Analysis

  • max time kernel
    36s
  • max time network
    130s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    05/11/2026, 03:53

General

  • Target
    2026-11-04_fb6f296080e6bafcf2c6f0a754ab88b6_drokbk_elex_rhadamanthys_smoke-loader_stealc_stop_tofsee.exe
  • Size 1.7MB
  • Sample261105-ef52csfe43
  • SHA256 4e36d96f0f0fca66095543629377fdbd12ca1db9537f4a203bf6f035ee2dc381
  • 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 2 IoCs
  • Adds Run key to start application 2 TTPs 8 IoCs
  • Checks whether UAC is enabled 1 TTPs 2 IoCs
  • Executes a VBScript file via the Windows Script Host. 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 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 20 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\2026-11-04_fb6f296080e6bafcf2c6f0a754ab88b6_drokbk_elex_rhadamanthys_smoke-loader_stealc_stop_tofsee.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-11-04_fb6f296080e6bafcf2c6f0a754ab88b6_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:4820
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:/'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      PID:6216
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:/$Recycle.Bin/'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      PID:7212
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:/Documents and Settings/'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      PID:7260
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:/PerfLogs/'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      PID:6424
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:/Program Files/'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      PID:7628
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:/Program Files (x86)/'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      PID:7708
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:/ProgramData/'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      PID:7756
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:/Recovery/'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      PID:7752
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:/System Volume Information/'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      PID:7848
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:/Users/'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      PID:7904
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:/Windows/'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      PID:7244
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:/Windows.old/'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      PID:7316
    • C:\Windows.old\Registry.exe
      "C:\Windows.old\Registry.exe"
      2⤵
        PID:4548
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "RegistryR" /sc MINUTE /mo 7 /tr "'C:\Windows.old\Registry.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:4152
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "Registry" /sc ONLOGON /tr "'C:\Windows.old\Registry.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:4712
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "RegistryR" /sc MINUTE /mo 13 /tr "'C:\Windows.old\Registry.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:4924
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "ShellHostS" /sc MINUTE /mo 12 /tr "'C:\Windows\SystemTemp\Crashpad\reports\ShellHost.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:6000
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "ShellHost" /sc ONLOGON /tr "'C:\Windows\SystemTemp\Crashpad\reports\ShellHost.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2784
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "ShellHostS" /sc MINUTE /mo 12 /tr "'C:\Windows\SystemTemp\Crashpad\reports\ShellHost.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2080
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "dllhostd" /sc MINUTE /mo 11 /tr "'C:\Users\Public\Pictures\dllhost.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:3828
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "dllhost" /sc ONLOGON /tr "'C:\Users\Public\Pictures\dllhost.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2692
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "dllhostd" /sc MINUTE /mo 14 /tr "'C:\Users\Public\Pictures\dllhost.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:5384
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "wininitw" /sc MINUTE /mo 8 /tr "'C:\Users\Public\wininit.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:5672
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "wininit" /sc ONLOGON /tr "'C:\Users\Public\wininit.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:4560
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "wininitw" /sc MINUTE /mo 9 /tr "'C:\Users\Public\wininit.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:3696
    • C:\Windows\SystemTemp\Crashpad\reports\ShellHost.exe
      "C:\Windows\SystemTemp\Crashpad\reports\ShellHost.exe"
      1⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:5464
    • C:\Windows.old\Registry.exe
      "C:\Windows.old\Registry.exe"
      1⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:6096
    • C:\Users\Public\wininit.exe
      "C:\Users\Public\wininit.exe"
      1⤵
        PID:5336
        • C:\Windows\SysWOW64\WScript.exe
          "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\43ec77ae-d693-437c-a79e-3470bf5ce586.vbs"
          2⤵
          • Executes a VBScript file via the Windows Script Host.
          PID:7948
          • C:\Users\Public\wininit.exe
            C:\Users\Public\wininit.exe
            3⤵
              PID:7464
          • C:\Windows\SysWOW64\WScript.exe
            "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\3504fa01-2082-4334-bf37-77d711ac9dc0.vbs"
            2⤵
            • Executes a VBScript file via the Windows Script Host.
            PID:6676
        • C:\Users\Public\Pictures\dllhost.exe
          "C:\Users\Public\Pictures\dllhost.exe"
          1⤵
            PID:8124

          Network

                MITRE ATT&CK Enterprise v16

                Replay Monitor

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                Downloads

                3504fa01-2082-4334-bf37-77d711ac9dc0.vbs

                • Path C:\Users\Admin\AppData\Local\Temp\3504fa01-2082-4334-bf37-77d711ac9dc0.vbs
                • Size 479B
                • SHA256 8c0945bb0e3ea199ece3bfbe5a796bc4e60303cf99841f5aa41716e0bfbac21a
                • MD5 SHA1 SHA512 TLSH

                43ec77ae-d693-437c-a79e-3470bf5ce586.vbs

                • Path C:\Users\Admin\AppData\Local\Temp\43ec77ae-d693-437c-a79e-3470bf5ce586.vbs
                • Size 703B
                • SHA256 d679878d36a435dc5180a5d7450b16dfc964fa5d250eb82a4c5c1573375599c8
                • MD5 SHA1 SHA512 TLSH

                __PSScriptPolicyTest_cr45wene.ly0.ps1

                • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_cr45wene.ly0.ps1
                • Size 60B
                • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
                • MD5 SHA1 SHA512 TLSH

                dllhost.exe

                • Path C:\Users\Public\Pictures\dllhost.exe
                • Size 1.7MB
                • SHA256 1f1e83f4665094398f9bdbc6469aa0e471628fe6901920918523eca5d6e7b875
                • MD5 SHA1 SHA512 SSDEEP TLSH

                Registry.exe

                • Path C:\Windows.old\Registry.exe
                • Size 1.7MB
                • SHA256 7b0169d43f54b60e2cb0a9b15e94271cc13dbc97085428c5acacb64c22b73110
                • MD5 SHA1 SHA512 SSDEEP TLSH

                ShellHost.exe

                • Path C:\Windows\SystemTemp\Crashpad\reports\ShellHost.exe
                • Size 1.7MB
                • SHA256 4e36d96f0f0fca66095543629377fdbd12ca1db9537f4a203bf6f035ee2dc381
                • MD5 SHA1 SHA512 SSDEEP TLSH

                memory/4820-53-0x0000000005190000-0x0000000005404000-memory.dmp

                memory/4820-5246-0x0000000007350000-0x000000000735C000-memory.dmp

                memory/4820-11-0x0000000005190000-0x0000000005404000-memory.dmp

                memory/4820-15-0x0000000005190000-0x0000000005404000-memory.dmp

                memory/4820-22-0x0000000005190000-0x0000000005404000-memory.dmp

                memory/4820-20-0x0000000005190000-0x0000000005404000-memory.dmp

                memory/4820-37-0x0000000005190000-0x0000000005404000-memory.dmp

                memory/4820-52-0x0000000005190000-0x0000000005404000-memory.dmp

                memory/4820-67-0x0000000005190000-0x0000000005404000-memory.dmp

                memory/4820-107-0x0000000005190000-0x0000000005404000-memory.dmp

                memory/4820-132-0x0000000005190000-0x0000000005404000-memory.dmp

                memory/4820-129-0x0000000005190000-0x0000000005404000-memory.dmp

                memory/4820-127-0x0000000005190000-0x0000000005404000-memory.dmp

                memory/4820-125-0x0000000005190000-0x0000000005404000-memory.dmp

                memory/4820-123-0x0000000005190000-0x0000000005404000-memory.dmp

                memory/4820-121-0x0000000005190000-0x0000000005404000-memory.dmp

                memory/4820-119-0x0000000005190000-0x0000000005404000-memory.dmp

                memory/4820-117-0x0000000005190000-0x0000000005404000-memory.dmp

                memory/4820-115-0x0000000005190000-0x0000000005404000-memory.dmp

                memory/4820-113-0x0000000005190000-0x0000000005404000-memory.dmp

                memory/4820-111-0x0000000005190000-0x0000000005404000-memory.dmp

                memory/4820-109-0x0000000005190000-0x0000000005404000-memory.dmp

                memory/4820-105-0x0000000005190000-0x0000000005404000-memory.dmp

                memory/4820-103-0x0000000005190000-0x0000000005404000-memory.dmp

                memory/4820-101-0x0000000005190000-0x0000000005404000-memory.dmp

                memory/4820-99-0x0000000005190000-0x0000000005404000-memory.dmp

                memory/4820-97-0x0000000005190000-0x0000000005404000-memory.dmp

                memory/4820-95-0x0000000005190000-0x0000000005404000-memory.dmp

                memory/4820-93-0x0000000005190000-0x0000000005404000-memory.dmp

                memory/4820-91-0x0000000005190000-0x0000000005404000-memory.dmp

                memory/4820-89-0x0000000005190000-0x0000000005404000-memory.dmp

                memory/4820-87-0x0000000005190000-0x0000000005404000-memory.dmp

                memory/4820-85-0x0000000005190000-0x0000000005404000-memory.dmp

                memory/4820-83-0x0000000005190000-0x0000000005404000-memory.dmp

                memory/4820-81-0x0000000005190000-0x0000000005404000-memory.dmp

                memory/4820-79-0x0000000005190000-0x0000000005404000-memory.dmp

                memory/4820-77-0x0000000005190000-0x0000000005404000-memory.dmp

                memory/4820-75-0x0000000005190000-0x0000000005404000-memory.dmp

                memory/4820-73-0x0000000005190000-0x0000000005404000-memory.dmp

                memory/4820-71-0x0000000005190000-0x0000000005404000-memory.dmp

                memory/4820-69-0x0000000005190000-0x0000000005404000-memory.dmp

                memory/4820-65-0x0000000005190000-0x0000000005404000-memory.dmp

                memory/4820-63-0x0000000005190000-0x0000000005404000-memory.dmp

                memory/4820-61-0x0000000005190000-0x0000000005404000-memory.dmp

                memory/4820-59-0x0000000005190000-0x0000000005404000-memory.dmp

                memory/4820-57-0x0000000005190000-0x0000000005404000-memory.dmp

                memory/4820-55-0x0000000005190000-0x0000000005404000-memory.dmp

                memory/4820-3-0x00000000056A0000-0x0000000005C5A000-memory.dmp

                memory/4820-49-0x0000000005190000-0x0000000005404000-memory.dmp

                memory/4820-47-0x0000000005190000-0x0000000005404000-memory.dmp

                memory/4820-4-0x0000000005190000-0x000000000540A000-memory.dmp

                memory/4820-45-0x0000000005190000-0x0000000005404000-memory.dmp

                memory/4820-5245-0x0000000007290000-0x0000000007322000-memory.dmp

                memory/4820-39-0x0000000005190000-0x0000000005404000-memory.dmp

                memory/4820-35-0x0000000005190000-0x0000000005404000-memory.dmp

                memory/4820-33-0x0000000005190000-0x0000000005404000-memory.dmp

                memory/4820-31-0x0000000005190000-0x0000000005404000-memory.dmp

                memory/4820-29-0x0000000005190000-0x0000000005404000-memory.dmp

                memory/4820-27-0x0000000005190000-0x0000000005404000-memory.dmp

                memory/4820-24-0x0000000005190000-0x0000000005404000-memory.dmp

                memory/4820-18-0x0000000005190000-0x0000000005404000-memory.dmp

                memory/4820-16-0x0000000005190000-0x0000000005404000-memory.dmp

                memory/4820-25-0x0000000074E70000-0x000000007562C000-memory.dmp

                memory/4820-12-0x0000000005190000-0x0000000005404000-memory.dmp

                memory/4820-5-0x0000000005190000-0x0000000005404000-memory.dmp

                memory/4820-8-0x0000000005190000-0x0000000005404000-memory.dmp

                memory/4820-6-0x0000000005190000-0x0000000005404000-memory.dmp

                memory/4820-2330-0x0000000074E82000-0x0000000074E83000-memory.dmp

                memory/4820-2331-0x0000000074E70000-0x000000007562C000-memory.dmp

                memory/4820-5228-0x0000000074E70000-0x000000007562C000-memory.dmp

                memory/4820-5229-0x0000000004BC0000-0x0000000004BDC000-memory.dmp

                memory/4820-5230-0x0000000004BF0000-0x0000000004C40000-memory.dmp

                memory/4820-5232-0x00000000064C0000-0x00000000064D0000-memory.dmp

                memory/4820-5231-0x0000000004C50000-0x0000000004C58000-memory.dmp

                memory/4820-5233-0x0000000006520000-0x0000000006536000-memory.dmp

                memory/4820-5234-0x0000000006500000-0x0000000006508000-memory.dmp

                memory/4820-5235-0x0000000006540000-0x0000000006550000-memory.dmp

                memory/4820-5236-0x0000000006590000-0x000000000659A000-memory.dmp

                memory/4820-5237-0x00000000068C0000-0x00000000068CC000-memory.dmp

                memory/4820-5238-0x00000000068D0000-0x00000000068E2000-memory.dmp

                memory/4820-5239-0x0000000006900000-0x0000000006E2C000-memory.dmp

                memory/4820-5240-0x0000000006E90000-0x0000000006E9C000-memory.dmp

                memory/4820-5241-0x0000000006EA0000-0x0000000006EAC000-memory.dmp

                memory/4820-5244-0x0000000007280000-0x000000000728C000-memory.dmp

                memory/4820-5243-0x0000000007270000-0x0000000007278000-memory.dmp

                memory/4820-5242-0x0000000007260000-0x000000000726A000-memory.dmp

                memory/4820-43-0x0000000005190000-0x0000000005404000-memory.dmp

                memory/4820-41-0x0000000005190000-0x0000000005404000-memory.dmp

                memory/4820-5247-0x0000000074E70000-0x000000007562C000-memory.dmp

                memory/4820-5249-0x0000000007390000-0x00000000073F6000-memory.dmp

                memory/4820-8293-0x0000000074E70000-0x000000007562C000-memory.dmp

                memory/4820-9183-0x0000000074E70000-0x000000007562C000-memory.dmp

                memory/4820-0-0x0000000074E82000-0x0000000074E83000-memory.dmp

                memory/4820-1-0x0000000005420000-0x000000000569C000-memory.dmp

                memory/4820-2-0x0000000074E70000-0x000000007562C000-memory.dmp

                memory/4820-21223-0x0000000074E70000-0x000000007562C000-memory.dmp

                memory/6424-19404-0x0000000005D40000-0x000000000609B000-memory.dmp

                memory/6424-21611-0x0000000006230000-0x000000000624E000-memory.dmp

                memory/6424-21629-0x0000000006300000-0x000000000634C000-memory.dmp

                memory/6424-18730-0x0000000005BE0000-0x0000000005C46000-memory.dmp

                memory/6424-18440-0x0000000005A40000-0x0000000005A62000-memory.dmp

                memory/6424-14000-0x0000000005300000-0x000000000594A000-memory.dmp

                memory/7260-12892-0x0000000002390000-0x00000000023C6000-memory.dmp