Analysis

  • user interaction
    yes
  • max time kernel
    40s
  • max time network
    38s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260513-en
  • resource tags

    arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    04/08/2026, 17:10

General

  • Target
    cortex-studio.exe
  • Size 16.1MB
  • Sample260804-vpyawaea87
  • SHA256 d20b44adbc9d4a11013e59f1aa16b8992d9d3917ba888ea96e25b1cc3135762b
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Network Share Discovery 1 TTPs

    Attempt to gather information on host network.

  • Enumerates physical storage devices 1 TTPs

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

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies data under HKEY_USERS 2 IoCs
  • Modifies registry class 34 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 1 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\cortex-studio.exe
    "C:\Users\Admin\AppData\Local\Temp\cortex-studio.exe"
    1⤵
    • Checks whether UAC is enabled
    • Modifies registry class
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4784
    • C:\Program Files (x86)\Microsoft\EdgeWebView\Application\132.0.2957.140\msedgewebview2.exe
      "C:\Program Files (x86)\Microsoft\EdgeWebView\Application\132.0.2957.140\msedgewebview2.exe" --embedded-browser-webview=1 --webview-exe-name=cortex-studio.exe --webview-exe-version=4.0.0 --user-data-dir="C:\Users\Admin\AppData\Local\com.cortexstudio.app\EBWebView" --noerrdialogs --embedded-browser-webview-dpi-awareness=2 --autoplay-policy=no-user-gesture-required --disable-features=msWebOOUI,msPdfOOUI,msSmartScreenProtection --lang=en-US --mojo-named-platform-channel-pipe=4784.2600.14606000681308940666
      2⤵
      • Enumerates system info in registry
      • Modifies data under HKEY_USERS
      • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
      • Suspicious use of WriteProcessMemory
      PID:2908
      • C:\Program Files (x86)\Microsoft\EdgeWebView\Application\132.0.2957.140\msedgewebview2.exe
        "C:\Program Files (x86)\Microsoft\EdgeWebView\Application\132.0.2957.140\msedgewebview2.exe" --type=crashpad-handler --user-data-dir=C:\Users\Admin\AppData\Local\com.cortexstudio.app\EBWebView /prefetch:4 --monitor-self-annotation=ptype=crashpad-handler --database=C:\Users\Admin\AppData\Local\com.cortexstudio.app\EBWebView\Crashpad --annotation=IsOfficialBuild=1 --annotation=channel= --annotation=chromium-version=132.0.6834.160 "--annotation=exe=C:\Program Files (x86)\Microsoft\EdgeWebView\Application\132.0.2957.140\msedgewebview2.exe" --annotation=plat=Win64 "--annotation=prod=Edge WebView2" --annotation=ver=132.0.2957.140 --initial-client-data=0x160,0x164,0x168,0x13c,0x170,0x7ffccef0b078,0x7ffccef0b084,0x7ffccef0b090
        3⤵
          PID:4344
        • C:\Program Files (x86)\Microsoft\EdgeWebView\Application\132.0.2957.140\msedgewebview2.exe
          "C:\Program Files (x86)\Microsoft\EdgeWebView\Application\132.0.2957.140\msedgewebview2.exe" --type=gpu-process --string-annotations --noerrdialogs --user-data-dir="C:\Users\Admin\AppData\Local\com.cortexstudio.app\EBWebView" --webview-exe-name=cortex-studio.exe --webview-exe-version=4.0.0 --embedded-browser-webview=1 --embedded-browser-webview-dpi-awareness=2 --gpu-preferences=UAAAAAAAAADgAAAEAAAAAAAAAAAAAAAAAABgAAEAAAAAAAAAAAAAAAAAAAACAAAAAAAAAAAAAAAAAAAAAAAAABAAAAAAAAAAEAAAAAAAAAAIAAAAAAAAAAgAAAAAAAAA --always-read-main-dll --field-trial-handle=1676,i,10086625601037365460,10976347034918175825,262144 --disable-features=msPdfOOUI,msSmartScreenProtection,msWebOOUI --variations-seed-version --mojo-platform-channel-handle=1688 /prefetch:2
          3⤵
            PID:672
          • C:\Program Files (x86)\Microsoft\EdgeWebView\Application\132.0.2957.140\msedgewebview2.exe
            "C:\Program Files (x86)\Microsoft\EdgeWebView\Application\132.0.2957.140\msedgewebview2.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --string-annotations --noerrdialogs --user-data-dir="C:\Users\Admin\AppData\Local\com.cortexstudio.app\EBWebView" --webview-exe-name=cortex-studio.exe --webview-exe-version=4.0.0 --embedded-browser-webview=1 --embedded-browser-webview-dpi-awareness=2 --always-read-main-dll --field-trial-handle=2012,i,10086625601037365460,10976347034918175825,262144 --disable-features=msPdfOOUI,msSmartScreenProtection,msWebOOUI --variations-seed-version --mojo-platform-channel-handle=2024 /prefetch:11
            3⤵
              PID:1768
            • C:\Program Files (x86)\Microsoft\EdgeWebView\Application\132.0.2957.140\msedgewebview2.exe
              "C:\Program Files (x86)\Microsoft\EdgeWebView\Application\132.0.2957.140\msedgewebview2.exe" --type=utility --utility-sub-type=storage.mojom.StorageService --lang=en-US --service-sandbox-type=service --string-annotations --noerrdialogs --user-data-dir="C:\Users\Admin\AppData\Local\com.cortexstudio.app\EBWebView" --webview-exe-name=cortex-studio.exe --webview-exe-version=4.0.0 --embedded-browser-webview=1 --embedded-browser-webview-dpi-awareness=2 --always-read-main-dll --field-trial-handle=2296,i,10086625601037365460,10976347034918175825,262144 --disable-features=msPdfOOUI,msSmartScreenProtection,msWebOOUI --variations-seed-version --mojo-platform-channel-handle=2260 /prefetch:13
              3⤵
                PID:4800
              • C:\Program Files (x86)\Microsoft\EdgeWebView\Application\132.0.2957.140\msedgewebview2.exe
                "C:\Program Files (x86)\Microsoft\EdgeWebView\Application\132.0.2957.140\msedgewebview2.exe" --type=renderer --string-annotations --noerrdialogs --user-data-dir="C:\Users\Admin\AppData\Local\com.cortexstudio.app\EBWebView" --webview-exe-name=cortex-studio.exe --webview-exe-version=4.0.0 --embedded-browser-webview=1 --embedded-browser-webview-dpi-awareness=2 --autoplay-policy=no-user-gesture-required --video-capture-use-gpu-memory-buffer --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --js-flags="--harmony-weak-refs-with-cleanup-some --expose-gc --ms-user-locale=" --always-read-main-dll --field-trial-handle=3508,i,10086625601037365460,10976347034918175825,262144 --disable-features=msPdfOOUI,msSmartScreenProtection,msWebOOUI --variations-seed-version --mojo-platform-channel-handle=3516 /prefetch:1
                3⤵
                  PID:2068

            Network

                  MITRE ATT&CK Enterprise v16

                  Replay Monitor

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                  Downloads

                  settings.dat

                  • Path C:\Users\Admin\AppData\Local\com.cortexstudio.app\EBWebView\Crashpad\settings.dat
                  • Size 280B
                  • SHA256 9546de941793083dcfde17baf05da8d466cc9d919306cf8ce445f273db8eb9ad
                  • MD5 SHA1 SHA512 TLSH

                  settings.dat

                  • Path C:\Users\Admin\AppData\Local\com.cortexstudio.app\EBWebView\Crashpad\settings.dat
                  • Size 280B
                  • SHA256 2468d21986c527d218f36ab2f2bf1b8c793500ba40b4e82c9beddba83e002bbb
                  • MD5 SHA1 SHA512

                  throttle_store.dat

                  • Path C:\Users\Admin\AppData\Local\com.cortexstudio.app\EBWebView\Crashpad\throttle_store.dat
                  • Size 20B
                  • SHA256 41c91a9c93d76295746a149dce7ebb3b9ee2cb551d84365fff108e59a61cc304
                  • MD5 SHA1 SHA512

                  the-real-index

                  • Path C:\Users\Admin\AppData\Local\com.cortexstudio.app\EBWebView\Default\Code Cache\js\index-dir\the-real-index
                  • Size 72B
                  • SHA256 82c0fd7f59df32dbc53a4c95dc4ecdd46a95c4323cee15381fd196f8eebea1d1
                  • MD5 SHA1 SHA512 TLSH

                  the-real-index~RFe5940b8.TMP

                  • Path C:\Users\Admin\AppData\Local\com.cortexstudio.app\EBWebView\Default\Code Cache\js\index-dir\the-real-index~RFe5940b8.TMP
                  • Size 48B
                  • SHA256 25557f568b1f6e9acc7ba1291c87f75c5b04d288cacce2f90fc418ae57b12565
                  • MD5 SHA1 SHA512

                  index

                  • Path C:\Users\Admin\AppData\Local\com.cortexstudio.app\EBWebView\Default\DawnGraphiteCache\index
                  • Size 256KB
                  • SHA256 3bd71e2f1ad7e44e8470cd39fbf6a96afd99865806e777d6f38fa01c935fe824
                  • MD5 SHA1 SHA512 SSDEEP

                  data_0

                  • Path C:\Users\Admin\AppData\Local\com.cortexstudio.app\EBWebView\Default\DawnWebGPUCache\data_0
                  • Size 8KB
                  • SHA256 d6a5fe39cd672781b256e0e3102f7022635f1d4bb7cfcc90a80fffe4d0f3877e
                  • MD5 SHA1 SHA512 SSDEEP

                  data_1

                  • Path C:\Users\Admin\AppData\Local\com.cortexstudio.app\EBWebView\Default\DawnWebGPUCache\data_1
                  • Size 264KB
                  • SHA256 902f30c1fb0597d0734bc34b979ec5d131f8f39a4b71b338083821216ec8d61b
                  • MD5 SHA1 SHA512 SSDEEP

                  data_2

                  • Path C:\Users\Admin\AppData\Local\com.cortexstudio.app\EBWebView\Default\DawnWebGPUCache\data_2
                  • Size 8KB
                  • SHA256 ec1702806f4cc7c42a82fc2b38e89835fde7c64bb32060e0823c9077ca92efb7
                  • MD5 SHA1 SHA512 SSDEEP

                  data_3

                  • Path C:\Users\Admin\AppData\Local\com.cortexstudio.app\EBWebView\Default\DawnWebGPUCache\data_3
                  • Size 8KB
                  • SHA256 e09f42c398d688dce168570291f1f92d079987deda3099a34adb9e8c0522b30c
                  • MD5 SHA1 SHA512 SSDEEP

                  MANIFEST-000001

                  • Path C:\Users\Admin\AppData\Local\com.cortexstudio.app\EBWebView\Default\Extension Rules\MANIFEST-000001
                  • Size 41B
                  • SHA256 f9d31b278e215eb0d0e9cd709edfa037e828f36214ab7906f612160fead4b2b4
                  • MD5 SHA1 SHA512

                  Network Persistent State

                  • Path C:\Users\Admin\AppData\Local\com.cortexstudio.app\EBWebView\Default\Network\Network Persistent State
                  • Size 821B
                  • SHA256 596028b90ce81d4699270457de899c7e9d1e52613808d251637edee23f330529
                  • MD5 SHA1 SHA512 TLSH

                  Network Persistent State~RFe596ba1.TMP

                  • Path C:\Users\Admin\AppData\Local\com.cortexstudio.app\EBWebView\Default\Network\Network Persistent State~RFe596ba1.TMP
                  • Size 59B
                  • SHA256 226eec4486509917aa336afebd6ff65777b75b65f1fb06891d2a857a9421a974
                  • MD5 SHA1 SHA512 TLSH

                  SCT Auditing Pending Reports

                  • Path C:\Users\Admin\AppData\Local\com.cortexstudio.app\EBWebView\Default\Network\SCT Auditing Pending Reports
                  • Size 2B
                  • SHA256 4f53cda18c2baa0c0354bb5f9a3ecbe5ed12ab4d8e11ba873c2f11161202b945
                  • MD5 SHA1 SHA512

                  Preferences

                  • Path C:\Users\Admin\AppData\Local\com.cortexstudio.app\EBWebView\Default\Preferences
                  • Size 6KB
                  • SHA256 97e382f18863ffebe14b467bc7d0d5eb6b1abe980e70875aeae9c564d0c64e06
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  Preferences

                  • Path C:\Users\Admin\AppData\Local\com.cortexstudio.app\EBWebView\Default\Preferences
                  • Size 7KB
                  • SHA256 f12a447d5922385accbf32007d45129cb4071a4ba73f0f5013617b4143e16947
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  CURRENT

                  • Path C:\Users\Admin\AppData\Local\com.cortexstudio.app\EBWebView\Default\Site Characteristics Database\CURRENT
                  • Size 16B
                  • SHA256 0f1bad70c7bd1e0a69562853ec529355462fcd0423263a3d39d6d0d70b780443
                  • MD5 SHA1 SHA512

                  Local State

                  • Path C:\Users\Admin\AppData\Local\com.cortexstudio.app\EBWebView\Local State
                  • Size 1KB
                  • SHA256 7f1e02ef0aa9e05e7a258d9e31da4e3ba17203390b62d0b35f72339b071ae2d7
                  • MD5 SHA1 SHA512 TLSH

                  Local State

                  • Path C:\Users\Admin\AppData\Local\com.cortexstudio.app\EBWebView\Local State
                  • Size 2KB
                  • SHA256 dd420a83f5880cb9d02b4ba491c36ad631663d8091f56eb09306ea5bcb2b64e8
                  • MD5 SHA1 SHA512 TLSH

                  Local State

                  • Path C:\Users\Admin\AppData\Local\com.cortexstudio.app\EBWebView\Local State
                  • Size 3KB
                  • SHA256 d7d46369b437959ec29f5611fb89bc9b99f954c370b06ea27b75bd99d5db5df2
                  • MD5 SHA1 SHA512 TLSH

                  Local State

                  • Path C:\Users\Admin\AppData\Local\com.cortexstudio.app\EBWebView\Local State
                  • Size 16KB
                  • SHA256 132f6169af138f7179d4c1f7987a49af1675e121bfb9b614e2ca5510a78aa413
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  Local State

                  • Path C:\Users\Admin\AppData\Local\com.cortexstudio.app\EBWebView\Local State
                  • Size 16KB
                  • SHA256 5e445a67c1f062e632fe21dfbb72d229be38465750830a481fb51072d5efab0b
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  Local State~RFe58eb55.TMP

                  • Path C:\Users\Admin\AppData\Local\com.cortexstudio.app\EBWebView\Local State~RFe58eb55.TMP
                  • Size 1KB
                  • SHA256 bf14bfd6ce3b91f1e27b35da8d85845ebc47c184c9594c13252a384edfe0a078
                  • MD5 SHA1 SHA512 TLSH

                  memory/672-241-0x00000198C0440000-0x00000198C0560000-memory.dmp

                  memory/672-215-0x00000198C0440000-0x00000198C0560000-memory.dmp

                  memory/672-25-0x00007FFCDD600000-0x00007FFCDD601000-memory.dmp

                  memory/2068-220-0x00000200D4ED0000-0x00000200D4FF0000-memory.dmp

                  memory/2068-128-0x00007FFCDD600000-0x00007FFCDD601000-memory.dmp