Analysis

  • max time kernel
    149s
  • max time network
    144s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    10/09/2026, 09:49

General

  • Target
    24534827afe179a6e623971fad06df4448a87889f74fb6ca7d920b190b529b37.exe
  • Size 885KB
  • Sample260910-ltm62aap6s
  • SHA256 24534827afe179a6e623971fad06df4448a87889f74fb6ca7d920b190b529b37
  • 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.

  • DCRat payload 4 IoCs

    Detects payload of DCRat, commonly dropped by NSIS installers.

  • Process spawned unexpected child process 39 IoCs

    This typically indicates the parent process was compromised via an exploit or macro.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 14 IoCs
  • SmartAssembly .NET packer 2 IoCs

    Detects SmartAssembly .NET packer.

  • Drops file in Program Files directory 13 IoCs
  • Drops file in Windows directory 20 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Scheduled Task/Job: Scheduled Task 1 TTPs 39 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 15 IoCs
  • Suspicious use of WriteProcessMemory 1 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\24534827afe179a6e623971fad06df4448a87889f74fb6ca7d920b190b529b37.exe
    "C:\Users\Admin\AppData\Local\Temp\24534827afe179a6e623971fad06df4448a87889f74fb6ca7d920b190b529b37.exe"
    1⤵
    • Checks computer location settings
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1284
    • C:\Users\Public\Desktop\services.exe
      "C:\Users\Public\Desktop\services.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:3480
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "spoolsvs" /sc MINUTE /mo 13 /tr "'C:\Program Files\7-Zip\Lang\spoolsv.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1736
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "spoolsv" /sc ONLOGON /tr "'C:\Program Files\7-Zip\Lang\spoolsv.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4196
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "spoolsvs" /sc MINUTE /mo 5 /tr "'C:\Program Files\7-Zip\Lang\spoolsv.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:3228
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "taskhostwt" /sc MINUTE /mo 9 /tr "'C:\Recovery\WindowsRE\taskhostw.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:3776
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "taskhostw" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\taskhostw.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2780
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "taskhostwt" /sc MINUTE /mo 11 /tr "'C:\Recovery\WindowsRE\taskhostw.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2760
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "StartMenuExperienceHostS" /sc MINUTE /mo 6 /tr "'C:\Program Files\VideoLAN\VLC\locale\StartMenuExperienceHost.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:5036
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "StartMenuExperienceHost" /sc ONLOGON /tr "'C:\Program Files\VideoLAN\VLC\locale\StartMenuExperienceHost.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1548
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "StartMenuExperienceHostS" /sc MINUTE /mo 9 /tr "'C:\Program Files\VideoLAN\VLC\locale\StartMenuExperienceHost.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:3460
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "WUDFHostW" /sc MINUTE /mo 9 /tr "'C:\Windows\bcastdvr\WUDFHost.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:3352
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "WUDFHost" /sc ONLOGON /tr "'C:\Windows\bcastdvr\WUDFHost.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:3644
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "WUDFHostW" /sc MINUTE /mo 12 /tr "'C:\Windows\bcastdvr\WUDFHost.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:3328
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "WUDFHostW" /sc MINUTE /mo 10 /tr "'C:\Users\Default User\WUDFHost.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:3484
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "WUDFHost" /sc ONLOGON /tr "'C:\Users\Default User\WUDFHost.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4732
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "WUDFHostW" /sc MINUTE /mo 9 /tr "'C:\Users\Default User\WUDFHost.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:3156
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "servicess" /sc MINUTE /mo 12 /tr "'C:\Users\Public\Desktop\services.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2100
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "services" /sc ONLOGON /tr "'C:\Users\Public\Desktop\services.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:3736
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "servicess" /sc MINUTE /mo 12 /tr "'C:\Users\Public\Desktop\services.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1856
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "smsss" /sc MINUTE /mo 11 /tr "'C:\Windows\Panther\smss.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:3924
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "smss" /sc ONLOGON /tr "'C:\Windows\Panther\smss.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:548
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "smsss" /sc MINUTE /mo 10 /tr "'C:\Windows\Panther\smss.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:760
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "RuntimeBrokerR" /sc MINUTE /mo 7 /tr "'C:\Program Files\Windows Sidebar\RuntimeBroker.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2948
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "RuntimeBroker" /sc ONLOGON /tr "'C:\Program Files\Windows Sidebar\RuntimeBroker.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4136
  • C:\Program Files\7-Zip\Lang\spoolsv.exe
    "C:\Program Files\7-Zip\Lang\spoolsv.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:4148
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "RuntimeBrokerR" /sc MINUTE /mo 5 /tr "'C:\Program Files\Windows Sidebar\RuntimeBroker.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4112
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "dllhostd" /sc MINUTE /mo 14 /tr "'C:\Windows\en-US\dllhost.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2140
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "dllhost" /sc ONLOGON /tr "'C:\Windows\en-US\dllhost.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1504
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "dllhostd" /sc MINUTE /mo 14 /tr "'C:\Windows\en-US\dllhost.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2024
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "RegistryR" /sc MINUTE /mo 14 /tr "'C:\Windows\ModemLogs\Registry.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4928
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "Registry" /sc ONLOGON /tr "'C:\Windows\ModemLogs\Registry.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:700
  • C:\Users\Public\Desktop\services.exe
    "C:\Users\Public\Desktop\services.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:2792
  • C:\Users\Default User\WUDFHost.exe
    "C:\Users\Default User\WUDFHost.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:204
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "RegistryR" /sc MINUTE /mo 5 /tr "'C:\Windows\ModemLogs\Registry.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4336
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "servicess" /sc MINUTE /mo 10 /tr "'C:\Users\Default\Application Data\services.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1772
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "services" /sc ONLOGON /tr "'C:\Users\Default\Application Data\services.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:988
  • C:\Windows\bcastdvr\WUDFHost.exe
    "C:\Windows\bcastdvr\WUDFHost.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:1320
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "servicess" /sc MINUTE /mo 11 /tr "'C:\Users\Default\Application Data\services.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4900
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "WUDFHostW" /sc MINUTE /mo 8 /tr "'C:\Windows\Prefetch\ReadyBoot\WUDFHost.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4600
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "WUDFHost" /sc ONLOGON /tr "'C:\Windows\Prefetch\ReadyBoot\WUDFHost.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4556
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "WUDFHostW" /sc MINUTE /mo 5 /tr "'C:\Windows\Prefetch\ReadyBoot\WUDFHost.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:412
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "wininitw" /sc MINUTE /mo 11 /tr "'C:\Recovery\WindowsRE\wininit.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:3728
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "wininit" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\wininit.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:3824
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "wininitw" /sc MINUTE /mo 7 /tr "'C:\Recovery\WindowsRE\wininit.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2564
  • C:\Recovery\WindowsRE\taskhostw.exe
    "C:\Recovery\WindowsRE\taskhostw.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:3804
  • C:\Program Files\VideoLAN\VLC\locale\StartMenuExperienceHost.exe
    "C:\Program Files\VideoLAN\VLC\locale\StartMenuExperienceHost.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:2648
  • C:\Program Files\Windows Sidebar\RuntimeBroker.exe
    "C:\Program Files\Windows Sidebar\RuntimeBroker.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:4384
  • C:\Windows\en-US\dllhost.exe
    "C:\Windows\en-US\dllhost.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:3920
  • C:\Windows\ModemLogs\Registry.exe
    "C:\Windows\ModemLogs\Registry.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:2292
  • C:\Windows\Panther\smss.exe
    "C:\Windows\Panther\smss.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:4236
  • C:\Users\Default\Application Data\services.exe
    "C:\Users\Default\Application Data\services.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:2624
  • C:\Recovery\WindowsRE\wininit.exe
    "C:\Recovery\WindowsRE\wininit.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:4688
  • C:\Windows\Prefetch\ReadyBoot\WUDFHost.exe
    "C:\Windows\Prefetch\ReadyBoot\WUDFHost.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:964

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        WUDFHost.exe.log

        • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\WUDFHost.exe.log
        • Size 1KB
        • SHA256 ee954c5d8156fd8890e582c716e5758ed9b33721258f10e758bdc31ccbcb1924
        • MD5 SHA1 SHA512 TLSH

        WUDFHost.exe

        • Path C:\Users\Default\WUDFHost.exe
        • Size 885KB
        • SHA256 24534827afe179a6e623971fad06df4448a87889f74fb6ca7d920b190b529b37
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/1284-0-0x0000000000020000-0x0000000000104000-memory.dmp

        memory/1284-1-0x000000001AE20000-0x000000001AE30000-memory.dmp

        memory/1284-2-0x000000001AE00000-0x000000001AE1C000-memory.dmp

        memory/1284-4-0x000000001B230000-0x000000001B240000-memory.dmp

        memory/1284-3-0x000000001B280000-0x000000001B2D0000-memory.dmp

        memory/1284-5-0x000000001B240000-0x000000001B256000-memory.dmp

        memory/1284-9-0x000000001B2E0000-0x000000001B2EC000-memory.dmp

        memory/1284-8-0x000000001B2D0000-0x000000001B2D8000-memory.dmp

        memory/1284-7-0x000000001B270000-0x000000001B27E000-memory.dmp

        memory/1284-6-0x000000001B260000-0x000000001B26A000-memory.dmp