Analysis

  • user interaction
    yes
  • max time kernel
    149s
  • max time network
    156s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260513-en
  • resource tags

    arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    28/06/2026, 11:13

General

  • Target
    Madium-Bootstrapper (2).exe
  • Size 6.9MB
  • Sample260628-nbmtnagy6r
  • 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
  • Modifies registry class 1 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Madium-Bootstrapper (2).exe
    "C:\Users\Admin\AppData\Local\Temp\Madium-Bootstrapper (2).exe"
    1⤵
    • Checks whether UAC is enabled
    • Suspicious use of WriteProcessMemory
    PID:396
    • 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 (2).exe" --user-data-dir="C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{56E83388-2905-4443-ADE9-34CB352B6A44}\wv2\EBWebView" --noerrdialogs --embedded-browser-webview-dpi-awareness=2 --mojo-named-platform-channel-pipe=396.3144.2371964125518250283
      2⤵
      • Drops file in Windows directory
      • Enumerates system info in registry
      • Modifies data under HKEY_USERS
      • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
      • Suspicious use of WriteProcessMemory
      PID:3296
      • 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-{56E83388-2905-4443-ADE9-34CB352B6A44}\wv2\EBWebView /prefetch:4 --monitor-self-annotation=ptype=crashpad-handler --database=C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{56E83388-2905-4443-ADE9-34CB352B6A44}\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,0x170,0x7ffa2dd0b078,0x7ffa2dd0b084,0x7ffa2dd0b090
        3⤵
          PID:4512
        • 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-{56E83388-2905-4443-ADE9-34CB352B6A44}\wv2\EBWebView" --webview-exe-name="Madium-Bootstrapper (2).exe" --embedded-browser-webview=1 --embedded-browser-webview-dpi-awareness=2 --gpu-preferences=UAAAAAAAAADgAAAEAAAAAAAAAAAAAAAAAABgAAEAAAAAAAAAAAAAAAAAAAACAAAAAAAAAAAAAAAAAAAAAAAAABAAAAAAAAAAEAAAAAAAAAAIAAAAAAAAAAgAAAAAAAAA --always-read-main-dll --field-trial-handle=1688,i,6380072633957083386,11580781273050134337,262144 --variations-seed-version --mojo-platform-channel-handle=1684 /prefetch:2
          3⤵
            PID:5072
          • 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-{56E83388-2905-4443-ADE9-34CB352B6A44}\wv2\EBWebView" --webview-exe-name="Madium-Bootstrapper (2).exe" --embedded-browser-webview=1 --embedded-browser-webview-dpi-awareness=2 --always-read-main-dll --field-trial-handle=2000,i,6380072633957083386,11580781273050134337,262144 --variations-seed-version --mojo-platform-channel-handle=2012 /prefetch:11
            3⤵
              PID:1908
            • 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-{56E83388-2905-4443-ADE9-34CB352B6A44}\wv2\EBWebView" --webview-exe-name="Madium-Bootstrapper (2).exe" --embedded-browser-webview=1 --embedded-browser-webview-dpi-awareness=2 --always-read-main-dll --field-trial-handle=2276,i,6380072633957083386,11580781273050134337,262144 --variations-seed-version --mojo-platform-channel-handle=2288 /prefetch:13
              3⤵
                PID:732
              • 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-{56E83388-2905-4443-ADE9-34CB352B6A44}\wv2\EBWebView" --webview-exe-name="Madium-Bootstrapper (2).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=3632,i,6380072633957083386,11580781273050134337,262144 --variations-seed-version --mojo-platform-channel-handle=3640 /prefetch:1
                3⤵
                  PID:236
            • C:\Windows\System32\rundll32.exe
              C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
              1⤵
                PID:3100
              • C:\Windows\system32\OpenWith.exe
                C:\Windows\system32\OpenWith.exe -Embedding
                1⤵
                • Modifies registry class
                • Suspicious behavior: GetForegroundWindowSpam
                • Suspicious use of SetWindowsHookEx
                PID:2956

              Network

                    MITRE ATT&CK Enterprise v16

                    Replay Monitor

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                    Downloads

                    settings.dat

                    • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{56E83388-2905-4443-ADE9-34CB352B6A44}\wv2\EBWebView\Crashpad\settings.dat
                    • Size 280B
                    • SHA256 bf710929504c04b2aded8db5ab1492e5357c5e7501794a4a662b3be5f369cede
                    • MD5 SHA1 SHA512 TLSH

                    settings.dat

                    • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{56E83388-2905-4443-ADE9-34CB352B6A44}\wv2\EBWebView\Crashpad\settings.dat
                    • Size 280B
                    • SHA256 bec97bc4c816189bfe5641e3a1ca9b1fc2625d090ba045b2efd839bc7d297b05
                    • MD5 SHA1 SHA512 TLSH

                    settings.dat

                    • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{56E83388-2905-4443-ADE9-34CB352B6A44}\wv2\EBWebView\Crashpad\settings.dat
                    • Size 280B
                    • SHA256 b25b84f798978c1113f0c902c707c48dc6b084cff764d197199cd0f63affedaf
                    • MD5 SHA1 SHA512

                    throttle_store.dat

                    • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{56E83388-2905-4443-ADE9-34CB352B6A44}\wv2\EBWebView\Crashpad\throttle_store.dat
                    • Size 20B
                    • SHA256 41c91a9c93d76295746a149dce7ebb3b9ee2cb551d84365fff108e59a61cc304
                    • MD5 SHA1 SHA512

                    index

                    • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{56E83388-2905-4443-ADE9-34CB352B6A44}\wv2\EBWebView\Default\Cache\Cache_Data\index
                    • Size 256KB
                    • SHA256 bab733d162964fa1f6605902f4cf46ef1a74203877a40c450e7dd883c3f46524
                    • MD5 SHA1 SHA512 SSDEEP

                    index

                    • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{56E83388-2905-4443-ADE9-34CB352B6A44}\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-{56E83388-2905-4443-ADE9-34CB352B6A44}\wv2\EBWebView\Default\Code Cache\wasm\index-dir\the-real-index
                    • Size 48B
                    • SHA256 a9e39e47f567f6cca7069cbb4283b49bd4053fa9768781027dbd3f6bda48dc04
                    • MD5 SHA1 SHA512

                    index

                    • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{56E83388-2905-4443-ADE9-34CB352B6A44}\wv2\EBWebView\Default\DawnGraphiteCache\index
                    • Size 256KB
                    • SHA256 bf96fdef62f56d274e7e142ed98aca4e8fb317df34b58a9cbcda20d3c449a97f
                    • MD5 SHA1 SHA512 SSDEEP

                    data_0

                    • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{56E83388-2905-4443-ADE9-34CB352B6A44}\wv2\EBWebView\Default\DawnWebGPUCache\data_0
                    • Size 8KB
                    • SHA256 d6a5fe39cd672781b256e0e3102f7022635f1d4bb7cfcc90a80fffe4d0f3877e
                    • MD5 SHA1 SHA512 SSDEEP

                    data_1

                    • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{56E83388-2905-4443-ADE9-34CB352B6A44}\wv2\EBWebView\Default\DawnWebGPUCache\data_1
                    • Size 264KB
                    • SHA256 902f30c1fb0597d0734bc34b979ec5d131f8f39a4b71b338083821216ec8d61b
                    • MD5 SHA1 SHA512 SSDEEP

                    data_1

                    • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{56E83388-2905-4443-ADE9-34CB352B6A44}\wv2\EBWebView\Default\DawnWebGPUCache\data_1
                    • Size 264KB
                    • SHA256 b1e963d702392fb7224786e7d56d43973e9b9efd1b89c17814d7c558ffc0cdec
                    • MD5 SHA1 SHA512 SSDEEP

                    data_2

                    • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{56E83388-2905-4443-ADE9-34CB352B6A44}\wv2\EBWebView\Default\DawnWebGPUCache\data_2
                    • Size 8KB
                    • SHA256 ec1702806f4cc7c42a82fc2b38e89835fde7c64bb32060e0823c9077ca92efb7
                    • MD5 SHA1 SHA512 SSDEEP

                    data_3

                    • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{56E83388-2905-4443-ADE9-34CB352B6A44}\wv2\EBWebView\Default\DawnWebGPUCache\data_3
                    • Size 8KB
                    • SHA256 e09f42c398d688dce168570291f1f92d079987deda3099a34adb9e8c0522b30c
                    • MD5 SHA1 SHA512 SSDEEP

                    MANIFEST-000001

                    • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{56E83388-2905-4443-ADE9-34CB352B6A44}\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-{56E83388-2905-4443-ADE9-34CB352B6A44}\wv2\EBWebView\Default\Network\SCT Auditing Pending Reports
                    • Size 2B
                    • SHA256 4f53cda18c2baa0c0354bb5f9a3ecbe5ed12ab4d8e11ba873c2f11161202b945
                    • MD5 SHA1 SHA512

                    CURRENT

                    • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{56E83388-2905-4443-ADE9-34CB352B6A44}\wv2\EBWebView\Default\Site Characteristics Database\CURRENT
                    • Size 16B
                    • SHA256 0f1bad70c7bd1e0a69562853ec529355462fcd0423263a3d39d6d0d70b780443
                    • MD5 SHA1 SHA512

                    Local State

                    • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{56E83388-2905-4443-ADE9-34CB352B6A44}\wv2\EBWebView\Local State
                    • Size 2KB
                    • SHA256 0c0749ec6d6cea914c6c008b3fc7e510b567b45b37bdc6bbe37a996db3f0e1e3
                    • MD5 SHA1 SHA512 TLSH

                    Local State

                    • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{56E83388-2905-4443-ADE9-34CB352B6A44}\wv2\EBWebView\Local State
                    • Size 1KB
                    • SHA256 3988c8a8bde646e1de55408d5153cd9836a199555764e107d0acd4beba6027ac
                    • MD5 SHA1 SHA512 TLSH

                    Local State

                    • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{56E83388-2905-4443-ADE9-34CB352B6A44}\wv2\EBWebView\Local State
                    • Size 3KB
                    • SHA256 42fea6b5297e286e952e6e2b768c30d0834eaea56ac21ab8717f3df21dabc018
                    • MD5 SHA1 SHA512 TLSH

                    Local State

                    • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{56E83388-2905-4443-ADE9-34CB352B6A44}\wv2\EBWebView\Local State
                    • Size 16KB
                    • SHA256 873385635375c05cb38b6b0320671a00b693204206a0659dc1085872019639f8
                    • MD5 SHA1 SHA512 SSDEEP TLSH

                    Local State~RFe57e9b4.TMP

                    • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{56E83388-2905-4443-ADE9-34CB352B6A44}\wv2\EBWebView\Local State~RFe57e9b4.TMP
                    • Size 1KB
                    • SHA256 b46cacc86bf729ac6e7390b31f917d5e183e517c4b9f2bb79225d0c463c03c8d
                    • MD5 SHA1 SHA512 TLSH

                    memory/236-128-0x00007FFA3CA40000-0x00007FFA3CA41000-memory.dmp

                    memory/236-272-0x000002796DD90000-0x000002796DDFF000-memory.dmp

                    memory/5072-29-0x00007FFA3CA40000-0x00007FFA3CA41000-memory.dmp