Analysis

  • max time kernel
    109s
  • max time network
    111s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    09/07/2026, 16:58

General

  • Target
    2026-07-09_8dc2ee98b1907c92a7ef7655411b4825_drokbk_elex_rhadamanthys_smoke-loader_stealc_stop_tofsee.exe
  • Size 2.0MB
  • Sample260709-vgv6jsd12j
  • SHA256 901a961789832d7ad8c674e7c3f576ea4f3b57b64a52571fe94b3828af1e2fd7
  • 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 6 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 3 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 4 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 9 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 6 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 6 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of WriteProcessMemory 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\2026-07-09_8dc2ee98b1907c92a7ef7655411b4825_drokbk_elex_rhadamanthys_smoke-loader_stealc_stop_tofsee.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-07-09_8dc2ee98b1907c92a7ef7655411b4825_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
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    • System policy modification
    PID:1656
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\2026-07-09_8dc2ee98b1907c92a7ef7655411b4825_drokbk_elex_rhadamanthys_smoke-loader_stealc_stop_tofsee.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      PID:4172
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:\Program Files (x86)\Windows Photo Viewer\uk-UA\dllhost.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4500
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:\Program Files (x86)\Mozilla Maintenance Service\fontdrvhost.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      PID:2876
    • C:\Program Files (x86)\Mozilla Maintenance Service\fontdrvhost.exe
      "C:\Program Files (x86)\Mozilla Maintenance Service\fontdrvhost.exe"
      2⤵
        PID:1588
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "dllhostd" /sc MINUTE /mo 9 /tr "'C:\Program Files (x86)\Windows Photo Viewer\uk-UA\dllhost.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:5292
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "dllhost" /sc ONLOGON /tr "'C:\Program Files (x86)\Windows Photo Viewer\uk-UA\dllhost.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2384
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "dllhostd" /sc MINUTE /mo 12 /tr "'C:\Program Files (x86)\Windows Photo Viewer\uk-UA\dllhost.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:3980
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "fontdrvhostf" /sc MINUTE /mo 11 /tr "'C:\Program Files (x86)\Mozilla Maintenance Service\fontdrvhost.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:712
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "fontdrvhost" /sc ONLOGON /tr "'C:\Program Files (x86)\Mozilla Maintenance Service\fontdrvhost.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:3032
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "fontdrvhostf" /sc MINUTE /mo 10 /tr "'C:\Program Files (x86)\Mozilla Maintenance Service\fontdrvhost.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:5968
    • C:\Program Files (x86)\Windows Photo Viewer\uk-UA\dllhost.exe
      "C:\Program Files (x86)\Windows Photo Viewer\uk-UA\dllhost.exe"
      1⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      PID:1344
    • C:\Program Files (x86)\Mozilla Maintenance Service\fontdrvhost.exe
      "C:\Program Files (x86)\Mozilla Maintenance Service\fontdrvhost.exe"
      1⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      PID:1400

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          fontdrvhost.exe

          • Path C:\Program Files (x86)\Mozilla Maintenance Service\fontdrvhost.exe
          • Size 2.0MB
          • SHA256 901a961789832d7ad8c674e7c3f576ea4f3b57b64a52571fe94b3828af1e2fd7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          dllhost.exe

          • Path C:\Program Files (x86)\Windows Photo Viewer\uk-UA\dllhost.exe
          • Size 2.0MB
          • SHA256 df60c4c37e730c7beaa67b298a73ff7a89184c7547d341f1a5ddfd6d24240ba2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          StartupProfileData-NonInteractive

          • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
          • Size 21KB
          • SHA256 495d818aaa23bcc0921741eccfc0b9f1352392256bcc5afb4f5666ea14487de5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          StartupProfileData-NonInteractive

          • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
          • Size 21KB
          • SHA256 702c9baacaa7b16fd43a492dbe7d5c1b37805e1c510f100959d49c6d083f2ea9
          • MD5 SHA1 SHA512 SSDEEP TLSH

          __PSScriptPolicyTest_dlmfvc4w.m5v.psm1

          • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_dlmfvc4w.m5v.psm1
          • Size 60B
          • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
          • MD5 SHA1 SHA512 TLSH

          memory/1656-76-0x0000000005400000-0x00000000056B1000-memory.dmp

          memory/1656-5230-0x0000000006760000-0x000000000677C000-memory.dmp

          memory/1656-5-0x0000000074AD0000-0x000000007528C000-memory.dmp

          memory/1656-4-0x0000000005400000-0x00000000056B6000-memory.dmp

          memory/1656-6-0x0000000074AD0000-0x000000007528C000-memory.dmp

          memory/1656-23-0x0000000005400000-0x00000000056B1000-memory.dmp

          memory/1656-38-0x0000000005400000-0x00000000056B1000-memory.dmp

          memory/1656-7-0x0000000005400000-0x00000000056B1000-memory.dmp

          memory/1656-8-0x0000000005400000-0x00000000056B1000-memory.dmp

          memory/1656-10-0x0000000005400000-0x00000000056B1000-memory.dmp

          memory/1656-12-0x0000000005400000-0x00000000056B1000-memory.dmp

          memory/1656-14-0x0000000005400000-0x00000000056B1000-memory.dmp

          memory/1656-20-0x0000000005400000-0x00000000056B1000-memory.dmp

          memory/1656-26-0x0000000005400000-0x00000000056B1000-memory.dmp

          memory/1656-52-0x0000000005400000-0x00000000056B1000-memory.dmp

          memory/1656-51-0x0000000005400000-0x00000000056B1000-memory.dmp

          memory/1656-48-0x0000000005400000-0x00000000056B1000-memory.dmp

          memory/1656-46-0x0000000005400000-0x00000000056B1000-memory.dmp

          memory/1656-44-0x0000000005400000-0x00000000056B1000-memory.dmp

          memory/1656-58-0x0000000005400000-0x00000000056B1000-memory.dmp

          memory/1656-42-0x0000000005400000-0x00000000056B1000-memory.dmp

          memory/1656-40-0x0000000005400000-0x00000000056B1000-memory.dmp

          memory/1656-36-0x0000000005400000-0x00000000056B1000-memory.dmp

          memory/1656-34-0x0000000005400000-0x00000000056B1000-memory.dmp

          memory/1656-33-0x0000000005400000-0x00000000056B1000-memory.dmp

          memory/1656-30-0x0000000005400000-0x00000000056B1000-memory.dmp

          memory/1656-28-0x0000000005400000-0x00000000056B1000-memory.dmp

          memory/1656-24-0x0000000005400000-0x00000000056B1000-memory.dmp

          memory/1656-18-0x0000000005400000-0x00000000056B1000-memory.dmp

          memory/1656-16-0x0000000005400000-0x00000000056B1000-memory.dmp

          memory/1656-80-0x0000000005400000-0x00000000056B1000-memory.dmp

          memory/1656-92-0x0000000005400000-0x00000000056B1000-memory.dmp

          memory/1656-94-0x0000000005400000-0x00000000056B1000-memory.dmp

          memory/1656-56-0x0000000005400000-0x00000000056B1000-memory.dmp

          memory/1656-114-0x0000000005400000-0x00000000056B1000-memory.dmp

          memory/1656-116-0x0000000005400000-0x00000000056B1000-memory.dmp

          memory/1656-112-0x0000000005400000-0x00000000056B1000-memory.dmp

          memory/1656-110-0x0000000005400000-0x00000000056B1000-memory.dmp

          memory/1656-108-0x0000000005400000-0x00000000056B1000-memory.dmp

          memory/1656-106-0x0000000005400000-0x00000000056B1000-memory.dmp

          memory/1656-104-0x0000000005400000-0x00000000056B1000-memory.dmp

          memory/1656-102-0x0000000005400000-0x00000000056B1000-memory.dmp

          memory/1656-100-0x0000000005400000-0x00000000056B1000-memory.dmp

          memory/1656-70-0x0000000005400000-0x00000000056B1000-memory.dmp

          memory/1656-96-0x0000000005400000-0x00000000056B1000-memory.dmp

          memory/1656-132-0x0000000005400000-0x00000000056B1000-memory.dmp

          memory/1656-130-0x0000000005400000-0x00000000056B1000-memory.dmp

          memory/1656-128-0x0000000005400000-0x00000000056B1000-memory.dmp

          memory/1656-126-0x0000000005400000-0x00000000056B1000-memory.dmp

          memory/1656-124-0x0000000005400000-0x00000000056B1000-memory.dmp

          memory/1656-122-0x0000000005400000-0x00000000056B1000-memory.dmp

          memory/1656-120-0x0000000005400000-0x00000000056B1000-memory.dmp

          memory/1656-118-0x0000000005400000-0x00000000056B1000-memory.dmp

          memory/1656-90-0x0000000005400000-0x00000000056B1000-memory.dmp

          memory/1656-88-0x0000000005400000-0x00000000056B1000-memory.dmp

          memory/1656-86-0x0000000005400000-0x00000000056B1000-memory.dmp

          memory/1656-84-0x0000000005400000-0x00000000056B1000-memory.dmp

          memory/1656-82-0x0000000005400000-0x00000000056B1000-memory.dmp

          memory/1656-78-0x0000000005400000-0x00000000056B1000-memory.dmp

          memory/1656-2-0x0000000074AD0000-0x000000007528C000-memory.dmp

          memory/1656-3-0x0000000005990000-0x0000000005F4A000-memory.dmp

          memory/1656-74-0x0000000005400000-0x00000000056B1000-memory.dmp

          memory/1656-99-0x0000000005400000-0x00000000056B1000-memory.dmp

          memory/1656-68-0x0000000005400000-0x00000000056B1000-memory.dmp

          memory/1656-66-0x0000000005400000-0x00000000056B1000-memory.dmp

          memory/1656-64-0x0000000005400000-0x00000000056B1000-memory.dmp

          memory/1656-62-0x0000000005400000-0x00000000056B1000-memory.dmp

          memory/1656-60-0x0000000005400000-0x00000000056B1000-memory.dmp

          memory/1656-54-0x0000000005400000-0x00000000056B1000-memory.dmp

          memory/1656-1887-0x0000000074AD0000-0x000000007528C000-memory.dmp

          memory/1656-1886-0x0000000074AE2000-0x0000000074AE3000-memory.dmp

          memory/1656-5229-0x0000000074AD0000-0x000000007528C000-memory.dmp

          memory/1656-72-0x0000000005400000-0x00000000056B1000-memory.dmp

          memory/1656-5231-0x0000000006B20000-0x0000000006B70000-memory.dmp

          memory/1656-5232-0x00000000067B0000-0x00000000067B8000-memory.dmp

          memory/1656-5233-0x00000000067C0000-0x00000000067D0000-memory.dmp

          memory/1656-5235-0x0000000006B80000-0x0000000006B88000-memory.dmp

          memory/1656-5234-0x00000000067F0000-0x0000000006806000-memory.dmp

          memory/1656-5236-0x0000000006B90000-0x0000000006BA2000-memory.dmp

          memory/1656-5237-0x0000000006BB0000-0x0000000006BB8000-memory.dmp

          memory/1656-5238-0x0000000006D30000-0x0000000006D40000-memory.dmp

          memory/1656-5239-0x0000000006D90000-0x0000000006E22000-memory.dmp

          memory/1656-5240-0x0000000006D10000-0x0000000006D1A000-memory.dmp

          memory/1656-5243-0x0000000007F90000-0x0000000007F98000-memory.dmp

          memory/1656-5245-0x0000000007FA0000-0x0000000007FB2000-memory.dmp

          memory/1656-5242-0x0000000006D60000-0x0000000006D6C000-memory.dmp

          memory/1656-5241-0x0000000006D50000-0x0000000006D58000-memory.dmp

          memory/1656-5246-0x0000000007FF0000-0x000000000851C000-memory.dmp

          memory/1656-5247-0x0000000008570000-0x000000000857C000-memory.dmp

          memory/1656-5248-0x0000000008590000-0x000000000859C000-memory.dmp

          memory/1656-5249-0x00000000085A0000-0x00000000085AC000-memory.dmp

          memory/1656-5250-0x00000000085C0000-0x00000000085CC000-memory.dmp

          memory/1656-5251-0x00000000085D0000-0x00000000085D8000-memory.dmp

          memory/1656-5253-0x0000000008980000-0x000000000898E000-memory.dmp

          memory/1656-5252-0x0000000008970000-0x000000000897A000-memory.dmp

          memory/1656-5256-0x0000000074AD0000-0x000000007528C000-memory.dmp

          memory/1656-5257-0x00000000089F0000-0x00000000089FA000-memory.dmp

          memory/1656-5255-0x00000000089E0000-0x00000000089E8000-memory.dmp

          memory/1656-5258-0x0000000008A00000-0x0000000008A0C000-memory.dmp

          memory/1656-5254-0x00000000089D0000-0x00000000089D8000-memory.dmp

          memory/1656-5260-0x0000000008A20000-0x0000000008A86000-memory.dmp

          memory/1656-7094-0x0000000074AD0000-0x000000007528C000-memory.dmp

          memory/1656-7568-0x0000000074AD0000-0x000000007528C000-memory.dmp

          memory/1656-15753-0x0000000074AD0000-0x000000007528C000-memory.dmp

          memory/1656-0-0x0000000074AE2000-0x0000000074AE3000-memory.dmp

          memory/1656-1-0x00000000056D0000-0x0000000005988000-memory.dmp

          memory/2876-15745-0x00000000071E0000-0x00000000071EA000-memory.dmp

          memory/2876-15731-0x0000000006430000-0x0000000006466000-memory.dmp

          memory/2876-15732-0x000000006FD40000-0x000000006FD8C000-memory.dmp

          memory/2876-15735-0x00000000063F0000-0x0000000006410000-memory.dmp

          memory/2876-15307-0x0000000005A70000-0x0000000005A8E000-memory.dmp

          memory/2876-15418-0x0000000005EE0000-0x0000000005F2C000-memory.dmp

          memory/4172-15742-0x0000000007B50000-0x0000000007BF3000-memory.dmp

          memory/4172-9742-0x0000000005A80000-0x00000000060CA000-memory.dmp

          memory/4172-7794-0x0000000005300000-0x0000000005336000-memory.dmp

          memory/4172-15739-0x000000006FD40000-0x000000006FD8C000-memory.dmp

          memory/4500-12472-0x0000000005EC0000-0x0000000005F26000-memory.dmp

          memory/4500-15744-0x00000000077D0000-0x00000000077EA000-memory.dmp

          memory/4500-15736-0x000000006FD40000-0x000000006FD8C000-memory.dmp

          memory/4500-15746-0x0000000007A40000-0x0000000007AD6000-memory.dmp

          memory/4500-12143-0x0000000005C50000-0x0000000005C72000-memory.dmp

          memory/4500-14030-0x00000000060A0000-0x00000000063FB000-memory.dmp

          memory/4500-15743-0x0000000007E10000-0x000000000848C000-memory.dmp