Analysis

  • user interaction
    yes
  • max time kernel
    203s
  • max time network
    187s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260513-en
  • resource tags

    arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    10/07/2026, 04:35

General

  • Target
    Madium-Bootstrapper.exe
  • Size 6.9MB
  • Sample260710-e7mzvsev2w
  • SHA256 1650251facc91ff98b7c710c9a3949ddcc1c91c08fd4c789ca0295be977c0b26
  • 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.

  • Drops file in Windows directory 1 IoCs
  • 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
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Madium-Bootstrapper.exe
    "C:\Users\Admin\AppData\Local\Temp\Madium-Bootstrapper.exe"
    1⤵
    • Checks whether UAC is enabled
    • Suspicious use of WriteProcessMemory
    PID:2664
    • 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=Madium-Bootstrapper.exe --user-data-dir="C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{09F30E84-0850-4B4D-8D87-424C61C8F51A}\wv2\EBWebView" --noerrdialogs --embedded-browser-webview-dpi-awareness=2 --mojo-named-platform-channel-pipe=2664.3484.11331452389451778396
      2⤵
      • Drops file in Windows directory
      • Enumerates system info in registry
      • Modifies data under HKEY_USERS
      • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
      • Suspicious use of WriteProcessMemory
      PID:4516
      • 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\MadiumLottie-{09F30E84-0850-4B4D-8D87-424C61C8F51A}\wv2\EBWebView /prefetch:4 --monitor-self-annotation=ptype=crashpad-handler --database=C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{09F30E84-0850-4B4D-8D87-424C61C8F51A}\wv2\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,0x170,0x7ffcee28b078,0x7ffcee28b084,0x7ffcee28b090
        3⤵
          PID:5248
        • 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\MadiumLottie-{09F30E84-0850-4B4D-8D87-424C61C8F51A}\wv2\EBWebView" --webview-exe-name=Madium-Bootstrapper.exe --embedded-browser-webview=1 --embedded-browser-webview-dpi-awareness=2 --gpu-preferences=UAAAAAAAAADgAAAEAAAAAAAAAAAAAAAAAABgAAEAAAAAAAAAAAAAAAAAAAACAAAAAAAAAAAAAAAAAAAAAAAAABAAAAAAAAAAEAAAAAAAAAAIAAAAAAAAAAgAAAAAAAAA --always-read-main-dll --field-trial-handle=1688,i,14920515325255137971,11308115048085977528,262144 --variations-seed-version --mojo-platform-channel-handle=1696 /prefetch:2
          3⤵
            PID:1696
          • 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\MadiumLottie-{09F30E84-0850-4B4D-8D87-424C61C8F51A}\wv2\EBWebView" --webview-exe-name=Madium-Bootstrapper.exe --embedded-browser-webview=1 --embedded-browser-webview-dpi-awareness=2 --always-read-main-dll --field-trial-handle=2016,i,14920515325255137971,11308115048085977528,262144 --variations-seed-version --mojo-platform-channel-handle=2024 /prefetch:11
            3⤵
              PID:6008
            • 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\MadiumLottie-{09F30E84-0850-4B4D-8D87-424C61C8F51A}\wv2\EBWebView" --webview-exe-name=Madium-Bootstrapper.exe --embedded-browser-webview=1 --embedded-browser-webview-dpi-awareness=2 --always-read-main-dll --field-trial-handle=2300,i,14920515325255137971,11308115048085977528,262144 --variations-seed-version --mojo-platform-channel-handle=1664 /prefetch:13
              3⤵
                PID:1568
              • 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\MadiumLottie-{09F30E84-0850-4B4D-8D87-424C61C8F51A}\wv2\EBWebView" --webview-exe-name=Madium-Bootstrapper.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=3584,i,14920515325255137971,11308115048085977528,262144 --variations-seed-version --mojo-platform-channel-handle=3588 /prefetch:1
                3⤵
                  PID:4912

            Network

                  MITRE ATT&CK Enterprise v16

                  Replay Monitor

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                  Downloads

                  settings.dat

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{09F30E84-0850-4B4D-8D87-424C61C8F51A}\wv2\EBWebView\Crashpad\settings.dat
                  • Size 280B
                  • SHA256 11be9e785f835efbcd2c11d40b7316043a65a8889d9948b8c90e09520bc92483
                  • MD5 SHA1 SHA512 TLSH

                  settings.dat

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{09F30E84-0850-4B4D-8D87-424C61C8F51A}\wv2\EBWebView\Crashpad\settings.dat
                  • Size 280B
                  • SHA256 2ef66d8c97c4e8c1c0045f555f352a1028717e4bd036908962a56cdfe9f250d4
                  • MD5 SHA1 SHA512 TLSH

                  settings.dat

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{09F30E84-0850-4B4D-8D87-424C61C8F51A}\wv2\EBWebView\Crashpad\settings.dat
                  • Size 280B
                  • SHA256 fe968ab9d308067b5c91b22966d7b7c8242194dec3bbceab5e6273a354735d84
                  • MD5 SHA1 SHA512

                  throttle_store.dat

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{09F30E84-0850-4B4D-8D87-424C61C8F51A}\wv2\EBWebView\Crashpad\throttle_store.dat
                  • Size 20B
                  • SHA256 41c91a9c93d76295746a149dce7ebb3b9ee2cb551d84365fff108e59a61cc304
                  • MD5 SHA1 SHA512

                  index

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{09F30E84-0850-4B4D-8D87-424C61C8F51A}\wv2\EBWebView\Default\Cache\Cache_Data\index
                  • Size 256KB
                  • SHA256 f8370860ca474447c22fecc4bfe291a8771cc5022a6f55bf23fef7c15c726f0f
                  • MD5 SHA1 SHA512 SSDEEP

                  index

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{09F30E84-0850-4B4D-8D87-424C61C8F51A}\wv2\EBWebView\Default\Code Cache\wasm\index
                  • Size 24B
                  • SHA256 fbcfe23a2ecb82b7100c50811691dde0a33aa3da8d176be9882a9db485dc0f2d
                  • MD5 SHA1 SHA512

                  the-real-index

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{09F30E84-0850-4B4D-8D87-424C61C8F51A}\wv2\EBWebView\Default\Code Cache\wasm\index-dir\the-real-index
                  • Size 48B
                  • SHA256 7dcfa09591b911948f2c8ff544682db729d8d127abdc6fbbb3e9859538b66a7d
                  • MD5 SHA1 SHA512

                  index

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{09F30E84-0850-4B4D-8D87-424C61C8F51A}\wv2\EBWebView\Default\DawnGraphiteCache\index
                  • Size 256KB
                  • SHA256 63023a91133430d773b1aec1de6d7bc3353e86607b4a8a53ea3f040499059c13
                  • MD5 SHA1 SHA512 SSDEEP

                  data_0

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{09F30E84-0850-4B4D-8D87-424C61C8F51A}\wv2\EBWebView\Default\DawnWebGPUCache\data_0
                  • Size 8KB
                  • SHA256 d6a5fe39cd672781b256e0e3102f7022635f1d4bb7cfcc90a80fffe4d0f3877e
                  • MD5 SHA1 SHA512 SSDEEP

                  data_1

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{09F30E84-0850-4B4D-8D87-424C61C8F51A}\wv2\EBWebView\Default\DawnWebGPUCache\data_1
                  • Size 264KB
                  • SHA256 902f30c1fb0597d0734bc34b979ec5d131f8f39a4b71b338083821216ec8d61b
                  • MD5 SHA1 SHA512 SSDEEP

                  data_1

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{09F30E84-0850-4B4D-8D87-424C61C8F51A}\wv2\EBWebView\Default\DawnWebGPUCache\data_1
                  • Size 264KB
                  • SHA256 b1e963d702392fb7224786e7d56d43973e9b9efd1b89c17814d7c558ffc0cdec
                  • MD5 SHA1 SHA512 SSDEEP

                  data_2

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{09F30E84-0850-4B4D-8D87-424C61C8F51A}\wv2\EBWebView\Default\DawnWebGPUCache\data_2
                  • Size 8KB
                  • SHA256 ec1702806f4cc7c42a82fc2b38e89835fde7c64bb32060e0823c9077ca92efb7
                  • MD5 SHA1 SHA512 SSDEEP

                  data_3

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{09F30E84-0850-4B4D-8D87-424C61C8F51A}\wv2\EBWebView\Default\DawnWebGPUCache\data_3
                  • Size 8KB
                  • SHA256 e09f42c398d688dce168570291f1f92d079987deda3099a34adb9e8c0522b30c
                  • MD5 SHA1 SHA512 SSDEEP

                  index

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{09F30E84-0850-4B4D-8D87-424C61C8F51A}\wv2\EBWebView\Default\DawnWebGPUCache\index
                  • Size 256KB
                  • SHA256 cd5c37288f0de593c1239cb1e61e2e1b46b65f7761e1233beed3fa5967115d56
                  • MD5 SHA1 SHA512 SSDEEP

                  MANIFEST-000001

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{09F30E84-0850-4B4D-8D87-424C61C8F51A}\wv2\EBWebView\Default\Extension Rules\MANIFEST-000001
                  • Size 41B
                  • SHA256 f9d31b278e215eb0d0e9cd709edfa037e828f36214ab7906f612160fead4b2b4
                  • MD5 SHA1 SHA512

                  SCT Auditing Pending Reports

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{09F30E84-0850-4B4D-8D87-424C61C8F51A}\wv2\EBWebView\Default\Network\SCT Auditing Pending Reports
                  • Size 2B
                  • SHA256 4f53cda18c2baa0c0354bb5f9a3ecbe5ed12ab4d8e11ba873c2f11161202b945
                  • MD5 SHA1 SHA512

                  CURRENT

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{09F30E84-0850-4B4D-8D87-424C61C8F51A}\wv2\EBWebView\Default\Site Characteristics Database\CURRENT
                  • Size 16B
                  • SHA256 0f1bad70c7bd1e0a69562853ec529355462fcd0423263a3d39d6d0d70b780443
                  • MD5 SHA1 SHA512

                  Local State

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{09F30E84-0850-4B4D-8D87-424C61C8F51A}\wv2\EBWebView\Local State
                  • Size 1KB
                  • SHA256 4a12f9e179229cec84d88b4580e3efda929cb5417d440370a2c64b28b971f3f0
                  • MD5 SHA1 SHA512 TLSH

                  Local State

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{09F30E84-0850-4B4D-8D87-424C61C8F51A}\wv2\EBWebView\Local State
                  • Size 2KB
                  • SHA256 f19c7c59d71ad70163b8374681490a9372d83ea79a8ff21b04143168853cb87e
                  • MD5 SHA1 SHA512 TLSH

                  Local State

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{09F30E84-0850-4B4D-8D87-424C61C8F51A}\wv2\EBWebView\Local State
                  • Size 3KB
                  • SHA256 69dedbeaa6206b3f89c321db39908ba27c3119e2f1870091151df95ca21864ac
                  • MD5 SHA1 SHA512 TLSH

                  Local State

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{09F30E84-0850-4B4D-8D87-424C61C8F51A}\wv2\EBWebView\Local State
                  • Size 16KB
                  • SHA256 eae2f3a23e911a2db869052a7e730be41a7a25bb1ea76bf7b5087b4a8e4686b1
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  Local State~RFe5803e3.TMP

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{09F30E84-0850-4B4D-8D87-424C61C8F51A}\wv2\EBWebView\Local State~RFe5803e3.TMP
                  • Size 1KB
                  • SHA256 8d1fd234cab55946595d4f66cab11a8fb209662162ec3404262c565288af6e0e
                  • MD5 SHA1 SHA512 TLSH

                  memory/1696-29-0x00007FFD0D010000-0x00007FFD0D011000-memory.dmp

                  memory/1696-337-0x0000021788EB0000-0x000002178904A000-memory.dmp

                  memory/4516-338-0x000001C3D4600000-0x000001C3D5600000-memory.dmp

                  memory/4912-140-0x00007FFD0D010000-0x00007FFD0D011000-memory.dmp