Analysis

  • user interaction
    yes
  • max time kernel
    38s
  • max time network
    43s
  • platform
    windows10-ltsc_2021_x64
  • resource
    win10ltsc2021-20251017-en
  • resource tags

    arch:x64arch:x86image:win10ltsc2021-20251017-enlocale:en-usos:windows10-ltsc_2021-x64system
  • submitted
    08/05/2026, 15:48

General

  • Target
    Madium-Installer.exe
  • Size 13.0MB
  • Sample260508-s85sysaw6y
  • SHA256 2ee90a1ea33cabb04324c4c81fbf5e10324555daa15a5ce1cca057c12e61b096
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Downloads MZ/PE file 2 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Contacts third-party web service commonly abused for C2 1 TTPs 3 IoCs

    Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.

  • 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
  • Kills process with taskkill 1 IoCs
  • Modifies data under HKEY_USERS 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 44 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Madium-Installer.exe
    "C:\Users\Admin\AppData\Local\Temp\Madium-Installer.exe"
    1⤵
    • Downloads MZ/PE file
    • Checks computer location settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:5844
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c cls
      2⤵
        PID:4500
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c taskkill /F /IM Madium.exe /IM Loader.exe >nul 2>&1
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:4284
        • C:\Windows\system32\taskkill.exe
          taskkill /F /IM Madium.exe /IM Loader.exe
          3⤵
          • Kills process with taskkill
          • Suspicious use of AdjustPrivilegeToken
          PID:4492
      • C:\Users\Admin\AppData\Roaming\Madium\Bin\Madium.exe
        "C:\Users\Admin\AppData\Roaming\Madium\Bin\Madium.exe"
        2⤵
        • Executes dropped EXE
        • Checks whether UAC is enabled
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of WriteProcessMemory
        PID:5048
        • 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.exe --webview-exe-version=0.1.0 --user-data-dir="C:\Users\Admin\AppData\Local\com.madium.app\EBWebView" --noerrdialogs --embedded-browser-webview-dpi-awareness=2 --autoplay-policy=no-user-gesture-required --disable-features=msWebOOUI,msPdfOOUI,msSmartScreenProtection --lang=en-US --mojo-named-platform-channel-pipe=5048.4348.17177284696917630747
          3⤵
          • Drops file in Windows directory
          • Enumerates system info in registry
          • Modifies data under HKEY_USERS
          • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
          • Suspicious use of WriteProcessMemory
          PID:4560
          • 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\com.madium.app\EBWebView /prefetch:4 --monitor-self-annotation=ptype=crashpad-handler --database=C:\Users\Admin\AppData\Local\com.madium.app\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,0x160,0x194,0x7ffc31d8b078,0x7ffc31d8b084,0x7ffc31d8b090
            4⤵
              PID:3460
            • 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\com.madium.app\EBWebView" --webview-exe-name=Madium.exe --webview-exe-version=0.1.0 --embedded-browser-webview=1 --embedded-browser-webview-dpi-awareness=2 --gpu-preferences=UAAAAAAAAADgAAAEAAAAAAAAAAAAAAAAAABgAAEAAAAAAAAAAAAAAAAAAAACAAAAAAAAAAAAAAAAAAAAAAAAABAAAAAAAAAAEAAAAAAAAAAIAAAAAAAAAAgAAAAAAAAA --always-read-main-dll --field-trial-handle=1840,i,10930553515278761096,1229168764015858316,262144 --disable-features=msPdfOOUI,msSmartScreenProtection,msWebOOUI --variations-seed-version --mojo-platform-channel-handle=1836 /prefetch:2
              4⤵
                PID:3868
              • 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\com.madium.app\EBWebView" --webview-exe-name=Madium.exe --webview-exe-version=0.1.0 --embedded-browser-webview=1 --embedded-browser-webview-dpi-awareness=2 --always-read-main-dll --field-trial-handle=2076,i,10930553515278761096,1229168764015858316,262144 --disable-features=msPdfOOUI,msSmartScreenProtection,msWebOOUI --variations-seed-version --mojo-platform-channel-handle=2128 /prefetch:3
                4⤵
                  PID:1732
                • 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\com.madium.app\EBWebView" --webview-exe-name=Madium.exe --webview-exe-version=0.1.0 --embedded-browser-webview=1 --embedded-browser-webview-dpi-awareness=2 --always-read-main-dll --field-trial-handle=2368,i,10930553515278761096,1229168764015858316,262144 --disable-features=msPdfOOUI,msSmartScreenProtection,msWebOOUI --variations-seed-version --mojo-platform-channel-handle=2384 /prefetch:8
                  4⤵
                    PID:420
                  • 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\com.madium.app\EBWebView" --webview-exe-name=Madium.exe --webview-exe-version=0.1.0 --embedded-browser-webview=1 --embedded-browser-webview-dpi-awareness=2 --autoplay-policy=no-user-gesture-required --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=3492,i,10930553515278761096,1229168764015858316,262144 --disable-features=msPdfOOUI,msSmartScreenProtection,msWebOOUI --variations-seed-version --mojo-platform-channel-handle=3512 /prefetch:1
                    4⤵
                      PID:2560

              Network

                    MITRE ATT&CK Enterprise v16

                    Replay Monitor

                    Loading Replay Monitor...

                    Downloads

                    settings.dat

                    • Path C:\Users\Admin\AppData\Local\com.madium.app\EBWebView\Crashpad\settings.dat
                    • Size 280B
                    • SHA256 554fc61fe447753abd2bebc37ce29d010a1a8bf948ab2923083bf237c5aaaf08
                    • MD5 SHA1 SHA512

                    settings.dat

                    • Path C:\Users\Admin\AppData\Local\com.madium.app\EBWebView\Crashpad\settings.dat
                    • Size 280B
                    • SHA256 831cf924d784366ab5f320d6283d874678fd21a22fe7b3d28740b9f3881fc2bc
                    • MD5 SHA1 SHA512 TLSH

                    throttle_store.dat

                    • Path C:\Users\Admin\AppData\Local\com.madium.app\EBWebView\Crashpad\throttle_store.dat
                    • Size 20B
                    • SHA256 41c91a9c93d76295746a149dce7ebb3b9ee2cb551d84365fff108e59a61cc304
                    • MD5 SHA1 SHA512

                    the-real-index

                    • Path C:\Users\Admin\AppData\Local\com.madium.app\EBWebView\Default\Code Cache\js\index-dir\the-real-index
                    • Size 48B
                    • SHA256 46409eb9d77ad334da460fad8fdf471d5372e9ebbc48ecddfb52ad2a20872432
                    • MD5 SHA1 SHA512

                    the-real-index

                    • Path C:\Users\Admin\AppData\Local\com.madium.app\EBWebView\Default\Code Cache\js\index-dir\the-real-index
                    • Size 456B
                    • SHA256 7e9a164ce16c5231061e3a9d9dec5e988a7dccb108881995bc97484ac1f835c5
                    • MD5 SHA1 SHA512 TLSH

                    MANIFEST-000001

                    • Path C:\Users\Admin\AppData\Local\com.madium.app\EBWebView\Default\Extension Rules\MANIFEST-000001
                    • Size 41B
                    • SHA256 f9d31b278e215eb0d0e9cd709edfa037e828f36214ab7906f612160fead4b2b4
                    • MD5 SHA1 SHA512

                    Network Persistent State

                    • Path C:\Users\Admin\AppData\Local\com.madium.app\EBWebView\Default\Network\Network Persistent State
                    • Size 568B
                    • SHA256 548099b74334ad38b9c32b80c2eca2a8aa068db541c85d69bc6a1bc52b237e79
                    • MD5 SHA1 SHA512 TLSH

                    Network Persistent State~RFe580990.TMP

                    • Path C:\Users\Admin\AppData\Local\com.madium.app\EBWebView\Default\Network\Network Persistent State~RFe580990.TMP
                    • Size 59B
                    • SHA256 226eec4486509917aa336afebd6ff65777b75b65f1fb06891d2a857a9421a974
                    • MD5 SHA1 SHA512 TLSH

                    SCT Auditing Pending Reports

                    • Path C:\Users\Admin\AppData\Local\com.madium.app\EBWebView\Default\Network\SCT Auditing Pending Reports
                    • Size 2B
                    • SHA256 4f53cda18c2baa0c0354bb5f9a3ecbe5ed12ab4d8e11ba873c2f11161202b945
                    • MD5 SHA1 SHA512

                    Preferences

                    • Path C:\Users\Admin\AppData\Local\com.madium.app\EBWebView\Default\Preferences
                    • Size 6KB
                    • SHA256 97684bdd562f006806eaa7dc51d4c0ce8ce0917acb8738e1f9134ebc83d977c5
                    • MD5 SHA1 SHA512 SSDEEP TLSH

                    Preferences~RFe580961.TMP

                    • Path C:\Users\Admin\AppData\Local\com.madium.app\EBWebView\Default\Preferences~RFe580961.TMP
                    • Size 6KB
                    • SHA256 f1c1619ea973edea8b2fd562f014d5d7d0e6024ddf2dbb922d0f30bbfaca7eaf
                    • MD5 SHA1 SHA512 SSDEEP TLSH

                    CURRENT

                    • Path C:\Users\Admin\AppData\Local\com.madium.app\EBWebView\Default\Site Characteristics Database\CURRENT
                    • Size 16B
                    • SHA256 0f1bad70c7bd1e0a69562853ec529355462fcd0423263a3d39d6d0d70b780443
                    • MD5 SHA1 SHA512

                    data_0

                    • Path C:\Users\Admin\AppData\Local\com.madium.app\EBWebView\GrShaderCache\data_0
                    • Size 8KB
                    • SHA256 d6a5fe39cd672781b256e0e3102f7022635f1d4bb7cfcc90a80fffe4d0f3877e
                    • MD5 SHA1 SHA512 SSDEEP

                    data_2

                    • Path C:\Users\Admin\AppData\Local\com.madium.app\EBWebView\GrShaderCache\data_2
                    • Size 8KB
                    • SHA256 ec1702806f4cc7c42a82fc2b38e89835fde7c64bb32060e0823c9077ca92efb7
                    • MD5 SHA1 SHA512 SSDEEP

                    data_3

                    • Path C:\Users\Admin\AppData\Local\com.madium.app\EBWebView\GrShaderCache\data_3
                    • Size 8KB
                    • SHA256 e09f42c398d688dce168570291f1f92d079987deda3099a34adb9e8c0522b30c
                    • MD5 SHA1 SHA512 SSDEEP

                    data_1

                    • Path C:\Users\Admin\AppData\Local\com.madium.app\EBWebView\GraphiteDawnCache\data_1
                    • Size 264KB
                    • SHA256 902f30c1fb0597d0734bc34b979ec5d131f8f39a4b71b338083821216ec8d61b
                    • MD5 SHA1 SHA512 SSDEEP

                    Local State

                    • Path C:\Users\Admin\AppData\Local\com.madium.app\EBWebView\Local State
                    • Size 1KB
                    • SHA256 14791c907004e405da00c3f7421233c55665a9b71b17608b00cceed5af55d439
                    • MD5 SHA1 SHA512 TLSH

                    Local State

                    • Path C:\Users\Admin\AppData\Local\com.madium.app\EBWebView\Local State
                    • Size 2KB
                    • SHA256 f3f6da617ecd7c0a37f3e2d68e5f8c3157430239734a51f914a333ffd742006d
                    • MD5 SHA1 SHA512 TLSH

                    Local State

                    • Path C:\Users\Admin\AppData\Local\com.madium.app\EBWebView\Local State
                    • Size 3KB
                    • SHA256 a3f332f579decadeb4336804dc805dbd58917816ccb82310a2413e108c24791f
                    • MD5 SHA1 SHA512 TLSH

                    Local State

                    • Path C:\Users\Admin\AppData\Local\com.madium.app\EBWebView\Local State
                    • Size 16KB
                    • SHA256 d134d18a44f09aaf7c6feac3837b22c2e7db10c42e656ff953caaf58b1b5b8c3
                    • MD5 SHA1 SHA512 SSDEEP TLSH

                    Local State~RFe57b352.TMP

                    • Path C:\Users\Admin\AppData\Local\com.madium.app\EBWebView\Local State~RFe57b352.TMP
                    • Size 1KB
                    • SHA256 e1f6cc65c825950fafba873155b7f6471afe59ca5b9d27306cdb5626567cb74f
                    • MD5 SHA1 SHA512 TLSH

                    e68d5f4f-14b5-4e36-802e-a2caf967afc7.tmp

                    • Path C:\Users\Admin\AppData\Local\com.madium.app\EBWebView\e68d5f4f-14b5-4e36-802e-a2caf967afc7.tmp
                    • Size 16KB
                    • SHA256 a12977d25c96868825e1e7a58d5f720b0c283bb217599355f593dad38cbe76a4
                    • MD5 SHA1 SHA512 SSDEEP TLSH

                    Madium.exe

                    • Path C:\Users\Admin\AppData\Roaming\Madium\Bin\Madium.exe
                    • Size 15.0MB
                    • SHA256 edaf6676fe03d0a552f07d7fd438f34d8fe79612c80a365cb42fba679bbea530
                    • MD5 SHA1 SHA512 SSDEEP TLSH

                    memory/420-126-0x00007FFC4F520000-0x00007FFC4F521000-memory.dmp

                    memory/420-125-0x00007FFC4F880000-0x00007FFC4F881000-memory.dmp

                    memory/1732-288-0x000001BD2CA30000-0x000001BD2CA38000-memory.dmp

                    memory/2560-122-0x00007FFC4F4F0000-0x00007FFC4F4F1000-memory.dmp

                    memory/3868-60-0x00007FFC4F4F0000-0x00007FFC4F4F1000-memory.dmp

                    memory/4492-12-0x00000185C9820000-0x00000185C9B73000-memory.dmp

                    memory/4560-458-0x00000186ED170000-0x00000186ED178000-memory.dmp

                    memory/4560-272-0x00000186ED150000-0x00000186ED15C000-memory.dmp

                    memory/4560-271-0x00000186ED110000-0x00000186ED13E000-memory.dmp

                    memory/4560-274-0x00000186F54B0000-0x00000186F54D9000-memory.dmp

                    memory/4560-275-0x00000186F54E0000-0x00000186F551B000-memory.dmp

                    memory/4560-273-0x00000186ED170000-0x00000186ED178000-memory.dmp

                    memory/4560-459-0x00000186F54B0000-0x00000186F54D9000-memory.dmp

                    memory/4560-460-0x00000186F54E0000-0x00000186F551B000-memory.dmp

                    memory/4560-457-0x00000186ED150000-0x00000186ED15C000-memory.dmp

                    memory/4560-456-0x00000186ED110000-0x00000186ED13E000-memory.dmp

                    memory/5048-311-0x0000021D99FC0000-0x0000021D9A313000-memory.dmp

                    memory/5048-318-0x0000021D99FC0000-0x0000021D9A313000-memory.dmp

                    memory/5048-270-0x0000021D99FC0000-0x0000021D9A313000-memory.dmp

                    memory/5844-40-0x0000017896A20000-0x0000017896A2C000-memory.dmp

                    memory/5844-5-0x00007FF65B390000-0x00007FF65C8C6000-memory.dmp

                    memory/5844-2-0x00007FF65B390000-0x00007FF65C8C6000-memory.dmp

                    memory/5844-1-0x00007FFC50E10000-0x00007FFC50E12000-memory.dmp

                    memory/5844-41-0x00007FF65B3E3000-0x00007FF65BBCE000-memory.dmp

                    memory/5844-39-0x0000017896300000-0x0000017896653000-memory.dmp

                    memory/5844-42-0x00007FF65B390000-0x00007FF65C8C6000-memory.dmp

                    memory/5844-0-0x00007FF65B3E3000-0x00007FF65BBCE000-memory.dmp