Analysis

  • max time kernel
    94s
  • max time network
    135s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18-01-2025 04:30

General

  • Target

    6e333e5b68668934186d53525c24d2ed857c35e36b4d21102d06e52e6890ac5f.exe

  • Size

    2.7MB

  • MD5

    9f7d0b9a32de0f6cefb6a3328f833034

  • SHA1

    b2f45dab2c76093c317cab36a47873e55e2c7c6e

  • SHA256

    6e333e5b68668934186d53525c24d2ed857c35e36b4d21102d06e52e6890ac5f

  • SHA512

    0ead99e58a9d244f308405a1cff664479de57f1ee38014a557642ef1ea3fe52f20f433c17da565ea23168a8b8c416fcbcb43e6d3df0c959341d36f592fb97f1d

  • SSDEEP

    49152:bBu+dK3GaaTUukCTXO2s2f1sKfmFRd0MdOa5k1kpm/Ufn6sC:duyjAi+j2aK+F54/U/6s

Malware Config

Signatures

  • DcRat

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

  • Dcrat family
  • Process spawned unexpected child process 30 IoCs

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

  • UAC bypass 3 TTPs 6 IoCs
  • DCRat payload 5 IoCs

    Detects payload of DCRat, commonly dropped by NSIS installers.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Checks whether UAC is enabled 1 TTPs 4 IoCs
  • Drops file in Program Files directory 20 IoCs
  • Drops file in Windows directory 11 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry class 1 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 30 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs
  • System policy modification 1 TTPs 6 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\6e333e5b68668934186d53525c24d2ed857c35e36b4d21102d06e52e6890ac5f.exe
    "C:\Users\Admin\AppData\Local\Temp\6e333e5b68668934186d53525c24d2ed857c35e36b4d21102d06e52e6890ac5f.exe"
    1⤵
    • UAC bypass
    • Checks computer location settings
    • Checks whether UAC is enabled
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    • System policy modification
    PID:4928
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\sGNVHQP6jY.bat"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:316
      • C:\Windows\system32\w32tm.exe
        w32tm /stripchart /computer:localhost /period:5 /dataonly /samples:2
        3⤵
          PID:2200
        • C:\Recovery\WindowsRE\System.exe
          "C:\Recovery\WindowsRE\System.exe"
          3⤵
          • UAC bypass
          • Executes dropped EXE
          • Checks whether UAC is enabled
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • System policy modification
          PID:4400
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "backgroundTaskHostb" /sc MINUTE /mo 9 /tr "'C:\Recovery\WindowsRE\backgroundTaskHost.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:3296
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "backgroundTaskHost" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\backgroundTaskHost.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:5012
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "backgroundTaskHostb" /sc MINUTE /mo 13 /tr "'C:\Recovery\WindowsRE\backgroundTaskHost.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:4968
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "6e333e5b68668934186d53525c24d2ed857c35e36b4d21102d06e52e6890ac5f6" /sc MINUTE /mo 5 /tr "'C:\Users\All Users\6e333e5b68668934186d53525c24d2ed857c35e36b4d21102d06e52e6890ac5f.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2036
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "6e333e5b68668934186d53525c24d2ed857c35e36b4d21102d06e52e6890ac5f" /sc ONLOGON /tr "'C:\Users\All Users\6e333e5b68668934186d53525c24d2ed857c35e36b4d21102d06e52e6890ac5f.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:220
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "6e333e5b68668934186d53525c24d2ed857c35e36b4d21102d06e52e6890ac5f6" /sc MINUTE /mo 9 /tr "'C:\Users\All Users\6e333e5b68668934186d53525c24d2ed857c35e36b4d21102d06e52e6890ac5f.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 "wininitw" /sc MINUTE /mo 6 /tr "'C:\Windows\Globalization\Time Zone\wininit.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:4364
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "wininit" /sc ONLOGON /tr "'C:\Windows\Globalization\Time Zone\wininit.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:3008
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "wininitw" /sc MINUTE /mo 10 /tr "'C:\Windows\Globalization\Time Zone\wininit.exe'" /rl HIGHEST /f
      1⤵
      • 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 9 /tr "'C:\Windows\ShellComponents\StartMenuExperienceHost.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:4524
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "StartMenuExperienceHost" /sc ONLOGON /tr "'C:\Windows\ShellComponents\StartMenuExperienceHost.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1420
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "StartMenuExperienceHostS" /sc MINUTE /mo 11 /tr "'C:\Windows\ShellComponents\StartMenuExperienceHost.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:696
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "SystemS" /sc MINUTE /mo 10 /tr "'C:\Program Files (x86)\Windows Multimedia Platform\System.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2976
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "System" /sc ONLOGON /tr "'C:\Program Files (x86)\Windows Multimedia Platform\System.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:4584
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "SystemS" /sc MINUTE /mo 6 /tr "'C:\Program Files (x86)\Windows Multimedia Platform\System.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 "lsassl" /sc MINUTE /mo 5 /tr "'C:\Program Files (x86)\Windows Multimedia Platform\lsass.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2040
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "lsass" /sc ONLOGON /tr "'C:\Program Files (x86)\Windows Multimedia Platform\lsass.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:384
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "lsassl" /sc MINUTE /mo 11 /tr "'C:\Program Files (x86)\Windows Multimedia Platform\lsass.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:4064
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "RuntimeBrokerR" /sc MINUTE /mo 6 /tr "'C:\Program Files (x86)\Windows Media Player\Media Renderer\RuntimeBroker.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:64
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "RuntimeBroker" /sc ONLOGON /tr "'C:\Program Files (x86)\Windows Media Player\Media Renderer\RuntimeBroker.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:3180
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "RuntimeBrokerR" /sc MINUTE /mo 10 /tr "'C:\Program Files (x86)\Windows Media Player\Media Renderer\RuntimeBroker.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:3764
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "SystemS" /sc MINUTE /mo 6 /tr "'C:\Recovery\WindowsRE\System.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:3888
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "System" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\System.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:4648
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "SystemS" /sc MINUTE /mo 6 /tr "'C:\Recovery\WindowsRE\System.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:4824
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "spoolsvs" /sc MINUTE /mo 5 /tr "'C:\Program Files\Windows Defender\es-ES\spoolsv.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:3568
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "spoolsv" /sc ONLOGON /tr "'C:\Program Files\Windows Defender\es-ES\spoolsv.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:3896
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "spoolsvs" /sc MINUTE /mo 14 /tr "'C:\Program Files\Windows Defender\es-ES\spoolsv.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2376
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "SystemS" /sc MINUTE /mo 12 /tr "'C:\Recovery\WindowsRE\System.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:632
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "System" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\System.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2604
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "SystemS" /sc MINUTE /mo 6 /tr "'C:\Recovery\WindowsRE\System.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1808

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Program Files (x86)\Windows Multimedia Platform\System.exe

      Filesize

      2.7MB

      MD5

      9f7d0b9a32de0f6cefb6a3328f833034

      SHA1

      b2f45dab2c76093c317cab36a47873e55e2c7c6e

      SHA256

      6e333e5b68668934186d53525c24d2ed857c35e36b4d21102d06e52e6890ac5f

      SHA512

      0ead99e58a9d244f308405a1cff664479de57f1ee38014a557642ef1ea3fe52f20f433c17da565ea23168a8b8c416fcbcb43e6d3df0c959341d36f592fb97f1d

    • C:\Program Files (x86)\Windows Multimedia Platform\lsass.exe

      Filesize

      2.7MB

      MD5

      ac390a90eca66ebe13e3e76c81263f08

      SHA1

      9fda2412e9b2ee2fffc154e657767e60ffbc4535

      SHA256

      75e1b46a763440013c346e685e29206f00541e26db1ef87c382bb8fd0b9c8662

      SHA512

      4c46acfb4129a762a181a4affc34dd4ae1ea0b0b7baead755a7d895e3a6ae60e0eda4c094e693c32c025d2a07535f37b3726ed610fe2f104bb0baebd16b91260

    • C:\Program Files\Windows Defender\es-ES\spoolsv.exe

      Filesize

      2.7MB

      MD5

      e23ade2e1cf37eb13764c6259495838a

      SHA1

      81fdbda669890e1c613297c4abf6c441b0a2c0a6

      SHA256

      bb44bf599d928a81b08436ddedbe651bd8cea945cd9f0c6b1885937f741cc422

      SHA512

      854e4389f0dca6269eaa4c41b758c0e4f026d7415ed900663ed57b006df26c120cc7fa28617fa9edd5fa57b45aa5043a8d5c87afb17f1f8f0dbbf3d09351450c

    • C:\Recovery\WindowsRE\backgroundTaskHost.exe

      Filesize

      2.7MB

      MD5

      109b5cb9fd42d796d646a79486f7d6a2

      SHA1

      1684597a8b66e56050ae23973ee1ffed55a3ea21

      SHA256

      f1abafb7ed10e847dae29ca5f4241922031406fdd598e5132448b4c72f234ffa

      SHA512

      bd58d39ebfdacad48bddce44e7d865a249115e19b1060d0b57ddaf151c70587d9cb299754d31938e143c4ef0ea822091c9b95eb24acd9ff4950d6045ad429d09

    • C:\Users\Admin\AppData\Local\Temp\sGNVHQP6jY.bat

      Filesize

      197B

      MD5

      56e26226a2920a089281aed4a4283685

      SHA1

      40dbd37b1391fdee9e9f1c7a4caafcad7429056b

      SHA256

      d620078be55c8e590ce6983d12e12811e07cbae3fe24a93217f31de9a20bf242

      SHA512

      e6594f8a059ead4068d336ec0ccde2b68d4998313abb35a2342be94f593cbcfd171add5beec07f58be3cbff1d411cad7bb4161369ddc43dddd28107774918599

    • memory/4400-164-0x000000001BD60000-0x000000001BD72000-memory.dmp

      Filesize

      72KB

    • memory/4928-8-0x000000001B410000-0x000000001B426000-memory.dmp

      Filesize

      88KB

    • memory/4928-21-0x000000001BB90000-0x000000001BB9A000-memory.dmp

      Filesize

      40KB

    • memory/4928-0-0x00007FF97C103000-0x00007FF97C105000-memory.dmp

      Filesize

      8KB

    • memory/4928-9-0x000000001BA40000-0x000000001BA48000-memory.dmp

      Filesize

      32KB

    • memory/4928-10-0x000000001BA50000-0x000000001BA58000-memory.dmp

      Filesize

      32KB

    • memory/4928-11-0x000000001BA60000-0x000000001BA6A000-memory.dmp

      Filesize

      40KB

    • memory/4928-12-0x000000001BAE0000-0x000000001BB36000-memory.dmp

      Filesize

      344KB

    • memory/4928-13-0x000000001BA70000-0x000000001BA78000-memory.dmp

      Filesize

      32KB

    • memory/4928-14-0x000000001BA80000-0x000000001BA92000-memory.dmp

      Filesize

      72KB

    • memory/4928-15-0x000000001C080000-0x000000001C5A8000-memory.dmp

      Filesize

      5.2MB

    • memory/4928-18-0x000000001BC70000-0x000000001BC7C000-memory.dmp

      Filesize

      48KB

    • memory/4928-20-0x000000001BB80000-0x000000001BB8C000-memory.dmp

      Filesize

      48KB

    • memory/4928-19-0x000000001BB70000-0x000000001BB7E000-memory.dmp

      Filesize

      56KB

    • memory/4928-7-0x000000001B400000-0x000000001B410000-memory.dmp

      Filesize

      64KB

    • memory/4928-17-0x000000001BB60000-0x000000001BB68000-memory.dmp

      Filesize

      32KB

    • memory/4928-16-0x000000001BB50000-0x000000001BB58000-memory.dmp

      Filesize

      32KB

    • memory/4928-22-0x000000001BBA0000-0x000000001BBAC000-memory.dmp

      Filesize

      48KB

    • memory/4928-6-0x000000001B3F0000-0x000000001B3F8000-memory.dmp

      Filesize

      32KB

    • memory/4928-5-0x000000001BA90000-0x000000001BAE0000-memory.dmp

      Filesize

      320KB

    • memory/4928-4-0x000000001B3D0000-0x000000001B3EC000-memory.dmp

      Filesize

      112KB

    • memory/4928-138-0x00007FF97C103000-0x00007FF97C105000-memory.dmp

      Filesize

      8KB

    • memory/4928-3-0x000000001B3C0000-0x000000001B3CE000-memory.dmp

      Filesize

      56KB

    • memory/4928-152-0x00007FF97C100000-0x00007FF97CBC1000-memory.dmp

      Filesize

      10.8MB

    • memory/4928-159-0x00007FF97C100000-0x00007FF97CBC1000-memory.dmp

      Filesize

      10.8MB

    • memory/4928-2-0x00007FF97C100000-0x00007FF97CBC1000-memory.dmp

      Filesize

      10.8MB

    • memory/4928-1-0x0000000000500000-0x00000000007B4000-memory.dmp

      Filesize

      2.7MB