Analysis

  • user interaction
    yes
  • max time kernel
    43s
  • max time network
    36s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260911-en
  • resource tags

    arch:x64arch:x86image:win11-20260911-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    30/10/2026, 22:33

General

  • Target
    VolcanoInstaller.exe
  • Size 4.1MB
  • Sample261030-2gp3vsfv9w
  • SHA256 8ffe53aa8140887b7d62e9fe68357b3c1f9f584634082f641a2c40b2fd2242f1
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 2 IoCs
  • Checks BIOS information in registry 2 TTPs 4 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Checks whether UAC is enabled 1 TTPs 2 IoCs
  • Network Share Discovery 1 TTPs

    Attempt to gather information on host network.

  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 TTPs 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Reads the TCP/IP host and domain name from the registry 1 TTPs 4 IoCs

    The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 1 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SendNotifyMessage 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\VolcanoInstaller.exe
    "C:\Users\Admin\AppData\Local\Temp\VolcanoInstaller.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Reads the TCP/IP host and domain name from the registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1184
    • C:\Users\Admin\AppData\Local\Temp\VolcanoUI.exe
      "C:\Users\Admin\AppData\Local\Temp\VolcanoUI.exe"
      2⤵
      • Identifies VirtualBox via ACPI registry values (likely anti-VM)
      • Checks BIOS information in registry
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks whether UAC is enabled
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Reads the TCP/IP host and domain name from the registry
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2468
      • 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=VolcanoUI.exe --user-data-dir="C:\Users\Admin\AppData\Local\Temp\bin\BrowserData\EBWebView" --noerrdialogs --embedded-browser-webview-dpi-awareness=2 --mojo-named-platform-channel-pipe=2468.5000.11780685506407443300
        3⤵
        • Enumerates system info in registry
        • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        • Suspicious use of WriteProcessMemory
        PID:4772
        • 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\Temp\bin\BrowserData\EBWebView /prefetch:4 --monitor-self-annotation=ptype=crashpad-handler --database=C:\Users\Admin\AppData\Local\Temp\bin\BrowserData\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=0x164,0x168,0x16c,0x140,0x174,0x7fffd9c4b078,0x7fffd9c4b084,0x7fffd9c4b090
          4⤵
            PID:344
          • 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\Temp\bin\BrowserData\EBWebView" --webview-exe-name=VolcanoUI.exe --embedded-browser-webview=1 --embedded-browser-webview-dpi-awareness=2 --gpu-preferences=UAAAAAAAAADgAAAEAAAAAAAAAAAAAAAAAABgAAEAAAAAAAAAAAAAAAAAAAACAAAAAAAAAAAAAAAAAAAAAAAAABAAAAAAAAAAEAAAAAAAAAAIAAAAAAAAAAgAAAAAAAAA --always-read-main-dll --field-trial-handle=1704,i,13799466721553689464,5203795731868498296,262144 --variations-seed-version --mojo-platform-channel-handle=1700 /prefetch:2
            4⤵
              PID:2516
            • 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\Temp\bin\BrowserData\EBWebView" --webview-exe-name=VolcanoUI.exe --embedded-browser-webview=1 --embedded-browser-webview-dpi-awareness=2 --always-read-main-dll --field-trial-handle=2016,i,13799466721553689464,5203795731868498296,262144 --variations-seed-version --mojo-platform-channel-handle=2032 /prefetch:11
              4⤵
                PID:3928
              • 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\Temp\bin\BrowserData\EBWebView" --webview-exe-name=VolcanoUI.exe --embedded-browser-webview=1 --embedded-browser-webview-dpi-awareness=2 --always-read-main-dll --field-trial-handle=2296,i,13799466721553689464,5203795731868498296,262144 --variations-seed-version --mojo-platform-channel-handle=2292 /prefetch:13
                4⤵
                  PID:3972
                • 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\Temp\bin\BrowserData\EBWebView" --webview-exe-name=VolcanoUI.exe --embedded-browser-webview=1 --embedded-browser-webview-dpi-awareness=2 --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=3636,i,13799466721553689464,5203795731868498296,262144 --variations-seed-version --mojo-platform-channel-handle=3644 /prefetch:1
                  4⤵
                    PID:3136

            Network

                  MITRE ATT&CK Enterprise v16

                  Replay Monitor

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                  Downloads

                  VolcanoUI.exe

                  • Path C:\Users\Admin\AppData\Local\Temp\VolcanoUI.exe
                  • Size 19.4MB
                  • SHA256 3b8cbd652715980467926d307096cb3154b715ae1d1c73bc9d9c060e2b30587f
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  WebView2Loader.dll

                  • Path C:\Users\Admin\AppData\Local\Temp\WebView2Loader.dll
                  • Size 162KB
                  • SHA256 a8a6cd8d6df1f913671bcd96b6298b6f53fd066a84ae891e4d865bc1b8e8e9e4
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  0ff0729a-602c-4f58-b5a9-aeaca4d83c0f.tmp

                  • Path C:\Users\Admin\AppData\Local\Temp\bin\BrowserData\EBWebView\0ff0729a-602c-4f58-b5a9-aeaca4d83c0f.tmp
                  • Size 1KB
                  • SHA256 5e5679188306d35bee4bf7212d31a8123409b7a8941114dd1a8d246cefa178c8
                  • MD5 SHA1 SHA512 TLSH

                  2b34a449-9f35-4353-b2dd-91ae57da9f65.tmp

                  • Path C:\Users\Admin\AppData\Local\Temp\bin\BrowserData\EBWebView\2b34a449-9f35-4353-b2dd-91ae57da9f65.tmp
                  • Size 3KB
                  • SHA256 c1d5f91fccb161685ffbd215036b1d7d7ae3fd92f934b28e872afec879b77fb2
                  • MD5 SHA1 SHA512 TLSH

                  2fac304e-0be6-4203-84b2-976ccd7831b3.tmp

                  • Path C:\Users\Admin\AppData\Local\Temp\bin\BrowserData\EBWebView\2fac304e-0be6-4203-84b2-976ccd7831b3.tmp
                  • Size 2KB
                  • SHA256 c9c157173987aedb5ebf19850b792d6cc7b246116b10ee35db08c997627184de
                  • MD5 SHA1 SHA512 TLSH

                  3803124b-f263-4acd-9b96-ce3608b53646.tmp

                  • Path C:\Users\Admin\AppData\Local\Temp\bin\BrowserData\EBWebView\3803124b-f263-4acd-9b96-ce3608b53646.tmp
                  • Size 16KB
                  • SHA256 54870ff1d3cb59f224d4e38e45d2677fa84f53787e3769c08978b2fc72860629
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  settings.dat

                  • Path C:\Users\Admin\AppData\Local\Temp\bin\BrowserData\EBWebView\Crashpad\settings.dat
                  • Size 280B
                  • SHA256 b1ff448bc600e3d93c89363d13ef4a74c5e8a4ac0d998e4cf4a184d1ef99d900
                  • MD5 SHA1 SHA512

                  settings.dat

                  • Path C:\Users\Admin\AppData\Local\Temp\bin\BrowserData\EBWebView\Crashpad\settings.dat
                  • Size 280B
                  • SHA256 69e09df8dcc9fab660985c6abc379b632b48e0c56d117813b9c6f9213830d2e5
                  • MD5 SHA1 SHA512 TLSH

                  throttle_store.dat

                  • Path C:\Users\Admin\AppData\Local\Temp\bin\BrowserData\EBWebView\Crashpad\throttle_store.dat
                  • Size 20B
                  • SHA256 41c91a9c93d76295746a149dce7ebb3b9ee2cb551d84365fff108e59a61cc304
                  • MD5 SHA1 SHA512

                  4e3e12f5-4054-47eb-9069-2d4a9b562741.tmp

                  • Path C:\Users\Admin\AppData\Local\Temp\bin\BrowserData\EBWebView\Default\4e3e12f5-4054-47eb-9069-2d4a9b562741.tmp
                  • Size 6KB
                  • SHA256 cd55dffc1ea5d19c04322f8902b51e7afe702031638a6cf7467a2dbe87f6c192
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  temp-index

                  • Path C:\Users\Admin\AppData\Local\Temp\bin\BrowserData\EBWebView\Default\Code Cache\js\index-dir\temp-index
                  • Size 48B
                  • SHA256 283cae862955ce29d509b5f444379a1bcd51b5a78cf90cc65fe014b06e8687d7
                  • MD5 SHA1 SHA512

                  temp-index

                  • Path C:\Users\Admin\AppData\Local\Temp\bin\BrowserData\EBWebView\Default\Code Cache\js\index-dir\temp-index
                  • Size 72B
                  • SHA256 c8b9a5b0132de59df07a903dfab4dcefa890be47e124b9183fab50da13122ca9
                  • MD5 SHA1 SHA512 TLSH

                  data_0

                  • Path C:\Users\Admin\AppData\Local\Temp\bin\BrowserData\EBWebView\Default\GPUCache\data_0
                  • Size 8KB
                  • SHA256 d6a5fe39cd672781b256e0e3102f7022635f1d4bb7cfcc90a80fffe4d0f3877e
                  • MD5 SHA1 SHA512 SSDEEP

                  data_1

                  • Path C:\Users\Admin\AppData\Local\Temp\bin\BrowserData\EBWebView\Default\GPUCache\data_1
                  • Size 264KB
                  • SHA256 902f30c1fb0597d0734bc34b979ec5d131f8f39a4b71b338083821216ec8d61b
                  • MD5 SHA1 SHA512 SSDEEP

                  data_2

                  • Path C:\Users\Admin\AppData\Local\Temp\bin\BrowserData\EBWebView\Default\GPUCache\data_2
                  • Size 8KB
                  • SHA256 ec1702806f4cc7c42a82fc2b38e89835fde7c64bb32060e0823c9077ca92efb7
                  • MD5 SHA1 SHA512 SSDEEP

                  data_3

                  • Path C:\Users\Admin\AppData\Local\Temp\bin\BrowserData\EBWebView\Default\GPUCache\data_3
                  • Size 8KB
                  • SHA256 e09f42c398d688dce168570291f1f92d079987deda3099a34adb9e8c0522b30c
                  • MD5 SHA1 SHA512 SSDEEP

                  7a2d0b3e-5090-47a8-b620-3d72702a9a70.tmp

                  • Path C:\Users\Admin\AppData\Local\Temp\bin\BrowserData\EBWebView\Default\Network\7a2d0b3e-5090-47a8-b620-3d72702a9a70.tmp
                  • Size 352B
                  • SHA256 01fa06d259a7ca6be43f5f37f9e3262319ce45d029e0a5cfcd3ff339da1b67ad
                  • MD5 SHA1 SHA512 TLSH

                  SCT Auditing Pending Reports

                  • Path C:\Users\Admin\AppData\Local\Temp\bin\BrowserData\EBWebView\Default\Network\SCT Auditing Pending Reports
                  • Size 2B
                  • SHA256 4f53cda18c2baa0c0354bb5f9a3ecbe5ed12ab4d8e11ba873c2f11161202b945
                  • MD5 SHA1 SHA512

                  TransportSecurity

                  • Path C:\Users\Admin\AppData\Local\Temp\bin\BrowserData\EBWebView\Default\Network\TransportSecurity
                  • Size 187B
                  • SHA256 bc5166627f5fbadabafa270f4380d517944c23848827fce24943d97367261f49
                  • MD5 SHA1 SHA512 TLSH

                  Preferences

                  • Path C:\Users\Admin\AppData\Local\Temp\bin\BrowserData\EBWebView\Default\Preferences
                  • Size 6KB
                  • SHA256 810652730def557fc4b91a0df93af47f78b2e8c9c1a3ddd5487040d7d6c21f4a
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  MANIFEST-000001

                  • Path C:\Users\Admin\AppData\Local\Temp\bin\BrowserData\EBWebView\Default\Site Characteristics Database\MANIFEST-000001
                  • Size 41B
                  • SHA256 f9d31b278e215eb0d0e9cd709edfa037e828f36214ab7906f612160fead4b2b4
                  • MD5 SHA1 SHA512

                  CURRENT

                  • Path C:\Users\Admin\AppData\Local\Temp\bin\BrowserData\EBWebView\Default\Sync Data\LevelDB\CURRENT
                  • Size 16B
                  • SHA256 0f1bad70c7bd1e0a69562853ec529355462fcd0423263a3d39d6d0d70b780443
                  • MD5 SHA1 SHA512

                  Local State

                  • Path C:\Users\Admin\AppData\Local\Temp\bin\BrowserData\EBWebView\Local State
                  • Size 1KB
                  • SHA256 5905993cdac8ff71fcb8b4b84616c51f6c54a73337abb1e11db6ecce0a66e3a9
                  • MD5 SHA1 SHA512 TLSH

                  ff9a74ca-2173-489b-a267-53326b7b0788.tmp

                  • Path C:\Users\Admin\AppData\Local\Temp\bin\BrowserData\EBWebView\ff9a74ca-2173-489b-a267-53326b7b0788.tmp
                  • Size 4KB
                  • SHA256 95a6c60b60b5863e4b44b264f39edf11f4b53860f95ad2f215dd799045547085
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  version.txt

                  • Path C:\Users\Admin\AppData\Local\Temp\bin\version.txt
                  • Size 8B
                  • SHA256 18457bd256750ddfef2c18337c72abf587c7001f372d826a0eda2ec2f52c5eea
                  • MD5 SHA1 SHA512

                  memory/1184-0-0x0000000140000000-0x0000000140A03000-memory.dmp

                  memory/1184-1-0x0000000140000000-0x0000000140A03000-memory.dmp

                  memory/1184-3-0x0000000140000000-0x0000000140A03000-memory.dmp

                  memory/1184-2-0x0000000140000000-0x0000000140A03000-memory.dmp

                  memory/1184-4-0x0000000140000000-0x0000000140A03000-memory.dmp

                  memory/1184-18-0x0000000140000000-0x0000000140A03000-memory.dmp

                  memory/1184-10-0x0000000140000000-0x0000000140A03000-memory.dmp

                  memory/2468-19-0x0000000140000000-0x0000000142F8E000-memory.dmp

                  memory/2468-209-0x0000000140000000-0x0000000142F8E000-memory.dmp

                  memory/2468-28-0x0000000140000000-0x0000000142F8E000-memory.dmp

                  memory/2468-213-0x0000000140000000-0x0000000142F8E000-memory.dmp

                  memory/2468-245-0x0000000140000000-0x0000000142F8E000-memory.dmp

                  memory/2468-247-0x0000000140000000-0x0000000142F8E000-memory.dmp

                  memory/2468-24-0x0000000140000000-0x0000000142F8E000-memory.dmp

                  memory/2468-25-0x0000000140000000-0x0000000142F8E000-memory.dmp

                  memory/2468-26-0x0000000140000000-0x0000000142F8E000-memory.dmp

                  memory/2468-27-0x0000000140000000-0x0000000142F8E000-memory.dmp

                  memory/2516-60-0x00007FFFF8F10000-0x00007FFFF8F11000-memory.dmp

                  memory/3136-174-0x00007FFFF8F10000-0x00007FFFF8F11000-memory.dmp