Analysis

  • user interaction
    yes
  • max time kernel
    93s
  • max time network
    94s
  • platform
    windows10-ltsc_2021_x64
  • resource
    win10ltsc2021-20260513-en
  • resource tags

    arch:x64arch:x86image:win10ltsc2021-20260513-enlocale:en-usos:windows10-ltsc_2021-x64systemwindows
  • submitted
    07/07/2026, 03:44

General

  • Target
    Madium-Bootstrapper.exe
  • Size 6.9MB
  • Sample260707-ean6nahs21
  • 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:2368
    • 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-{550FE99F-031A-41CC-8408-3248F9D2ED5F}\wv2\EBWebView" --noerrdialogs --embedded-browser-webview-dpi-awareness=2 --mojo-named-platform-channel-pipe=2368.4560.16624411784398194947
      2⤵
      • Drops file in Windows directory
      • Enumerates system info in registry
      • Modifies data under HKEY_USERS
      • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
      • Suspicious use of WriteProcessMemory
      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=crashpad-handler --user-data-dir=C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{550FE99F-031A-41CC-8408-3248F9D2ED5F}\wv2\EBWebView /prefetch:4 --monitor-self-annotation=ptype=crashpad-handler --database=C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{550FE99F-031A-41CC-8408-3248F9D2ED5F}\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=0x188,0x18c,0x190,0x164,0x104,0x7ffd0d71b078,0x7ffd0d71b084,0x7ffd0d71b090
        3⤵
          PID:2404
        • 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-{550FE99F-031A-41CC-8408-3248F9D2ED5F}\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=1788,i,5499822596447357303,6543939852722063060,262144 --variations-seed-version --mojo-platform-channel-handle=1784 /prefetch:2
          3⤵
            PID:4068
          • 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-{550FE99F-031A-41CC-8408-3248F9D2ED5F}\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=1900,i,5499822596447357303,6543939852722063060,262144 --variations-seed-version --mojo-platform-channel-handle=2248 /prefetch:3
            3⤵
              PID:4048
            • 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-{550FE99F-031A-41CC-8408-3248F9D2ED5F}\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=2332,i,5499822596447357303,6543939852722063060,262144 --variations-seed-version --mojo-platform-channel-handle=2500 /prefetch:8
              3⤵
                PID:3488
              • 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-{550FE99F-031A-41CC-8408-3248F9D2ED5F}\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=3568,i,5499822596447357303,6543939852722063060,262144 --variations-seed-version --mojo-platform-channel-handle=3588 /prefetch:1
                3⤵
                  PID:4752

            Network

                  MITRE ATT&CK Enterprise v16

                  Replay Monitor

                  Loading Replay Monitor...

                  Downloads

                  settings.dat

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{550FE99F-031A-41CC-8408-3248F9D2ED5F}\wv2\EBWebView\Crashpad\settings.dat
                  • Size 280B
                  • SHA256 218c0d1b6abe978bb3984a3c3f18a67491ae385eb672ddf474b2864f6e79d025
                  • MD5 SHA1 SHA512 TLSH

                  settings.dat

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{550FE99F-031A-41CC-8408-3248F9D2ED5F}\wv2\EBWebView\Crashpad\settings.dat
                  • Size 280B
                  • SHA256 ddead6eb40e99bf98958ab0795c536087e48212b1ea581ef1793abff25888d63
                  • MD5 SHA1 SHA512 TLSH

                  settings.dat

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{550FE99F-031A-41CC-8408-3248F9D2ED5F}\wv2\EBWebView\Crashpad\settings.dat
                  • Size 280B
                  • SHA256 35444b31c06a8ce6ba0e4c2c68e8f16036391e2a689685788a65f1533ff23185
                  • MD5 SHA1 SHA512

                  throttle_store.dat

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{550FE99F-031A-41CC-8408-3248F9D2ED5F}\wv2\EBWebView\Crashpad\throttle_store.dat
                  • Size 20B
                  • SHA256 41c91a9c93d76295746a149dce7ebb3b9ee2cb551d84365fff108e59a61cc304
                  • MD5 SHA1 SHA512

                  4dd086a3-0ec4-4e7e-93c5-d407305db61c.tmp

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{550FE99F-031A-41CC-8408-3248F9D2ED5F}\wv2\EBWebView\Default\Network\4dd086a3-0ec4-4e7e-93c5-d407305db61c.tmp
                  • Size 2B
                  • SHA256 4f53cda18c2baa0c0354bb5f9a3ecbe5ed12ab4d8e11ba873c2f11161202b945
                  • MD5 SHA1 SHA512

                  MANIFEST-000001

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{550FE99F-031A-41CC-8408-3248F9D2ED5F}\wv2\EBWebView\Default\Sync Data\LevelDB\MANIFEST-000001
                  • Size 41B
                  • SHA256 f9d31b278e215eb0d0e9cd709edfa037e828f36214ab7906f612160fead4b2b4
                  • MD5 SHA1 SHA512

                  000001.dbtmp

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{550FE99F-031A-41CC-8408-3248F9D2ED5F}\wv2\EBWebView\Default\shared_proto_db\metadata\000001.dbtmp
                  • Size 16B
                  • SHA256 0f1bad70c7bd1e0a69562853ec529355462fcd0423263a3d39d6d0d70b780443
                  • MD5 SHA1 SHA512

                  data_0

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{550FE99F-031A-41CC-8408-3248F9D2ED5F}\wv2\EBWebView\GrShaderCache\data_0
                  • Size 8KB
                  • SHA256 d6a5fe39cd672781b256e0e3102f7022635f1d4bb7cfcc90a80fffe4d0f3877e
                  • MD5 SHA1 SHA512 SSDEEP

                  data_1

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{550FE99F-031A-41CC-8408-3248F9D2ED5F}\wv2\EBWebView\GrShaderCache\data_1
                  • Size 264KB
                  • SHA256 902f30c1fb0597d0734bc34b979ec5d131f8f39a4b71b338083821216ec8d61b
                  • MD5 SHA1 SHA512 SSDEEP

                  data_2

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{550FE99F-031A-41CC-8408-3248F9D2ED5F}\wv2\EBWebView\GrShaderCache\data_2
                  • Size 8KB
                  • SHA256 ec1702806f4cc7c42a82fc2b38e89835fde7c64bb32060e0823c9077ca92efb7
                  • MD5 SHA1 SHA512 SSDEEP

                  data_3

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{550FE99F-031A-41CC-8408-3248F9D2ED5F}\wv2\EBWebView\GrShaderCache\data_3
                  • Size 8KB
                  • SHA256 e09f42c398d688dce168570291f1f92d079987deda3099a34adb9e8c0522b30c
                  • MD5 SHA1 SHA512 SSDEEP

                  Local State

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{550FE99F-031A-41CC-8408-3248F9D2ED5F}\wv2\EBWebView\Local State
                  • Size 1KB
                  • SHA256 7ba3d1a4e07974ef039e1c2f82c9d596d81ba3028c8b470042dacd76c3131bd8
                  • MD5 SHA1 SHA512 TLSH

                  Local State

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{550FE99F-031A-41CC-8408-3248F9D2ED5F}\wv2\EBWebView\Local State
                  • Size 2KB
                  • SHA256 37fa726ecc785a82f0edd6cd6b0245229d3d90f2ea3ff54364d3b76e462ffc97
                  • MD5 SHA1 SHA512 TLSH

                  Local State

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{550FE99F-031A-41CC-8408-3248F9D2ED5F}\wv2\EBWebView\Local State
                  • Size 3KB
                  • SHA256 e6009c0254757873d9e55864ad8001be03645c82e62553f0d221569e98c043e5
                  • MD5 SHA1 SHA512 TLSH

                  Local State

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{550FE99F-031A-41CC-8408-3248F9D2ED5F}\wv2\EBWebView\Local State
                  • Size 16KB
                  • SHA256 0eca78877a3d2cd5c88f46a897c2ae14de368df79dc922156133bb8b43755f66
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  Local State~RFe58339e.TMP

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{550FE99F-031A-41CC-8408-3248F9D2ED5F}\wv2\EBWebView\Local State~RFe58339e.TMP
                  • Size 1KB
                  • SHA256 32b07cba404ac8ec7e4413ced13c58131589b8c28ec95353ec97ef22fb0cb615
                  • MD5 SHA1 SHA512 TLSH

                  memory/3488-98-0x00007FFD28DA0000-0x00007FFD28DA1000-memory.dmp

                  memory/3488-99-0x00007FFD280E0000-0x00007FFD280E1000-memory.dmp

                  memory/4068-88-0x00007FFD28EE0000-0x00007FFD28EE1000-memory.dmp

                  memory/4752-125-0x00007FFD28EE0000-0x00007FFD28EE1000-memory.dmp