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Analysis

  • max time kernel
    102s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250314-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22/03/2025, 06:15

General

  • Target

    b6baedc86ebdd4c9c3cc812f509f777b.exe

  • Size

    999KB

  • MD5

    b6baedc86ebdd4c9c3cc812f509f777b

  • SHA1

    1dfd321978faba568b114ef07a663e799899b0c4

  • SHA256

    7197f07c5612e994e7f66a40975e6ebc328847ab957ba0c84625e1c9f4543c69

  • SHA512

    6b292e829209cfc6e2f7c7cd2c4afc4ce77cd36042e9af9494ad934f1ff840f7050511c09a54fcf9b4e2fafd27492ae7ba295bf8783e4158ed369b4c20440aa1

  • SSDEEP

    12288:H9pLLk45WSSY1BX6f4bIS7rMNetPfC9Vs6IFGs0jxAqXj9xPSI0dzNgCoD7WX+Iu:H9pP5WS3lrMNyC9TJPCXBi

Malware Config

Signatures

  • DcRat 44 IoCs

    DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.

  • Dcrat family
  • Modifies WinLogon for persistence 2 TTPs 11 IoCs
  • Process spawned unexpected child process 44 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 1 IoCs
  • Adds Run key to start application 2 TTPs 11 IoCs
  • Drops file in Program Files directory 25 IoCs
  • Drops file in Windows directory 15 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Scheduled Task/Job: Scheduled Task 1 TTPs 44 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 14 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 2 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\b6baedc86ebdd4c9c3cc812f509f777b.exe
    "C:\Users\Admin\AppData\Local\Temp\b6baedc86ebdd4c9c3cc812f509f777b.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Checks computer location settings
    • Adds Run key to start application
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:360
    • C:\Program Files (x86)\Windows Mail\RuntimeBroker.exe
      "C:\Program Files (x86)\Windows Mail\RuntimeBroker.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:5068
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "StartMenuExperienceHost" /sc MINUTE /mo 8 /tr "'C:\ProgramData\Microsoft\StartMenuExperienceHost.exe'" /rl HIGHEST /f
    1⤵
    • DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2900
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "StartMenuExperienceHost" /sc ONLOGON /tr "'C:\ProgramData\Microsoft\StartMenuExperienceHost.exe'" /rl HIGHEST /f
    1⤵
    • DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:5988
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "StartMenuExperienceHost" /sc ONSTART /tr "'C:\ProgramData\Microsoft\StartMenuExperienceHost.exe'" /rl HIGHEST /f
    1⤵
    • DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1044
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "StartMenuExperienceHostS" /sc MINUTE /mo 11 /tr "'C:\ProgramData\Microsoft\StartMenuExperienceHost.exe'" /f
    1⤵
    • DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1888
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "TextInputHost" /sc MINUTE /mo 7 /tr "'C:\Program Files\Crashpad\attachments\TextInputHost.exe'" /rl HIGHEST /f
    1⤵
    • DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:864
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "TextInputHost" /sc ONLOGON /tr "'C:\Program Files\Crashpad\attachments\TextInputHost.exe'" /rl HIGHEST /f
    1⤵
    • DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4300
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "TextInputHost" /sc ONSTART /tr "'C:\Program Files\Crashpad\attachments\TextInputHost.exe'" /rl HIGHEST /f
    1⤵
    • DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1220
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "TextInputHostT" /sc MINUTE /mo 12 /tr "'C:\Program Files\Crashpad\attachments\TextInputHost.exe'" /f
    1⤵
    • DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4784
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "taskhostw" /sc MINUTE /mo 9 /tr "'C:\Recovery\WindowsRE\taskhostw.exe'" /rl HIGHEST /f
    1⤵
    • DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4416
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "taskhostw" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\taskhostw.exe'" /rl HIGHEST /f
    1⤵
    • DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4408
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "taskhostw" /sc ONSTART /tr "'C:\Recovery\WindowsRE\taskhostw.exe'" /rl HIGHEST /f
    1⤵
    • DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4544
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "taskhostwt" /sc MINUTE /mo 5 /tr "'C:\Recovery\WindowsRE\taskhostw.exe'" /f
    1⤵
    • DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4644
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "lsass" /sc MINUTE /mo 5 /tr "'C:\Windows\Help\en-US\lsass.exe'" /rl HIGHEST /f
    1⤵
    • DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4664
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "lsass" /sc ONLOGON /tr "'C:\Windows\Help\en-US\lsass.exe'" /rl HIGHEST /f
    1⤵
    • DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4684
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "lsass" /sc ONSTART /tr "'C:\Windows\Help\en-US\lsass.exe'" /rl HIGHEST /f
    1⤵
    • DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4688
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "lsassl" /sc MINUTE /mo 12 /tr "'C:\Windows\Help\en-US\lsass.exe'" /f
    1⤵
    • DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4708
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "sysmon" /sc MINUTE /mo 5 /tr "'C:\7e20f84d5244aba7145631d4073af8\sysmon.exe'" /rl HIGHEST /f
    1⤵
    • DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4852
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "sysmon" /sc ONLOGON /tr "'C:\7e20f84d5244aba7145631d4073af8\sysmon.exe'" /rl HIGHEST /f
    1⤵
    • DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4504
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "sysmon" /sc ONSTART /tr "'C:\7e20f84d5244aba7145631d4073af8\sysmon.exe'" /rl HIGHEST /f
    1⤵
    • DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:6048
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "sysmons" /sc MINUTE /mo 11 /tr "'C:\7e20f84d5244aba7145631d4073af8\sysmon.exe'" /f
    1⤵
    • DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4348
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "winlogon" /sc MINUTE /mo 13 /tr "'C:\Program Files (x86)\Windows NT\Accessories\en-US\winlogon.exe'" /rl HIGHEST /f
    1⤵
    • DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:3556
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "winlogon" /sc ONLOGON /tr "'C:\Program Files (x86)\Windows NT\Accessories\en-US\winlogon.exe'" /rl HIGHEST /f
    1⤵
    • DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:620
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "winlogon" /sc ONSTART /tr "'C:\Program Files (x86)\Windows NT\Accessories\en-US\winlogon.exe'" /rl HIGHEST /f
    1⤵
    • DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2352
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "winlogonw" /sc MINUTE /mo 13 /tr "'C:\Program Files (x86)\Windows NT\Accessories\en-US\winlogon.exe'" /f
    1⤵
    • DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4188
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "RuntimeBroker" /sc MINUTE /mo 14 /tr "'C:\Program Files (x86)\Windows Mail\RuntimeBroker.exe'" /rl HIGHEST /f
    1⤵
    • DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2156
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "RuntimeBroker" /sc ONLOGON /tr "'C:\Program Files (x86)\Windows Mail\RuntimeBroker.exe'" /rl HIGHEST /f
    1⤵
    • DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:5500
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "RuntimeBroker" /sc ONSTART /tr "'C:\Program Files (x86)\Windows Mail\RuntimeBroker.exe'" /rl HIGHEST /f
    1⤵
    • DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:3260
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "RuntimeBrokerR" /sc MINUTE /mo 6 /tr "'C:\Program Files (x86)\Windows Mail\RuntimeBroker.exe'" /f
    1⤵
    • DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:380
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "winlogon" /sc MINUTE /mo 5 /tr "'C:\Program Files\Crashpad\winlogon.exe'" /rl HIGHEST /f
    1⤵
    • DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4728
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "winlogon" /sc ONLOGON /tr "'C:\Program Files\Crashpad\winlogon.exe'" /rl HIGHEST /f
    1⤵
    • DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4756
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "winlogon" /sc ONSTART /tr "'C:\Program Files\Crashpad\winlogon.exe'" /rl HIGHEST /f
    1⤵
    • DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4840
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "winlogonw" /sc MINUTE /mo 7 /tr "'C:\Program Files\Crashpad\winlogon.exe'" /f
    1⤵
    • DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4860
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "spoolsv" /sc MINUTE /mo 5 /tr "'C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\v3.0\spoolsv.exe'" /rl HIGHEST /f
    1⤵
    • DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4764
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "spoolsv" /sc ONLOGON /tr "'C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\v3.0\spoolsv.exe'" /rl HIGHEST /f
    1⤵
    • DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4996
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "spoolsv" /sc ONSTART /tr "'C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\v3.0\spoolsv.exe'" /rl HIGHEST /f
    1⤵
    • DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4864
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "spoolsvs" /sc MINUTE /mo 8 /tr "'C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\v3.0\spoolsv.exe'" /f
    1⤵
    • DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4940
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "spoolsv" /sc MINUTE /mo 12 /tr "'C:\Windows\DigitalLocker\en-US\spoolsv.exe'" /rl HIGHEST /f
    1⤵
    • DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4956
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "spoolsv" /sc ONLOGON /tr "'C:\Windows\DigitalLocker\en-US\spoolsv.exe'" /rl HIGHEST /f
    1⤵
    • DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:5740
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "spoolsv" /sc ONSTART /tr "'C:\Windows\DigitalLocker\en-US\spoolsv.exe'" /rl HIGHEST /f
    1⤵
    • DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:5520
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "spoolsvs" /sc MINUTE /mo 5 /tr "'C:\Windows\DigitalLocker\en-US\spoolsv.exe'" /f
    1⤵
    • DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:5980
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "wininit" /sc MINUTE /mo 9 /tr "'C:\Windows\SystemApps\Microsoft.Windows.XGpuEjectDialog_cw5n1h2txyewy\microsoft.system.package.metadata\Autogen\wininit.exe'" /rl HIGHEST /f
    1⤵
    • DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:5720
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "wininit" /sc ONLOGON /tr "'C:\Windows\SystemApps\Microsoft.Windows.XGpuEjectDialog_cw5n1h2txyewy\microsoft.system.package.metadata\Autogen\wininit.exe'" /rl HIGHEST /f
    1⤵
    • DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2992
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "wininit" /sc ONSTART /tr "'C:\Windows\SystemApps\Microsoft.Windows.XGpuEjectDialog_cw5n1h2txyewy\microsoft.system.package.metadata\Autogen\wininit.exe'" /rl HIGHEST /f
    1⤵
    • DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2184
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "wininitw" /sc MINUTE /mo 8 /tr "'C:\Windows\SystemApps\Microsoft.Windows.XGpuEjectDialog_cw5n1h2txyewy\microsoft.system.package.metadata\Autogen\wininit.exe'" /f
    1⤵
    • DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2932

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\7e20f84d5244aba7145631d4073af8\sysmon.exe

    Filesize

    999KB

    MD5

    b6baedc86ebdd4c9c3cc812f509f777b

    SHA1

    1dfd321978faba568b114ef07a663e799899b0c4

    SHA256

    7197f07c5612e994e7f66a40975e6ebc328847ab957ba0c84625e1c9f4543c69

    SHA512

    6b292e829209cfc6e2f7c7cd2c4afc4ce77cd36042e9af9494ad934f1ff840f7050511c09a54fcf9b4e2fafd27492ae7ba295bf8783e4158ed369b4c20440aa1

  • C:\Program Files\Crashpad\RCX9839.tmp

    Filesize

    999KB

    MD5

    e8c70df554df1ca89c60e83ca685482d

    SHA1

    c6de6f8478745600130361e2eea016087ef299a6

    SHA256

    baa0625e4443a768a2633de2c9569202d8d3415c548ee32275bdc337be3ecf0f

    SHA512

    7b7e19770a5cfc8d8fa3c2763d9762884bc24b271f25df905adebeeaf7b353accbfbbabf5ed6d5f201eb92d35f266f6d59c8ae6b792c8721a5f6b0169ed1341c

  • memory/360-7-0x0000000002F60000-0x0000000002F70000-memory.dmp

    Filesize

    64KB

  • memory/360-9-0x0000000002F80000-0x0000000002F8E000-memory.dmp

    Filesize

    56KB

  • memory/360-0-0x00007FFAE86E3000-0x00007FFAE86E5000-memory.dmp

    Filesize

    8KB

  • memory/360-5-0x0000000002F40000-0x0000000002F50000-memory.dmp

    Filesize

    64KB

  • memory/360-4-0x0000000002FB0000-0x0000000003000000-memory.dmp

    Filesize

    320KB

  • memory/360-3-0x0000000001730000-0x000000000174C000-memory.dmp

    Filesize

    112KB

  • memory/360-8-0x0000000002F70000-0x0000000002F7C000-memory.dmp

    Filesize

    48KB

  • memory/360-6-0x0000000002F50000-0x0000000002F60000-memory.dmp

    Filesize

    64KB

  • memory/360-10-0x0000000002F90000-0x0000000002F9C000-memory.dmp

    Filesize

    48KB

  • memory/360-11-0x0000000003000000-0x000000000300C000-memory.dmp

    Filesize

    48KB

  • memory/360-2-0x00007FFAE86E0000-0x00007FFAE91A1000-memory.dmp

    Filesize

    10.8MB

  • memory/360-1-0x0000000000D30000-0x0000000000E30000-memory.dmp

    Filesize

    1024KB

  • memory/360-179-0x00007FFAE86E0000-0x00007FFAE91A1000-memory.dmp

    Filesize

    10.8MB

  • memory/5068-181-0x000000001CAC0000-0x000000001CBC2000-memory.dmp

    Filesize

    1.0MB