Resubmissions

25-11-2024 10:00

241125-l129jaxlhr 10

25-11-2024 09:58

241125-lzk9ma1kg1 10

25-11-2024 09:56

241125-lyt55s1kew 10

25-11-2024 09:46

241125-lrsnqswral 10

Analysis

  • max time kernel
    1792s
  • max time network
    1800s
  • platform
    windows11-21h2_x64
  • resource
    win11-20241007-en
  • resource tags

    arch:x64arch:x86image:win11-20241007-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    25-11-2024 09:56

General

  • Target

    EXECUTOR METEOR .exe

  • Size

    1.1MB

  • MD5

    e5be94d6e847bb7656e80201cacf67fb

  • SHA1

    cc1ce69eea609b5fc9ff18f09407b934690bcff3

  • SHA256

    be5c49fa94be78520ee83ed6230a80aaf0ae9dd4bb2d6053aa8f843131f2f506

  • SHA512

    306c26f1e72a32c479b8d9112e2e0c5d22fd0e46b02ae5fa7ffff51191c9d79a52a2dbe7d200e0dc9cccf0919cba3693905c8b2dc6c6fc8f3d7eaf883e388100

  • SSDEEP

    24576:U2G/nvxW3Ww0tiUfTyqyg1hIZ9XWp7wJO:UbA30L+ixx

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 21 IoCs

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

  • DCRat payload 2 IoCs

    Detects payload of DCRat, commonly dropped by NSIS installers.

  • Executes dropped EXE 18 IoCs
  • Drops file in Program Files directory 11 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies registry class 1 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 21 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 18 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 18 IoCs
  • Suspicious use of WriteProcessMemory 10 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\EXECUTOR METEOR .exe
    "C:\Users\Admin\AppData\Local\Temp\EXECUTOR METEOR .exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:3672
    • C:\Windows\SysWOW64\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\comReviewrefPerf\Elw8H.vbe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4144
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\comReviewrefPerf\8WD994.bat" "
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:896
        • C:\comReviewrefPerf\surrogateRuntime.exe
          "C:\comReviewrefPerf\surrogateRuntime.exe"
          4⤵
          • Executes dropped EXE
          • Drops file in Program Files directory
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:2392
          • C:\Users\Admin\SendTo\fontdrvhost.exe
            "C:\Users\Admin\SendTo\fontdrvhost.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious behavior: GetForegroundWindowSpam
            • Suspicious use of AdjustPrivilegeToken
            PID:3052
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "OfficeClickToRunO" /sc MINUTE /mo 9 /tr "'C:\Program Files\Java\OfficeClickToRun.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4724
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "OfficeClickToRun" /sc ONLOGON /tr "'C:\Program Files\Java\OfficeClickToRun.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4876
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "OfficeClickToRunO" /sc MINUTE /mo 7 /tr "'C:\Program Files\Java\OfficeClickToRun.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:736
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "SearchHostS" /sc MINUTE /mo 12 /tr "'C:\Program Files\Microsoft Office\root\SearchHost.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:3304
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "SearchHost" /sc ONLOGON /tr "'C:\Program Files\Microsoft Office\root\SearchHost.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:3332
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "SearchHostS" /sc MINUTE /mo 8 /tr "'C:\Program Files\Microsoft Office\root\SearchHost.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1008
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "cmdc" /sc MINUTE /mo 9 /tr "'C:\Program Files\Windows Media Player\de-DE\cmd.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1332
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "cmd" /sc ONLOGON /tr "'C:\Program Files\Windows Media Player\de-DE\cmd.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4760
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "cmdc" /sc MINUTE /mo 14 /tr "'C:\Program Files\Windows Media Player\de-DE\cmd.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:3432
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "RuntimeBrokerR" /sc MINUTE /mo 13 /tr "'C:\Program Files (x86)\Microsoft\RuntimeBroker.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1684
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "RuntimeBroker" /sc ONLOGON /tr "'C:\Program Files (x86)\Microsoft\RuntimeBroker.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4188
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "RuntimeBrokerR" /sc MINUTE /mo 10 /tr "'C:\Program Files (x86)\Microsoft\RuntimeBroker.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4736
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "RuntimeBrokerR" /sc MINUTE /mo 5 /tr "'C:\comReviewrefPerf\RuntimeBroker.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:3752
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "RuntimeBroker" /sc ONLOGON /tr "'C:\comReviewrefPerf\RuntimeBroker.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 "RuntimeBrokerR" /sc MINUTE /mo 14 /tr "'C:\comReviewrefPerf\RuntimeBroker.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4148
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "fontdrvhostf" /sc MINUTE /mo 7 /tr "'C:\Users\Admin\SendTo\fontdrvhost.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4624
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "fontdrvhost" /sc ONLOGON /tr "'C:\Users\Admin\SendTo\fontdrvhost.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:3548
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "fontdrvhostf" /sc MINUTE /mo 8 /tr "'C:\Users\Admin\SendTo\fontdrvhost.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2848
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "conhostc" /sc MINUTE /mo 13 /tr "'C:\Program Files\VideoLAN\VLC\conhost.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1744
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "conhost" /sc ONLOGON /tr "'C:\Program Files\VideoLAN\VLC\conhost.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4864
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "conhostc" /sc MINUTE /mo 14 /tr "'C:\Program Files\VideoLAN\VLC\conhost.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4868
  • C:\Program Files\Java\OfficeClickToRun.exe
    "C:\Program Files\Java\OfficeClickToRun.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:2056
  • C:\Program Files\Microsoft Office\root\SearchHost.exe
    "C:\Program Files\Microsoft Office\root\SearchHost.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:4504
  • C:\Users\Admin\SendTo\fontdrvhost.exe
    C:\Users\Admin\SendTo\fontdrvhost.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:4816
  • C:\Program Files\VideoLAN\VLC\conhost.exe
    "C:\Program Files\VideoLAN\VLC\conhost.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:240
  • C:\Program Files\Java\OfficeClickToRun.exe
    "C:\Program Files\Java\OfficeClickToRun.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:4600
  • C:\Program Files\Windows Media Player\de-DE\cmd.exe
    "C:\Program Files\Windows Media Player\de-DE\cmd.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:4044
  • C:\comReviewrefPerf\RuntimeBroker.exe
    C:\comReviewrefPerf\RuntimeBroker.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:5104
  • C:\Program Files\Microsoft Office\root\SearchHost.exe
    "C:\Program Files\Microsoft Office\root\SearchHost.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:3688
  • C:\Users\Admin\SendTo\fontdrvhost.exe
    C:\Users\Admin\SendTo\fontdrvhost.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:4024
  • C:\Program Files\Java\OfficeClickToRun.exe
    "C:\Program Files\Java\OfficeClickToRun.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:2104
  • C:\Program Files\Microsoft Office\root\SearchHost.exe
    "C:\Program Files\Microsoft Office\root\SearchHost.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:3300
  • C:\Users\Admin\SendTo\fontdrvhost.exe
    C:\Users\Admin\SendTo\fontdrvhost.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:1192
  • C:\Program Files\VideoLAN\VLC\conhost.exe
    "C:\Program Files\VideoLAN\VLC\conhost.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:3192
  • C:\Program Files\Java\OfficeClickToRun.exe
    "C:\Program Files\Java\OfficeClickToRun.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:396
  • C:\Program Files\Windows Media Player\de-DE\cmd.exe
    "C:\Program Files\Windows Media Player\de-DE\cmd.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:4248
  • C:\comReviewrefPerf\RuntimeBroker.exe
    C:\comReviewrefPerf\RuntimeBroker.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:2512

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\OfficeClickToRun.exe.log

    Filesize

    1KB

    MD5

    b4e91d2e5f40d5e2586a86cf3bb4df24

    SHA1

    31920b3a41aa4400d4a0230a7622848789b38672

    SHA256

    5d8af3c7519874ed42a0d74ee559ae30d9cc6930aef213079347e2b47092c210

    SHA512

    968751b79a98961f145de48d425ea820fd1875bae79a725adf35fc8f4706c103ee0c7babd4838166d8a0dda9fbce3728c0265a04c4b37f335ec4eaa110a2b319

  • C:\comReviewrefPerf\8WD994.bat

    Filesize

    42B

    MD5

    ff1d6e65d0b458accf2d7e9cf078f012

    SHA1

    4a7a0831b061ce2c72dfe5dbb8d3e06ef48fb9c4

    SHA256

    2a3d5e93e6c1c94626f81d252cf9e831a94337a8fc871efa3560fbe966e35580

    SHA512

    1888c69ad30ab13f71aee80de86aaebb04c1ee7b08bc4f8f5e41dc325399cdc1c3bb956d9401ea6c51b425305d2835fffcae60fc4b8644fab255c03f37431d15

  • C:\comReviewrefPerf\Elw8H.vbe

    Filesize

    200B

    MD5

    a44fada9f313e0d6008aef960aeae861

    SHA1

    9217e79ff49d67baca484f5a5e9418cca3fb9b2e

    SHA256

    1e5c949fd2059fda331f7cd178a359f2ac4d4dd8cdae76543f21493b2ffb9d44

    SHA512

    800052e7c0cd62433bde0084b94ac3b44ddece5adc144c8e02a2e7dc8629b683ac3a94c6218bf61a595731d2dc1adf596c5bf101fc2d9c3723c3a099d2c853f7

  • C:\comReviewrefPerf\surrogateRuntime.exe

    Filesize

    828KB

    MD5

    422e6efd4d4c62a97c78be894b85a535

    SHA1

    6de90977b41153d67fdca7a9119edf382d7e5414

    SHA256

    fddbbd909aeb6e9466e3c926f7773f23f84d392604a2619caa3f5a4c9d63eb8c

    SHA512

    1c545785df5e6be6b1142adb94cc6779020d409fddd429743eb69646b35a7acafadb2445218445bbc7e5c02171f1b531d9a7c623d834c18dd49161708529d388

  • memory/2392-12-0x00007FFC55473000-0x00007FFC55475000-memory.dmp

    Filesize

    8KB

  • memory/2392-13-0x0000000000510000-0x00000000005E6000-memory.dmp

    Filesize

    856KB

  • memory/3052-40-0x00000000032D0000-0x0000000003316000-memory.dmp

    Filesize

    280KB

  • memory/3052-42-0x0000000003350000-0x000000000335D000-memory.dmp

    Filesize

    52KB

  • memory/3052-41-0x0000000003320000-0x0000000003329000-memory.dmp

    Filesize

    36KB

  • memory/3052-44-0x0000000003380000-0x000000000338B000-memory.dmp

    Filesize

    44KB

  • memory/3052-43-0x0000000003360000-0x000000000337E000-memory.dmp

    Filesize

    120KB