-0x0000000005E81000-memory.dmp

                      memory/640-5-0x0000000005BD0000-0x0000000005E81000-memory.dmp

                      memory/640-40-0x0000000005BD0000-0x0000000005E81000-memory.dmp

                      memory/640-74-0x0000000005BD0000-0x0000000005E81000-memory.dmp

                      memory/640-82-0x0000000005BD0000-0x0000000005E81000-memory.dmp

                      memory/640-96-0x0000000005BD0000-0x0000000005E81000-memory.dmp

                      memory/640-104-0x0000000005BD0000-0x0000000005E81000-memory.dmp

                      memory/640-128-0x0000000005BD0000-0x0000000005E81000-memory.dmp

                      memory/640-130-0x0000000005BD0000-0x0000000005E81000-memory.dmp

                      memory/640-126-0x0000000005BD0000-0x0000000005E81000-memory.dmp

                      memory/640-124-0x0000000005BD0000-0x0000000005E81000-memory.dmp

                      memory/640-122-0x0000000005BD0000-0x0000000005E81000-memory.dmp

                      memory/640-120-0x0000000005BD0000-0x0000000005E81000-memory.dmp

                      memory/640-118-0x0000000005BD0000-0x0000000005E81000-memory.dmp

                      memory/640-116-0x0000000005BD0000-0x0000000005E81000-memory.dmp

                      memory/640-112-0x0000000005BD0000-0x0000000005E81000-memory.dmp

                      memory/640-110-0x0000000005BD0000-0x0000000005E81000-memory.dmp

                      memory/640-108-0x0000000005BD0000-0x0000000005E81000-memory.dmp

                      memory/640-106-0x0000000005BD0000-0x0000000005E81000-memory.dmp

                      memory/640-102-0x0000000005BD0000-0x0000000005E81000-memory.dmp

                      memory/640-100-0x0000000005BD0000-0x0000000005E81000-memory.dmp

                      memory/640-98-0x0000000005BD0000-0x0000000005E81000-memory.dmp

                      memory/640-114-0x0000000005BD0000-0x0000000005E81000-memory.dmp

                      memory/640-94-0x0000000005BD0000-0x0000000005E81000-memory.dmp

                      memory/640-92-0x0000000005BD0000-0x0000000005E81000-memory.dmp

                      memory/640-90-0x0000000005BD0000-0x0000000005E81000-memory.dmp

                      memory/640-88-0x0000000005BD0000-0x0000000005E81000-memory.dmp

                      memory/640-86-0x0000000005BD0000-0x0000000005E81000-memory.dmp

                      memory/640-84-0x0000000005BD0000-0x0000000005E81000-memory.dmp

                      memory/640-80-0x0000000005BD0000-0x0000000005E81000-memory.dmp

                      memory/640-78-0x0000000005BD0000-0x0000000005E81000-memory.dmp

                      memory/640-76-0x0000000005BD0000-0x0000000005E81000-memory.dmp

                      memory/640-72-0x0000000005BD0000-0x0000000005E81000-memory.dmp

                      memory/640-70-0x0000000005BD0000-0x0000000005E81000-memory.dmp

                      memory/640-64-0x0000000005BD0000-0x0000000005E81000-memory.dmp

                      memory/640-60-0x0000000005BD0000-0x0000000005E81000-memory.dmp

                      memory/640-58-0x0000000005BD0000-0x0000000005E81000-memory.dmp

                      memory/640-56-0x0000000005BD0000-0x0000000005E81000-memory.dmp

                      memory/640-54-0x0000000005BD0000-0x0000000005E81000-memory.dmp

                      memory/640-52-0x0000000005BD0000-0x0000000005E81000-memory.dmp

                      memory/640-48-0x0000000005BD0000-0x0000000005E81000-memory.dmp

                      memory/640-46-0x0000000005BD0000-0x0000000005E81000-memory.dmp

                      memory/640-45-0x0000000005BD0000-0x0000000005E81000-memory.dmp

                      memory/640-68-0x0000000005BD0000-0x0000000005E81000-memory.dmp

                      memory/640-66-0x0000000005BD0000-0x0000000005E81000-memory.dmp

                      memory/640-38-0x0000000005BD0000-0x0000000005E81000-memory.dmp

                      memory/640-62-0x0000000005BD0000-0x0000000005E81000-memory.dmp

                      memory/640-50-0x0000000005BD0000-0x0000000005E81000-memory.dmp

                      memory/640-42-0x0000000005BD0000-0x0000000005E81000-memory.dmp

                      memory/640-1823-0x0000000002AA0000-0x0000000002AB0000-memory.dmp

                      memory/640-1821-0x0000000002AA0000-0x0000000002AB0000-memory.dmp

                      memory/640-2347-0x0000000002AA0000-0x0000000002AB0000-memory.dmp

                      memory/640-5228-0x0000000002AA0000-0x0000000002AB0000-memory.dmp

                      memory/640-5229-0x0000000004BC0000-0x0000000004BDC000-memory.dmp

                      memory/640-5230-0x0000000004BF0000-0x0000000004C40000-memory.dmp

                      memory/640-5232-0x00000000063C0000-0x00000000063D0000-memory.dmp

                      memory/640-5231-0x0000000004C50000-0x0000000004C58000-memory.dmp

                      memory/640-5233-0x0000000006400000-0x0000000006416000-memory.dmp

                      memory/640-5234-0x0000000006830000-0x0000000006838000-memory.dmp

                      memory/640-5235-0x0000000006980000-0x0000000006992000-memory.dmp

                      memory/640-5236-0x0000000006840000-0x0000000006848000-memory.dmp

                      memory/640-5237-0x00000000068A0000-0x00000000068B0000-memory.dmp

                      memory/640-5238-0x00000000068C0000-0x0000000006952000-memory.dmp

                      memory/640-5239-0x0000000006960000-0x000000000696A000-memory.dmp

                      memory/640-5240-0x0000000006AB0000-0x0000000006AB8000-memory.dmp

                      memory/640-5241-0x0000000006B00000-0x0000000006B0C000-memory.dmp

                      memory/640-5242-0x0000000006AC0000-0x0000000006AC8000-memory.dmp

                      memory/640-5244-0x0000000006AE0000-0x0000000006AF2000-memory.dmp

                      memory/640-5245-0x0000000007B50000-0x000000000807C000-memory.dmp

                      memory/640-5247-0x00000000080E0000-0x00000000080EC000-memory.dmp

                      memory/640-5246-0x00000000080C0000-0x00000000080CC000-memory.dmp

                      memory/640-5248-0x00000000080F0000-0x00000000080FC000-memory.dmp

                      memory/640-5249-0x0000000008110000-0x000000000811C000-memory.dmp

                      memory/640-5250-0x00000000083C0000-0x00000000083C8000-memory.dmp

                      memory/640-5252-0x00000000084D0000-0x00000000084DE000-memory.dmp

                      memory/640-5254-0x0000000008510000-0x0000000008518000-memory.dmp

                      memory/640-5256-0x0000000008530000-0x000000000853C000-memory.dmp

                      memory/640-5255-0x0000000008520000-0x000000000852A000-memory.dmp

                      memory/640-5259-0x00000000086E0000-0x0000000008746000-memory.dmp

                      memory/640-5253-0x0000000008500000-0x0000000008508000-memory.dmp

                      memory/640-5251-0x0000000008120000-0x000000000812A000-memory.dmp

                      memory/640-5260-0x0000000002AA0000-0x0000000002AB0000-memory.dmp

                      memory/640-6826-0x0000000002AA0000-0x0000000002AB0000-memory.dmp

                      memory/3764-8245-0x0000000005920000-0x0000000005C74000-memory.dmp

                      memory/4148-8098-0x0000000005840000-0x00000000058A6000-memory.dmp

                      memory/4148-8097-0x0000000005060000-0x0000000005082000-memory.dmp

                      memory/4148-29705-0x0000000005810000-0x000000000582E000-memory.dmp

                      memory/4148-30216-0x0000000006220000-0x000000000626C000-memory.dmp

                      memory/4636-6798-0x00000000029A0000-0x00000000029D6000-memory.dmp

                      memory/4636-6806-0x0000000005200000-0x0000000005828000-memory.dmp