Analysis

  • user interaction
    yes
  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows10-ltsc_2021_x64
  • resource
    win10ltsc2021-20260513-en
  • resource tags

    arch:x64arch:x86image:win10ltsc2021-20260513-enlocale:en-usos:windows10-ltsc_2021-x64systemwindows
  • submitted
    05/07/2026, 15:26

General

  • Target
    Madium-Bootstrapper.exe
  • Size 6.9MB
  • Sample260705-svjcssds3y
  • 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
  • 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:5936
    • 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-{B1E9CE67-41FD-4606-B4D9-5A8CFFAAC41C}\wv2\EBWebView" --noerrdialogs --embedded-browser-webview-dpi-awareness=2 --mojo-named-platform-channel-pipe=5936.1632.13237740029538577711
      2⤵
      • Drops file in Windows directory
      • Enumerates system info in registry
      • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
      • Suspicious use of WriteProcessMemory
      PID:5960
      • 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-{B1E9CE67-41FD-4606-B4D9-5A8CFFAAC41C}\wv2\EBWebView /prefetch:4 --monitor-self-annotation=ptype=crashpad-handler --database=C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{B1E9CE67-41FD-4606-B4D9-5A8CFFAAC41C}\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=0x184,0x188,0x18c,0x160,0x194,0x7ffb7080b078,0x7ffb7080b084,0x7ffb7080b090
        3⤵
          PID:3044
        • 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-{B1E9CE67-41FD-4606-B4D9-5A8CFFAAC41C}\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=1804,i,696770936800890131,17391564048963393897,262144 --variations-seed-version --mojo-platform-channel-handle=1800 /prefetch:2
          3⤵
            PID:3624
          • 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-{B1E9CE67-41FD-4606-B4D9-5A8CFFAAC41C}\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=1884,i,696770936800890131,17391564048963393897,262144 --variations-seed-version --mojo-platform-channel-handle=2112 /prefetch:3
            3⤵
              PID:1756
            • 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-{B1E9CE67-41FD-4606-B4D9-5A8CFFAAC41C}\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=2240,i,696770936800890131,17391564048963393897,262144 --variations-seed-version --mojo-platform-channel-handle=2532 /prefetch:8
              3⤵
                PID:1424
              • 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-{B1E9CE67-41FD-4606-B4D9-5A8CFFAAC41C}\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=3560,i,696770936800890131,17391564048963393897,262144 --variations-seed-version --mojo-platform-channel-handle=3592 /prefetch:1
                3⤵
                  PID:5932
            • C:\Windows\System32\rundll32.exe
              C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
              1⤵
                PID:3748

              Network

                    MITRE ATT&CK Enterprise v16

                    Replay Monitor

                    Loading Replay Monitor...

                    Downloads

                    settings.dat

                    • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{B1E9CE67-41FD-4606-B4D9-5A8CFFAAC41C}\wv2\EBWebView\Crashpad\settings.dat
                    • Size 280B
                    • SHA256 e78b26f250fb565b4955e8afb36991d8ae1cc9518790aa664f7d597fd3d98ad3
                    • MD5 SHA1 SHA512 TLSH

                    settings.dat

                    • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{B1E9CE67-41FD-4606-B4D9-5A8CFFAAC41C}\wv2\EBWebView\Crashpad\settings.dat
                    • Size 280B
                    • SHA256 f86c7139205f5ac881448b5601b48a334c4341649f36b1af83a47649715b445e
                    • MD5 SHA1 SHA512

                    throttle_store.dat

                    • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{B1E9CE67-41FD-4606-B4D9-5A8CFFAAC41C}\wv2\EBWebView\Crashpad\throttle_store.dat
                    • Size 20B
                    • SHA256 41c91a9c93d76295746a149dce7ebb3b9ee2cb551d84365fff108e59a61cc304
                    • MD5 SHA1 SHA512

                    index

                    • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{B1E9CE67-41FD-4606-B4D9-5A8CFFAAC41C}\wv2\EBWebView\Default\Cache\Cache_Data\index
                    • Size 256KB
                    • SHA256 dda5de4872c84a9bdcefeaa014a9cb631c2973625f312d4e9a890f8b9d93ddbb
                    • MD5 SHA1 SHA512 SSDEEP

                    index

                    • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{B1E9CE67-41FD-4606-B4D9-5A8CFFAAC41C}\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-{B1E9CE67-41FD-4606-B4D9-5A8CFFAAC41C}\wv2\EBWebView\Default\Code Cache\wasm\index-dir\the-real-index
                    • Size 48B
                    • SHA256 50e515b7eb28d6e2e293ee1d7ce805d9628c077563eab6704de627af6295a4ae
                    • MD5 SHA1 SHA512

                    index

                    • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{B1E9CE67-41FD-4606-B4D9-5A8CFFAAC41C}\wv2\EBWebView\Default\DawnGraphiteCache\index
                    • Size 256KB
                    • SHA256 b70a405d07c714ace69c95b99d54436ccdd44f199abfe1c0a470eeb7a4ff5684
                    • MD5 SHA1 SHA512 SSDEEP

                    LOG

                    • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{B1E9CE67-41FD-4606-B4D9-5A8CFFAAC41C}\wv2\EBWebView\Default\Extension Rules\LOG
                    • Size 373B
                    • SHA256 910d20927f7d0e07f7fa0d5357d2f1039a95ff80c3cc988cdf72b8db3b0ea1fb
                    • MD5 SHA1 SHA512 TLSH

                    000003.log

                    • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{B1E9CE67-41FD-4606-B4D9-5A8CFFAAC41C}\wv2\EBWebView\Default\Extension Scripts\000003.log
                    • Size 38B
                    • SHA256 1c43a1bda1e458863c46dfae7fb43bfb3e27802169f37320399b1dd799a819ac
                    • MD5 SHA1 SHA512

                    LOG

                    • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{B1E9CE67-41FD-4606-B4D9-5A8CFFAAC41C}\wv2\EBWebView\Default\Extension Scripts\LOG
                    • Size 377B
                    • SHA256 f81dbef31d29d1039ca66cb085692e2888835f4bc9d1b61eb1b6d50ded134a76
                    • MD5 SHA1 SHA512 TLSH

                    000003.log

                    • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{B1E9CE67-41FD-4606-B4D9-5A8CFFAAC41C}\wv2\EBWebView\Default\Extension State\000003.log
                    • Size 114B
                    • SHA256 e2610960c3757d1757f206c7b84378efa22d86dcf161a98096a5f0e56e1a367e
                    • MD5 SHA1 SHA512

                    LOG

                    • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{B1E9CE67-41FD-4606-B4D9-5A8CFFAAC41C}\wv2\EBWebView\Default\Extension State\LOG
                    • Size 373B
                    • SHA256 3e01361c3124c17cf4368ff049b667e154f0a192c65845f874cac0b5ff7befe8
                    • MD5 SHA1 SHA512 TLSH

                    Favicons

                    • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{B1E9CE67-41FD-4606-B4D9-5A8CFFAAC41C}\wv2\EBWebView\Default\Favicons
                    • Size 20KB
                    • SHA256 46b5ecada4edb2585f87953f7847aefc938be2404b9d9455c772b97295b7b1cb
                    • MD5 SHA1 SHA512 SSDEEP TLSH

                    data_1

                    • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{B1E9CE67-41FD-4606-B4D9-5A8CFFAAC41C}\wv2\EBWebView\Default\GPUCache\data_1
                    • Size 264KB
                    • SHA256 b1e963d702392fb7224786e7d56d43973e9b9efd1b89c17814d7c558ffc0cdec
                    • MD5 SHA1 SHA512 SSDEEP

                    index

                    • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{B1E9CE67-41FD-4606-B4D9-5A8CFFAAC41C}\wv2\EBWebView\Default\GPUCache\index
                    • Size 256KB
                    • SHA256 313e72ee6956a46165394f33ec28e6ab6fbd284b181068e54d4250b78a8a2dca
                    • MD5 SHA1 SHA512 SSDEEP

                    History

                    • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{B1E9CE67-41FD-4606-B4D9-5A8CFFAAC41C}\wv2\EBWebView\Default\History
                    • Size 184KB
                    • SHA256 7ac0739f534f89ae63c46cd41f0cffaf0335fe348933e3e3d660044351f2a746
                    • MD5 SHA1 SHA512 SSDEEP TLSH

                    LOG

                    • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{B1E9CE67-41FD-4606-B4D9-5A8CFFAAC41C}\wv2\EBWebView\Default\Local Storage\leveldb\LOG
                    • Size 383B
                    • SHA256 c2a0c8957416a13d27a82004c337f20794fd26c94530d1e4b59e18b117d32fb4
                    • MD5 SHA1 SHA512 TLSH

                    Login Data

                    • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{B1E9CE67-41FD-4606-B4D9-5A8CFFAAC41C}\wv2\EBWebView\Default\Login Data
                    • Size 42KB
                    • SHA256 a5c1d3aad1ea6dfa8484d39b4b6239529889661a0a4d9643175df4d5915c7afa
                    • MD5 SHA1 SHA512 SSDEEP TLSH

                    SCT Auditing Pending Reports

                    • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{B1E9CE67-41FD-4606-B4D9-5A8CFFAAC41C}\wv2\EBWebView\Default\Network\SCT Auditing Pending Reports
                    • Size 2B
                    • SHA256 4f53cda18c2baa0c0354bb5f9a3ecbe5ed12ab4d8e11ba873c2f11161202b945
                    • MD5 SHA1 SHA512

                    CURRENT

                    • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{B1E9CE67-41FD-4606-B4D9-5A8CFFAAC41C}\wv2\EBWebView\Default\Site Characteristics Database\CURRENT
                    • Size 16B
                    • SHA256 0f1bad70c7bd1e0a69562853ec529355462fcd0423263a3d39d6d0d70b780443
                    • MD5 SHA1 SHA512

                    MANIFEST-000001

                    • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{B1E9CE67-41FD-4606-B4D9-5A8CFFAAC41C}\wv2\EBWebView\Default\Site Characteristics Database\MANIFEST-000001
                    • Size 41B
                    • SHA256 f9d31b278e215eb0d0e9cd709edfa037e828f36214ab7906f612160fead4b2b4
                    • MD5 SHA1 SHA512

                    data_0

                    • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{B1E9CE67-41FD-4606-B4D9-5A8CFFAAC41C}\wv2\EBWebView\GrShaderCache\data_0
                    • Size 8KB
                    • SHA256 d6a5fe39cd672781b256e0e3102f7022635f1d4bb7cfcc90a80fffe4d0f3877e
                    • MD5 SHA1 SHA512 SSDEEP

                    data_1

                    • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{B1E9CE67-41FD-4606-B4D9-5A8CFFAAC41C}\wv2\EBWebView\GrShaderCache\data_1
                    • Size 264KB
                    • SHA256 902f30c1fb0597d0734bc34b979ec5d131f8f39a4b71b338083821216ec8d61b
                    • MD5 SHA1 SHA512 SSDEEP

                    data_2

                    • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{B1E9CE67-41FD-4606-B4D9-5A8CFFAAC41C}\wv2\EBWebView\GrShaderCache\data_2
                    • Size 8KB
                    • SHA256 ec1702806f4cc7c42a82fc2b38e89835fde7c64bb32060e0823c9077ca92efb7
                    • MD5 SHA1 SHA512 SSDEEP

                    data_3

                    • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{B1E9CE67-41FD-4606-B4D9-5A8CFFAAC41C}\wv2\EBWebView\GrShaderCache\data_3
                    • Size 8KB
                    • SHA256 e09f42c398d688dce168570291f1f92d079987deda3099a34adb9e8c0522b30c
                    • MD5 SHA1 SHA512 SSDEEP

                    Local State

                    • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{B1E9CE67-41FD-4606-B4D9-5A8CFFAAC41C}\wv2\EBWebView\Local State
                    • Size 1KB
                    • SHA256 7dc58a845540eef137fe108c44e2af7518c8c467bc5bbe0fbbe5665a63fbff4f
                    • MD5 SHA1 SHA512 TLSH

                    Local State

                    • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{B1E9CE67-41FD-4606-B4D9-5A8CFFAAC41C}\wv2\EBWebView\Local State
                    • Size 2KB
                    • SHA256 8591aacfdd45f442862afbfb082e4ba36de97640ecfff1ac06f16c867b0c7153
                    • MD5 SHA1 SHA512 TLSH

                    Local State

                    • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{B1E9CE67-41FD-4606-B4D9-5A8CFFAAC41C}\wv2\EBWebView\Local State
                    • Size 3KB
                    • SHA256 ec086ce5261f634007ec6fda8ea825c8e8113504f61b782eb86b4d6cc9fda85a
                    • MD5 SHA1 SHA512 TLSH

                    Local State

                    • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{B1E9CE67-41FD-4606-B4D9-5A8CFFAAC41C}\wv2\EBWebView\Local State
                    • Size 4KB
                    • SHA256 3f57d81fc136f8ea374ca82be4e1c14907bb308c076756ff981fb5ba636cd642
                    • MD5 SHA1 SHA512 SSDEEP TLSH

                    Local State~RFe589ecb.TMP

                    • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{B1E9CE67-41FD-4606-B4D9-5A8CFFAAC41C}\wv2\EBWebView\Local State~RFe589ecb.TMP
                    • Size 1KB
                    • SHA256 3d6b78b4a03eadc11e3858cc34d81cd9ee22dbef28adea421f259bd9d17e2ab1
                    • MD5 SHA1 SHA512 TLSH

                    memory/1424-97-0x00007FFB8B5B0000-0x00007FFB8B5B1000-memory.dmp

                    memory/1424-98-0x00007FFB8D200000-0x00007FFB8D201000-memory.dmp

                    memory/1424-350-0x000001EBADF80000-0x000001EBADFAF000-memory.dmp

                    memory/3624-82-0x00007FFB8D120000-0x00007FFB8D121000-memory.dmp

                    memory/3624-351-0x000001B2343A0000-0x000001B2343CB000-memory.dmp

                    memory/5932-100-0x00007FFB8D120000-0x00007FFB8D121000-memory.dmp

                    memory/5960-352-0x0000020000000000-0x0000020001000000-memory.dmp