Resubmissions

10/07/2026, 05:57

260710-gnvxgafs2x6

10/07/2026, 05:56

260710-gnbtlafs2w6

Analysis

  • user interaction
    yes
  • max time kernel
    76s
  • max time network
    78s
  • 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, 05:57

General

  • Target
    Madium-Bootstrapper.exe
  • Size 6.9MB
  • Sample260710-gnvxgafs2x
  • 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:1264
    • 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-{4F5B70F3-EF95-4A63-98CD-32CC44358A8D}\wv2\EBWebView" --noerrdialogs --embedded-browser-webview-dpi-awareness=2 --mojo-named-platform-channel-pipe=1264.2400.11690045286901656128
      2⤵
      • Drops file in Windows directory
      • Enumerates system info in registry
      • Modifies data under HKEY_USERS
      • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
      • Suspicious use of WriteProcessMemory
      PID:3564
      • 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-{4F5B70F3-EF95-4A63-98CD-32CC44358A8D}\wv2\EBWebView /prefetch:4 --monitor-self-annotation=ptype=crashpad-handler --database=C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{4F5B70F3-EF95-4A63-98CD-32CC44358A8D}\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=0x160,0x164,0x168,0x144,0x170,0x7ff9fd6bb078,0x7ff9fd6bb084,0x7ff9fd6bb090
        3⤵
          PID:3200
        • 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-{4F5B70F3-EF95-4A63-98CD-32CC44358A8D}\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=1724,i,7653892177663781773,6775050496213088879,262144 --variations-seed-version --mojo-platform-channel-handle=1656 /prefetch:2
          3⤵
            PID:1528
          • 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-{4F5B70F3-EF95-4A63-98CD-32CC44358A8D}\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=1376,i,7653892177663781773,6775050496213088879,262144 --variations-seed-version --mojo-platform-channel-handle=2040 /prefetch:11
            3⤵
              PID:3472
            • 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-{4F5B70F3-EF95-4A63-98CD-32CC44358A8D}\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=2288,i,7653892177663781773,6775050496213088879,262144 --variations-seed-version --mojo-platform-channel-handle=1712 /prefetch:13
              3⤵
                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" --type=renderer --string-annotations --noerrdialogs --user-data-dir="C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{4F5B70F3-EF95-4A63-98CD-32CC44358A8D}\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=3564,i,7653892177663781773,6775050496213088879,262144 --variations-seed-version --mojo-platform-channel-handle=3588 /prefetch:1
                3⤵
                  PID:3720

            Network

                  MITRE ATT&CK Enterprise v16

                  Replay Monitor

                  Loading Replay Monitor...

                  Downloads

                  settings.dat

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{4F5B70F3-EF95-4A63-98CD-32CC44358A8D}\wv2\EBWebView\Crashpad\settings.dat
                  • Size 280B
                  • SHA256 d77fd0ac0db66e8a6e028b6546d44b490644540fecfa33b6f0eae5bd408df311
                  • MD5 SHA1 SHA512 TLSH

                  settings.dat

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{4F5B70F3-EF95-4A63-98CD-32CC44358A8D}\wv2\EBWebView\Crashpad\settings.dat
                  • Size 280B
                  • SHA256 234be2b98c63f72f8ed2e2b7ffeab22ede3a57ea3a784c8bda19db06a245883c
                  • MD5 SHA1 SHA512 TLSH

                  settings.dat

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{4F5B70F3-EF95-4A63-98CD-32CC44358A8D}\wv2\EBWebView\Crashpad\settings.dat
                  • Size 280B
                  • SHA256 8b6f47a07ab5fb5bb9a45e23bad50ae37f875ae1a1d9946ee676914713863eff
                  • MD5 SHA1 SHA512

                  throttle_store.dat

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{4F5B70F3-EF95-4A63-98CD-32CC44358A8D}\wv2\EBWebView\Crashpad\throttle_store.dat
                  • Size 20B
                  • SHA256 41c91a9c93d76295746a149dce7ebb3b9ee2cb551d84365fff108e59a61cc304
                  • MD5 SHA1 SHA512

                  index

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{4F5B70F3-EF95-4A63-98CD-32CC44358A8D}\wv2\EBWebView\Default\Cache\Cache_Data\index
                  • Size 256KB
                  • SHA256 eacf6db62ad0ed29c63fa26f3944bc37199a65999d53bfb6ffc6f5ae9effe870
                  • MD5 SHA1 SHA512 SSDEEP

                  index

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{4F5B70F3-EF95-4A63-98CD-32CC44358A8D}\wv2\EBWebView\Default\Code Cache\js\index
                  • Size 24B
                  • SHA256 fbcfe23a2ecb82b7100c50811691dde0a33aa3da8d176be9882a9db485dc0f2d
                  • MD5 SHA1 SHA512

                  the-real-index

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{4F5B70F3-EF95-4A63-98CD-32CC44358A8D}\wv2\EBWebView\Default\Code Cache\js\index-dir\the-real-index
                  • Size 48B
                  • SHA256 97927fefb2c5fd9cd03b4d6be126bf0a8c5074e2912bef66fd954be6b6dbd7b3
                  • MD5 SHA1 SHA512

                  index

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{4F5B70F3-EF95-4A63-98CD-32CC44358A8D}\wv2\EBWebView\Default\DawnGraphiteCache\index
                  • Size 256KB
                  • SHA256 0f85af89540d301d6fb4698c1a6fd1b68c1d5085717fc76e31fac25da8221a70
                  • MD5 SHA1 SHA512 SSDEEP

                  data_0

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{4F5B70F3-EF95-4A63-98CD-32CC44358A8D}\wv2\EBWebView\Default\DawnWebGPUCache\data_0
                  • Size 8KB
                  • SHA256 d6a5fe39cd672781b256e0e3102f7022635f1d4bb7cfcc90a80fffe4d0f3877e
                  • MD5 SHA1 SHA512 SSDEEP

                  data_1

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{4F5B70F3-EF95-4A63-98CD-32CC44358A8D}\wv2\EBWebView\Default\DawnWebGPUCache\data_1
                  • Size 264KB
                  • SHA256 902f30c1fb0597d0734bc34b979ec5d131f8f39a4b71b338083821216ec8d61b
                  • MD5 SHA1 SHA512 SSDEEP

                  data_1

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{4F5B70F3-EF95-4A63-98CD-32CC44358A8D}\wv2\EBWebView\Default\DawnWebGPUCache\data_1
                  • Size 264KB
                  • SHA256 b1e963d702392fb7224786e7d56d43973e9b9efd1b89c17814d7c558ffc0cdec
                  • MD5 SHA1 SHA512 SSDEEP

                  data_2

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{4F5B70F3-EF95-4A63-98CD-32CC44358A8D}\wv2\EBWebView\Default\DawnWebGPUCache\data_2
                  • Size 8KB
                  • SHA256 ec1702806f4cc7c42a82fc2b38e89835fde7c64bb32060e0823c9077ca92efb7
                  • MD5 SHA1 SHA512 SSDEEP

                  data_3

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{4F5B70F3-EF95-4A63-98CD-32CC44358A8D}\wv2\EBWebView\Default\DawnWebGPUCache\data_3
                  • Size 8KB
                  • SHA256 e09f42c398d688dce168570291f1f92d079987deda3099a34adb9e8c0522b30c
                  • MD5 SHA1 SHA512 SSDEEP

                  MANIFEST-000001

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{4F5B70F3-EF95-4A63-98CD-32CC44358A8D}\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-{4F5B70F3-EF95-4A63-98CD-32CC44358A8D}\wv2\EBWebView\Default\Network\SCT Auditing Pending Reports
                  • Size 2B
                  • SHA256 4f53cda18c2baa0c0354bb5f9a3ecbe5ed12ab4d8e11ba873c2f11161202b945
                  • MD5 SHA1 SHA512

                  CURRENT

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{4F5B70F3-EF95-4A63-98CD-32CC44358A8D}\wv2\EBWebView\Default\Site Characteristics Database\CURRENT
                  • Size 16B
                  • SHA256 0f1bad70c7bd1e0a69562853ec529355462fcd0423263a3d39d6d0d70b780443
                  • MD5 SHA1 SHA512

                  Local State

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{4F5B70F3-EF95-4A63-98CD-32CC44358A8D}\wv2\EBWebView\Local State
                  • Size 1KB
                  • SHA256 3a8ebe6ef06bb22ef6c491fdf05738992e7a602e4ba807e368a1863938a0dc8b
                  • MD5 SHA1 SHA512 TLSH

                  Local State

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{4F5B70F3-EF95-4A63-98CD-32CC44358A8D}\wv2\EBWebView\Local State
                  • Size 2KB
                  • SHA256 9f4ff63f7a873ca5ecf52432bbdca2134e3dc4134659d1ea76d2ab3b47570b3a
                  • MD5 SHA1 SHA512 TLSH

                  Local State

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{4F5B70F3-EF95-4A63-98CD-32CC44358A8D}\wv2\EBWebView\Local State
                  • Size 3KB
                  • SHA256 3af0c7a9f6ef65d0a6d4c8dc5f778c47dbbc06165a6a61bc458c3a7fb71df2a4
                  • MD5 SHA1 SHA512 TLSH

                  Local State

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{4F5B70F3-EF95-4A63-98CD-32CC44358A8D}\wv2\EBWebView\Local State
                  • Size 16KB
                  • SHA256 7a345bb3d8766121f9987b62a56ffd9abdfc31de9aa6d89e1853842964e74ef0
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  Local State~RFe57f53d.TMP

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{4F5B70F3-EF95-4A63-98CD-32CC44358A8D}\wv2\EBWebView\Local State~RFe57f53d.TMP
                  • Size 1KB
                  • SHA256 12a217abdb759a9acc6bfd20f889a16c459c9a92992675832cf7b8937867dba6
                  • MD5 SHA1 SHA512 TLSH

                  memory/1528-29-0x00007FFA0C790000-0x00007FFA0C791000-memory.dmp

                  memory/1528-338-0x0000020F19340000-0x0000020F193DE000-memory.dmp

                  memory/3720-153-0x00007FFA0C790000-0x00007FFA0C791000-memory.dmp

                  memory/3720-339-0x000002040C620000-0x000002040C6BE000-memory.dmp