Analysis

  • max time kernel
    94s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10-12-2024 02:30

General

  • Target

    366f3a7eb764ad2e8b8bd1ebcf389cbfad6034f4c6257f1cdd21a7a3cac768eb.exe

  • Size

    2.2MB

  • MD5

    3c439a0dac41ce86b80a6b1f2eb8908b

  • SHA1

    1ed48a383c839bf2f601c63e237b02bf532c5f4a

  • SHA256

    366f3a7eb764ad2e8b8bd1ebcf389cbfad6034f4c6257f1cdd21a7a3cac768eb

  • SHA512

    4c446ed60f907b496a5246371f6afb6b7c39d52e5eb89c20cb4aed402de0b8947441badbd7a8ffe17ca38f910538b71f7ee03aec8c8ee463a529395eb5e8af00

  • SSDEEP

    24576:BIKJvchtNfuWMqI/+Q0uwPTJ7CVhqbYziqp66B2eNizXR6yPp+oUP2mBXrp8AfiM:hJiB20rrsiqp6W22ITCdt85aBtuEg

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 24 IoCs

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

  • UAC bypass 3 TTPs 6 IoCs
  • DCRat payload 2 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
  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Checks whether UAC is enabled 1 TTPs 4 IoCs
  • Drops file in Program Files directory 8 IoCs
  • Drops file in Windows directory 5 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 24 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 34 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\366f3a7eb764ad2e8b8bd1ebcf389cbfad6034f4c6257f1cdd21a7a3cac768eb.exe
    "C:\Users\Admin\AppData\Local\Temp\366f3a7eb764ad2e8b8bd1ebcf389cbfad6034f4c6257f1cdd21a7a3cac768eb.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:2432
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\Rugo8QkH8w.bat"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2064
      • C:\Windows\system32\w32tm.exe
        w32tm /stripchart /computer:localhost /period:5 /dataonly /samples:2
        3⤵
          PID:348
        • C:\Program Files\VideoLAN\VLC\lua\playlist\services.exe
          "C:\Program Files\VideoLAN\VLC\lua\playlist\services.exe"
          3⤵
          • UAC bypass
          • Executes dropped EXE
          • Checks whether UAC is enabled
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • System policy modification
          PID:5100
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "366f3a7eb764ad2e8b8bd1ebcf389cbfad6034f4c6257f1cdd21a7a3cac768eb3" /sc MINUTE /mo 10 /tr "'C:\Program Files\Windows Multimedia Platform\366f3a7eb764ad2e8b8bd1ebcf389cbfad6034f4c6257f1cdd21a7a3cac768eb.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1840
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "366f3a7eb764ad2e8b8bd1ebcf389cbfad6034f4c6257f1cdd21a7a3cac768eb" /sc ONLOGON /tr "'C:\Program Files\Windows Multimedia Platform\366f3a7eb764ad2e8b8bd1ebcf389cbfad6034f4c6257f1cdd21a7a3cac768eb.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:5016
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "366f3a7eb764ad2e8b8bd1ebcf389cbfad6034f4c6257f1cdd21a7a3cac768eb3" /sc MINUTE /mo 5 /tr "'C:\Program Files\Windows Multimedia Platform\366f3a7eb764ad2e8b8bd1ebcf389cbfad6034f4c6257f1cdd21a7a3cac768eb.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:232
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "unsecappu" /sc MINUTE /mo 13 /tr "'C:\Windows\GameBarPresenceWriter\unsecapp.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:4796
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "unsecapp" /sc ONLOGON /tr "'C:\Windows\GameBarPresenceWriter\unsecapp.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:5092
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "unsecappu" /sc MINUTE /mo 10 /tr "'C:\Windows\GameBarPresenceWriter\unsecapp.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:4388
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "servicess" /sc MINUTE /mo 12 /tr "'C:\Program Files\VideoLAN\VLC\lua\playlist\services.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:4612
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "services" /sc ONLOGON /tr "'C:\Program Files\VideoLAN\VLC\lua\playlist\services.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:3468
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "servicess" /sc MINUTE /mo 13 /tr "'C:\Program Files\VideoLAN\VLC\lua\playlist\services.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:4480
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "explorere" /sc MINUTE /mo 6 /tr "'C:\Users\Public\Downloads\explorer.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:3452
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "explorer" /sc ONLOGON /tr "'C:\Users\Public\Downloads\explorer.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2364
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "explorere" /sc MINUTE /mo 13 /tr "'C:\Users\Public\Downloads\explorer.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:864
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "spoolsvs" /sc MINUTE /mo 10 /tr "'C:\Program Files (x86)\WindowsPowerShell\Modules\PowerShellGet\spoolsv.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:4992
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "spoolsv" /sc ONLOGON /tr "'C:\Program Files (x86)\WindowsPowerShell\Modules\PowerShellGet\spoolsv.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1908
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "spoolsvs" /sc MINUTE /mo 6 /tr "'C:\Program Files (x86)\WindowsPowerShell\Modules\PowerShellGet\spoolsv.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:3612
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "servicess" /sc MINUTE /mo 5 /tr "'C:\Users\All Users\services.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:456
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "services" /sc ONLOGON /tr "'C:\Users\All Users\services.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:4716
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "servicess" /sc MINUTE /mo 8 /tr "'C:\Users\All Users\services.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:4024
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "SearchAppS" /sc MINUTE /mo 10 /tr "'C:\Users\Default\My Documents\SearchApp.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:208
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "SearchApp" /sc ONLOGON /tr "'C:\Users\Default\My Documents\SearchApp.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:312
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "SearchAppS" /sc MINUTE /mo 7 /tr "'C:\Users\Default\My Documents\SearchApp.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:4948
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "TextInputHostT" /sc MINUTE /mo 10 /tr "'C:\Windows\BitLockerDiscoveryVolumeContents\TextInputHost.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2308
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "TextInputHost" /sc ONLOGON /tr "'C:\Windows\BitLockerDiscoveryVolumeContents\TextInputHost.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:3336
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "TextInputHostT" /sc MINUTE /mo 14 /tr "'C:\Windows\BitLockerDiscoveryVolumeContents\TextInputHost.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:3596

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Program Files (x86)\WindowsPowerShell\Modules\PowerShellGet\spoolsv.exe

      Filesize

      2.2MB

      MD5

      3c439a0dac41ce86b80a6b1f2eb8908b

      SHA1

      1ed48a383c839bf2f601c63e237b02bf532c5f4a

      SHA256

      366f3a7eb764ad2e8b8bd1ebcf389cbfad6034f4c6257f1cdd21a7a3cac768eb

      SHA512

      4c446ed60f907b496a5246371f6afb6b7c39d52e5eb89c20cb4aed402de0b8947441badbd7a8ffe17ca38f910538b71f7ee03aec8c8ee463a529395eb5e8af00

    • C:\Users\Admin\AppData\Local\Temp\Rugo8QkH8w.bat

      Filesize

      220B

      MD5

      fe5e99a316c142810bd98e2cbfb6f49b

      SHA1

      ea0f7603509285b605b700bfcfe05b9787e0f59f

      SHA256

      c61b7d7300c8cf50c95b10186c32f181f08a4d3e2f6f105bf62da8b0c0d6792f

      SHA512

      89141c0f57a1a1b647443b2e7d98e732cb8192bbb01d50376289f8b182eb3b842912c97c5ef7a5fdd513f9f4c2deec87c5bb785bd20e9e71716a8fe352bdc15d

    • memory/2432-0-0x00007FFEEE0C3000-0x00007FFEEE0C5000-memory.dmp

      Filesize

      8KB

    • memory/2432-1-0x0000000000940000-0x0000000000B7A000-memory.dmp

      Filesize

      2.2MB

    • memory/2432-2-0x00007FFEEE0C0000-0x00007FFEEEB81000-memory.dmp

      Filesize

      10.8MB

    • memory/2432-3-0x000000001B790000-0x000000001B7AC000-memory.dmp

      Filesize

      112KB

    • memory/2432-4-0x000000001BE20000-0x000000001BE70000-memory.dmp

      Filesize

      320KB

    • memory/2432-5-0x000000001B7B0000-0x000000001B7C6000-memory.dmp

      Filesize

      88KB

    • memory/2432-6-0x0000000002C60000-0x0000000002C6A000-memory.dmp

      Filesize

      40KB

    • memory/2432-7-0x000000001BE70000-0x000000001BEC6000-memory.dmp

      Filesize

      344KB

    • memory/2432-8-0x000000001B7D0000-0x000000001B7DC000-memory.dmp

      Filesize

      48KB

    • memory/2432-30-0x00007FFEEE0C0000-0x00007FFEEEB81000-memory.dmp

      Filesize

      10.8MB