Analysis

  • user interaction
    yes
  • max time kernel
    98s
  • max time network
    98s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260911-en
  • resource tags

    arch:x64arch:x86image:win11-20260911-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    20/10/2026, 18:45

General

  • Target
    VolcanoInstaller.exe
  • Size 4.1MB
  • Sample261020-xecmjadv8s
  • 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 5 IoCs
  • Drops file in Windows directory 2 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 SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 14 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:1976
    • 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:5460
      • 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=5460.4144.9172216340932355446
        3⤵
        • Drops file in Windows directory
        • Enumerates system info in registry
        • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
        • Suspicious use of WriteProcessMemory
        PID:4300
        • 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=0x160,0x164,0x168,0x13c,0x170,0x7ffeb47cb078,0x7ffeb47cb084,0x7ffeb47cb090
          4⤵
            PID:2592
          • 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=1912,i,1820489682957088611,4881583190333558160,262144 --variations-seed-version --mojo-platform-channel-handle=1872 /prefetch:2
            4⤵
              PID:1120
            • 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=2148,i,1820489682957088611,4881583190333558160,262144 --variations-seed-version --mojo-platform-channel-handle=2164 /prefetch:11
              4⤵
                PID:5572
              • 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=2184,i,1820489682957088611,4881583190333558160,262144 --variations-seed-version --mojo-platform-channel-handle=2388 /prefetch:13
                4⤵
                  PID:2656
                • 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=3616,i,1820489682957088611,4881583190333558160,262144 --variations-seed-version --mojo-platform-channel-handle=3624 /prefetch:1
                  4⤵
                    PID:5168
                  • 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=unzip.mojom.Unzipper --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=4668,i,1820489682957088611,4881583190333558160,262144 --variations-seed-version --mojo-platform-channel-handle=4680 /prefetch:14
                    4⤵
                      PID:3368

              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 21.7MB
                    • SHA256 6b526dcf8390d0e4a422bbd6e22b1bdd2702bc0cb1839b64e07e7ee2206a268f
                    • 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

                    02c5422a-0aa5-400a-9761-a4326fadc5b3.tmp

                    • Path C:\Users\Admin\AppData\Local\Temp\bin\BrowserData\EBWebView\02c5422a-0aa5-400a-9761-a4326fadc5b3.tmp
                    • Size 4KB
                    • SHA256 e6ed007806e5c87c04af39f81630a9281363dbbf820a352bfbe4fffaf112fd7e
                    • MD5 SHA1 SHA512 SSDEEP TLSH

                    0cd835da-e519-4513-860e-2129f5461981.tmp

                    • Path C:\Users\Admin\AppData\Local\Temp\bin\BrowserData\EBWebView\0cd835da-e519-4513-860e-2129f5461981.tmp
                    • Size 16KB
                    • SHA256 2a18898c6621f6ed61adccf2ba8d7c1db8680f8a7a2ef8270f12562ff3de5193
                    • MD5 SHA1 SHA512 SSDEEP TLSH

                    244759c4-a051-45b7-b09d-7dffc12a2adc.tmp

                    • Path C:\Users\Admin\AppData\Local\Temp\bin\BrowserData\EBWebView\244759c4-a051-45b7-b09d-7dffc12a2adc.tmp
                    • Size 3KB
                    • SHA256 c9404268f2c03309dc9a5f3d342e95b57d286d0d8efd9ec13a5cc5e37b257615
                    • MD5 SHA1 SHA512 TLSH

                    253947c7-60d4-42cd-b5fe-3d52c474a5ab.tmp

                    • Path C:\Users\Admin\AppData\Local\Temp\bin\BrowserData\EBWebView\253947c7-60d4-42cd-b5fe-3d52c474a5ab.tmp
                    • Size 1KB
                    • SHA256 881c6e571e1b7a251e1eeebc930217be054258a09951e730f9da3ebca899b100
                    • MD5 SHA1 SHA512 TLSH

                    settings.dat

                    • Path C:\Users\Admin\AppData\Local\Temp\bin\BrowserData\EBWebView\Crashpad\settings.dat
                    • Size 280B
                    • SHA256 af24803b1e2933df15eefeccdb304172f0db748a1fea681c01d0a5a622e20e63
                    • MD5 SHA1 SHA512

                    settings.dat

                    • Path C:\Users\Admin\AppData\Local\Temp\bin\BrowserData\EBWebView\Crashpad\settings.dat
                    • Size 280B
                    • SHA256 878b879d8426c62f0578c8286826c1c9cdf2173a5b36a1efcf98e8e373142e21
                    • 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

                    950dcb46-2eed-47e9-8242-152119ca395a.tmp

                    • Path C:\Users\Admin\AppData\Local\Temp\bin\BrowserData\EBWebView\Default\950dcb46-2eed-47e9-8242-152119ca395a.tmp
                    • Size 6KB
                    • SHA256 f424b8e3af19d191687fad3170777466d7def863218d797fd2c05db7d6c8fe99
                    • 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 72B
                    • SHA256 cee4f0b321da165b644842c34659814cf85a535cb40fa0983c24e8cfd92fe49f
                    • MD5 SHA1 SHA512 TLSH

                    the-real-index

                    • Path C:\Users\Admin\AppData\Local\Temp\bin\BrowserData\EBWebView\Default\Code Cache\js\index-dir\the-real-index
                    • Size 48B
                    • SHA256 c9e91adf0cf03c37e982352b57ef81173c1ebb4c3f2a5e253b889d4c515f59ab
                    • MD5 SHA1 SHA512

                    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

                    89405cf7-4bcc-4c76-9007-621786ee767c.tmp

                    • Path C:\Users\Admin\AppData\Local\Temp\bin\BrowserData\EBWebView\Default\Network\89405cf7-4bcc-4c76-9007-621786ee767c.tmp
                    • Size 889B
                    • SHA256 2b7ca58ad0b8d938b1da66c5f6e673522dab2e6f44cb3f7fa84e696826746302
                    • MD5 SHA1 SHA512 TLSH

                    Network Persistent State

                    • Path C:\Users\Admin\AppData\Local\Temp\bin\BrowserData\EBWebView\Default\Network\Network Persistent State
                    • Size 59B
                    • SHA256 226eec4486509917aa336afebd6ff65777b75b65f1fb06891d2a857a9421a974
                    • 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

                    Preferences

                    • Path C:\Users\Admin\AppData\Local\Temp\bin\BrowserData\EBWebView\Default\Preferences
                    • Size 6KB
                    • SHA256 0232e2f849c8e5c8df38af550d36371460a1f519c4b643e0c9e4afb16eae6117
                    • 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

                    fef96f0d-db76-4c10-9275-ab4fccf6706e.tmp

                    • Path C:\Users\Admin\AppData\Local\Temp\bin\BrowserData\EBWebView\Default\fef96f0d-db76-4c10-9275-ab4fccf6706e.tmp
                    • Size 6KB
                    • SHA256 15e3f24f11a7d9625708a43ab8bd7c51ef8fa6af9bdd87ab3e30b3aa3b3f70d8
                    • MD5 SHA1 SHA512 SSDEEP TLSH

                    Local State

                    • Path C:\Users\Admin\AppData\Local\Temp\bin\BrowserData\EBWebView\Local State
                    • Size 1KB
                    • SHA256 4de5920bb5b88d0579c6fd74204c17b3002b5b26948198189af0aca191a7f13b
                    • MD5 SHA1 SHA512 TLSH

                    manifest.fingerprint

                    • Path C:\Users\Admin\AppData\Local\Temp\bin\BrowserData\EBWebView\OriginTrials\0.0.1.7\manifest.fingerprint
                    • Size 66B
                    • SHA256 946f3a9e019b0d80f5671de782f295132341f663f74aebad7628f22e528d6d52
                    • MD5 SHA1 SHA512 TLSH

                    manifest.json

                    • Path C:\Users\Admin\AppData\Local\Temp\bin\BrowserData\EBWebView\OriginTrials\0.0.1.7\manifest.json
                    • Size 43B
                    • SHA256 81bd82ac27612a58be30a72dd8956b13f883e32ffb54a58076bd6a42b8afaeea
                    • MD5 SHA1 SHA512

                    bc862d22-39b1-4a30-b459-c54e6aa60a5a.tmp

                    • Path C:\Users\Admin\AppData\Local\Temp\bin\BrowserData\EBWebView\bc862d22-39b1-4a30-b459-c54e6aa60a5a.tmp
                    • Size 2KB
                    • SHA256 c6899a9571dc45e624d1d40d774131c863bbff0ac0273a100d2aee3ae390614f
                    • MD5 SHA1 SHA512 TLSH

                    version.txt

                    • Path C:\Users\Admin\AppData\Local\Temp\bin\version.txt
                    • Size 6B
                    • SHA256 4a80d61ef9fa90a47c3443114e6ff427c3f6e2ffa1845e478af22f060c382c3b
                    • MD5 SHA1 SHA512

                    volcano-release-1976.tmp

                    • Path C:\Users\Admin\AppData\Local\Temp\volcano-release-1976.tmp
                    • Size 21.5MB
                    • SHA256 d79f357d1e35d89e29b6996607c2eb24c4eebf4c7732fcb3dba62da79d741147
                    • MD5 SHA1 SHA512 SSDEEP TLSH

                    memory/1120-226-0x000001A40FF40000-0x000001A40FF69000-memory.dmp

                    memory/1120-247-0x000001A40FF40000-0x000001A40FF69000-memory.dmp

                    memory/1120-60-0x00007FFED3620000-0x00007FFED3621000-memory.dmp

                    memory/1976-1-0x0000000140000000-0x0000000140A03000-memory.dmp

                    memory/1976-3-0x0000000140000000-0x0000000140A03000-memory.dmp

                    memory/1976-20-0x0000000140000000-0x0000000140A03000-memory.dmp

                    memory/1976-2-0x0000000140000000-0x0000000140A03000-memory.dmp

                    memory/1976-4-0x0000000140000000-0x0000000140A03000-memory.dmp

                    memory/1976-0-0x0000000140000000-0x0000000140A03000-memory.dmp

                    memory/5168-175-0x00007FFED3620000-0x00007FFED3621000-memory.dmp

                    memory/5460-246-0x0000000140000000-0x00000001434A3000-memory.dmp

                    memory/5460-264-0x0000000140000000-0x00000001434A3000-memory.dmp

                    memory/5460-222-0x0000000140000000-0x00000001434A3000-memory.dmp

                    memory/5460-25-0x0000000140000000-0x00000001434A3000-memory.dmp

                    memory/5460-274-0x0000000140000000-0x00000001434A3000-memory.dmp

                    memory/5460-26-0x0000000140000000-0x00000001434A3000-memory.dmp

                    memory/5460-292-0x0000000140000000-0x00000001434A3000-memory.dmp

                    memory/5460-294-0x0000000140000000-0x00000001434A3000-memory.dmp

                    memory/5460-296-0x0000000140000000-0x00000001434A3000-memory.dmp

                    memory/5460-39-0x0000000140000000-0x00000001434A3000-memory.dmp

                    memory/5460-27-0x0000000140000000-0x00000001434A3000-memory.dmp

                    memory/5460-28-0x0000000140000000-0x00000001434A3000-memory.dmp

                    memory/5460-29-0x0000000140000000-0x00000001434A3000-memory.dmp

                    memory/5460-334-0x0000000140000000-0x00000001434A3000-memory.dmp