Analysis

  • user interaction
    yes
  • max time kernel
    58s
  • max time network
    61s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-de
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-delocale:de-deos:windows11-ltsc_2024-x64systemwindows
  • submitted
    04/11/2026, 23:56

General

  • Target
    yubx-ui.exe
  • Size 34.0MB
  • Sample261104-3y76faet3v
  • SHA256 658a10a37a0792bc215fb4bce3e360af0541c923862429b4ef400ec1aa606a52
  • 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.

  • Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs

    The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 14 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 1 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\yubx-ui.exe
    "C:\Users\Admin\AppData\Local\Temp\yubx-ui.exe"
    1⤵
    • Checks whether UAC is enabled
    • Reads the TCP/IP host and domain name from the registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of WriteProcessMemory
    PID:5788
    • C:\Program Files (x86)\Microsoft\EdgeWebView\Application\122.0.2365.106\msedgewebview2.exe
      "C:\Program Files (x86)\Microsoft\EdgeWebView\Application\122.0.2365.106\msedgewebview2.exe" --embedded-browser-webview=1 --webview-exe-name=yubx-ui.exe --webview-exe-version=2.0.6 --user-data-dir="C:\Users\Admin\AppData\Local\com.YUB-X.ui\EBWebView" --noerrdialogs --embedded-browser-webview-dpi-awareness=2 --edge-webview-custom-scheme --autoplay-policy=no-user-gesture-required --disable-features=msWebOOUI,msPdfOOUI,msSmartScreenProtection --enable-features=MojoIpcz --lang=de-DE --accept-lang=de-DE --mojo-named-platform-channel-pipe=5788.2552.5094517928650165682 /pfhostedapp:7fa1a704c9609223e2a11a6cbce9dbf3899ec4f2
      2⤵
      • Enumerates system info in registry
      • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
      • Suspicious use of WriteProcessMemory
      PID:4584
      • C:\Program Files (x86)\Microsoft\EdgeWebView\Application\122.0.2365.106\msedgewebview2.exe
        "C:\Program Files (x86)\Microsoft\EdgeWebView\Application\122.0.2365.106\msedgewebview2.exe" --type=crashpad-handler --user-data-dir=C:\Users\Admin\AppData\Local\com.YUB-X.ui\EBWebView /prefetch:4 /pfhostedapp:7fa1a704c9609223e2a11a6cbce9dbf3899ec4f2 --monitor-self-annotation=ptype=crashpad-handler --database=C:\Users\Admin\AppData\Local\com.YUB-X.ui\EBWebView\Crashpad --annotation=IsOfficialBuild=1 --annotation=channel= --annotation=chromium-version=122.0.6261.139 "--annotation=exe=C:\Program Files (x86)\Microsoft\EdgeWebView\Application\122.0.2365.106\msedgewebview2.exe" --annotation=plat=Win64 "--annotation=prod=Edge WebView2" --annotation=ver=122.0.2365.106 --initial-client-data=0x184,0x188,0x18c,0x160,0x194,0x7ffca2475fd8,0x7ffca2475fe4,0x7ffca2475ff0
        3⤵
          PID:4956
        • C:\Program Files (x86)\Microsoft\EdgeWebView\Application\122.0.2365.106\msedgewebview2.exe
          "C:\Program Files (x86)\Microsoft\EdgeWebView\Application\122.0.2365.106\msedgewebview2.exe" --type=gpu-process --noerrdialogs --user-data-dir="C:\Users\Admin\AppData\Local\com.YUB-X.ui\EBWebView" --webview-exe-name=yubx-ui.exe --webview-exe-version=2.0.6 --embedded-browser-webview=1 --embedded-browser-webview-dpi-awareness=2 --edge-webview-custom-scheme --no-appcompat-clear --gpu-preferences=WAAAAAAAAADgAAAMAAAAAAAAAAAAAAAAAABgAAAAAAA4AAAAAAAAAAAAAAAEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAGAAAAAAAAAAYAAAAAAAAAAgAAAAAAAAACAAAAAAAAAAIAAAAAAAAAA== --mojo-platform-channel-handle=1752 --field-trial-handle=1756,i,15242018319908223260,14621106876231171068,262144 --enable-features=MojoIpcz --disable-features=msPdfOOUI,msSmartScreenProtection,msWebOOUI --variations-seed-version /prefetch:2 /pfhostedapp:7fa1a704c9609223e2a11a6cbce9dbf3899ec4f2
          3⤵
            PID:4320
          • C:\Program Files (x86)\Microsoft\EdgeWebView\Application\122.0.2365.106\msedgewebview2.exe
            "C:\Program Files (x86)\Microsoft\EdgeWebView\Application\122.0.2365.106\msedgewebview2.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --lang=de --service-sandbox-type=none --noerrdialogs --user-data-dir="C:\Users\Admin\AppData\Local\com.YUB-X.ui\EBWebView" --webview-exe-name=yubx-ui.exe --webview-exe-version=2.0.6 --embedded-browser-webview=1 --embedded-browser-webview-dpi-awareness=2 --edge-webview-custom-scheme --no-appcompat-clear --mojo-platform-channel-handle=2220 --field-trial-handle=1756,i,15242018319908223260,14621106876231171068,262144 --enable-features=MojoIpcz --disable-features=msPdfOOUI,msSmartScreenProtection,msWebOOUI --variations-seed-version /prefetch:3 /pfhostedapp:7fa1a704c9609223e2a11a6cbce9dbf3899ec4f2
            3⤵
              PID:4524
            • C:\Program Files (x86)\Microsoft\EdgeWebView\Application\122.0.2365.106\msedgewebview2.exe
              "C:\Program Files (x86)\Microsoft\EdgeWebView\Application\122.0.2365.106\msedgewebview2.exe" --type=utility --utility-sub-type=storage.mojom.StorageService --lang=de --service-sandbox-type=service --noerrdialogs --user-data-dir="C:\Users\Admin\AppData\Local\com.YUB-X.ui\EBWebView" --webview-exe-name=yubx-ui.exe --webview-exe-version=2.0.6 --embedded-browser-webview=1 --embedded-browser-webview-dpi-awareness=2 --edge-webview-custom-scheme --no-appcompat-clear --mojo-platform-channel-handle=2428 --field-trial-handle=1756,i,15242018319908223260,14621106876231171068,262144 --enable-features=MojoIpcz --disable-features=msPdfOOUI,msSmartScreenProtection,msWebOOUI --variations-seed-version /prefetch:8 /pfhostedapp:7fa1a704c9609223e2a11a6cbce9dbf3899ec4f2
              3⤵
                PID:1640
              • C:\Program Files (x86)\Microsoft\EdgeWebView\Application\122.0.2365.106\msedgewebview2.exe
                "C:\Program Files (x86)\Microsoft\EdgeWebView\Application\122.0.2365.106\msedgewebview2.exe" --type=renderer --noerrdialogs --user-data-dir="C:\Users\Admin\AppData\Local\com.YUB-X.ui\EBWebView" --webview-exe-name=yubx-ui.exe --webview-exe-version=2.0.6 --embedded-browser-webview=1 --embedded-browser-webview-dpi-awareness=2 --edge-webview-custom-scheme --no-appcompat-clear --autoplay-policy=no-user-gesture-required --lang=de --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=de_DE" --mojo-platform-channel-handle=3516 --field-trial-handle=1756,i,15242018319908223260,14621106876231171068,262144 --enable-features=MojoIpcz --disable-features=msPdfOOUI,msSmartScreenProtection,msWebOOUI --variations-seed-version /pfhostedapp:7fa1a704c9609223e2a11a6cbce9dbf3899ec4f2 /prefetch:1
                3⤵
                  PID:5992

            Network

                  MITRE ATT&CK Enterprise v16

                  Replay Monitor

                  Loading Replay Monitor...

                  Downloads

                  2b419360-edf6-4340-b62b-c6b1a4299c7f.tmp

                  • Path C:\Users\Admin\AppData\Local\com.YUB-X.ui\EBWebView\2b419360-edf6-4340-b62b-c6b1a4299c7f.tmp
                  • Size 15KB
                  • SHA256 38ded4d2c6e13c4741efadad7e6dd795980f73a77af746b0c0cade240216332d
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  649f4885-5bf7-4417-b430-caf85ffeaff9.tmp

                  • Path C:\Users\Admin\AppData\Local\com.YUB-X.ui\EBWebView\649f4885-5bf7-4417-b430-caf85ffeaff9.tmp
                  • Size 3KB
                  • SHA256 b96df61ed605ea3ece5508cf3c1fa034d938fb8abc0212c51f3b94ced71eeeb5
                  • MD5 SHA1 SHA512 TLSH

                  8d7a41b4-a4ad-45ab-8fea-e42460e0e4a2.tmp

                  • Path C:\Users\Admin\AppData\Local\com.YUB-X.ui\EBWebView\8d7a41b4-a4ad-45ab-8fea-e42460e0e4a2.tmp
                  • Size 3KB
                  • SHA256 6fe408cd19d6886a31a431d6b87c3fdb738e27861d63bb9963db2e0a58983f08
                  • MD5 SHA1 SHA512 TLSH

                  settings.dat

                  • Path C:\Users\Admin\AppData\Local\com.YUB-X.ui\EBWebView\Crashpad\settings.dat
                  • Size 280B
                  • SHA256 cb5ffe7cefa3721fdc6e95f961648c30cbd7ab0d80e043aa9fcc920601fc7c01
                  • MD5 SHA1 SHA512

                  settings.dat

                  • Path C:\Users\Admin\AppData\Local\com.YUB-X.ui\EBWebView\Crashpad\settings.dat
                  • Size 280B
                  • SHA256 0534fd71b1612c826f1721115186638fe42d7958e5e0f762e99f461dd8b36de2
                  • MD5 SHA1 SHA512 TLSH

                  throttle_store.dat

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

                  55691be0-0b5c-4e5f-b2ec-56fa52ad2840.tmp

                  • Path C:\Users\Admin\AppData\Local\com.YUB-X.ui\EBWebView\Default\55691be0-0b5c-4e5f-b2ec-56fa52ad2840.tmp
                  • Size 5KB
                  • SHA256 50dcbc2efc10e21fa51ce8ab53a790bd3e0fe1513a18226658a0eb826c991392
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  temp-index

                  • Path C:\Users\Admin\AppData\Local\com.YUB-X.ui\EBWebView\Default\Code Cache\js\index-dir\temp-index
                  • Size 192B
                  • SHA256 7dd44426e6745d0b1ee0ea402f4b8787e5d858bd078e2bed8410d5aa8a136280
                  • MD5 SHA1 SHA512 TLSH

                  temp-index

                  • Path C:\Users\Admin\AppData\Local\com.YUB-X.ui\EBWebView\Default\Code Cache\wasm\index-dir\temp-index
                  • Size 48B
                  • SHA256 e4f9fba9f0d564ef5aca3576860bc4cd56e32ab8c276868a7af6263453ab3308
                  • MD5 SHA1 SHA512

                  MANIFEST-000001

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

                  SCT Auditing Pending Reports

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

                  Preferences

                  • Path C:\Users\Admin\AppData\Local\com.YUB-X.ui\EBWebView\Default\Preferences
                  • Size 5KB
                  • SHA256 7f3b3cb17a3462a88e414b2e2029c14599d8278cd665faf27623dabecea48589
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  CURRENT

                  • Path C:\Users\Admin\AppData\Local\com.YUB-X.ui\EBWebView\Default\Sync Data\LevelDB\CURRENT
                  • Size 16B
                  • SHA256 0f1bad70c7bd1e0a69562853ec529355462fcd0423263a3d39d6d0d70b780443
                  • MD5 SHA1 SHA512

                  data_0

                  • Path C:\Users\Admin\AppData\Local\com.YUB-X.ui\EBWebView\GrShaderCache\data_0
                  • Size 8KB
                  • SHA256 d6a5fe39cd672781b256e0e3102f7022635f1d4bb7cfcc90a80fffe4d0f3877e
                  • MD5 SHA1 SHA512 SSDEEP

                  data_1

                  • Path C:\Users\Admin\AppData\Local\com.YUB-X.ui\EBWebView\GrShaderCache\data_1
                  • Size 264KB
                  • SHA256 902f30c1fb0597d0734bc34b979ec5d131f8f39a4b71b338083821216ec8d61b
                  • MD5 SHA1 SHA512 SSDEEP

                  data_2

                  • Path C:\Users\Admin\AppData\Local\com.YUB-X.ui\EBWebView\GrShaderCache\data_2
                  • Size 8KB
                  • SHA256 ec1702806f4cc7c42a82fc2b38e89835fde7c64bb32060e0823c9077ca92efb7
                  • MD5 SHA1 SHA512 SSDEEP

                  data_3

                  • Path C:\Users\Admin\AppData\Local\com.YUB-X.ui\EBWebView\GrShaderCache\data_3
                  • Size 8KB
                  • SHA256 e09f42c398d688dce168570291f1f92d079987deda3099a34adb9e8c0522b30c
                  • MD5 SHA1 SHA512 SSDEEP

                  Local State

                  • Path C:\Users\Admin\AppData\Local\com.YUB-X.ui\EBWebView\Local State
                  • Size 1KB
                  • SHA256 ee3fa1f21b041de042fe1afeaf5d799e68fdec5cf7c8c243527ef7c979f24f88
                  • MD5 SHA1 SHA512 TLSH

                  cfe3b0bd-75ec-479a-a307-654749b39e40.tmp

                  • Path C:\Users\Admin\AppData\Local\com.YUB-X.ui\EBWebView\cfe3b0bd-75ec-479a-a307-654749b39e40.tmp
                  • Size 2KB
                  • SHA256 06314b4322e7c95c83c23a26905003f31a47e85c9b8962d41a48bead830cc205
                  • MD5 SHA1 SHA512 TLSH

                  memory/4320-104-0x00007FFCBB640000-0x00007FFCBB641000-memory.dmp

                  memory/4320-194-0x00000221C3070000-0x00000221C3071000-memory.dmp

                  memory/4320-208-0x00000221C3F40000-0x00000221C3F42000-memory.dmp

                  memory/4320-200-0x00000221C3B10000-0x00000221C3B12000-memory.dmp

                  memory/4320-204-0x00000221C3B10000-0x00000221C3B18000-memory.dmp

                  memory/4320-203-0x00000221C3B20000-0x00000221C3B24000-memory.dmp

                  memory/4320-201-0x00000221C3080000-0x00000221C3084000-memory.dmp

                  memory/4320-198-0x00000221C3B00000-0x00000221C3B02000-memory.dmp

                  memory/4320-196-0x00000221C3070000-0x00000221C3076000-memory.dmp

                  memory/4320-209-0x00000221C3B20000-0x00000221C3B24000-memory.dmp

                  memory/4320-195-0x00000221C3080000-0x00000221C3083000-memory.dmp

                  memory/4320-238-0x00000221BBE80000-0x00000221BBEAA000-memory.dmp

                  memory/4320-206-0x00000221C3B30000-0x00000221C3B32000-memory.dmp

                  memory/5788-237-0x00007FF68E150000-0x00007FF692E34000-memory.dmp

                  memory/5788-222-0x00007FF68FF9F000-0x00007FF690C28000-memory.dmp

                  memory/5788-0-0x00007FFCBD3B0000-0x00007FFCBD3B2000-memory.dmp

                  memory/5788-1-0x00007FF68E150000-0x00007FF692E34000-memory.dmp

                  memory/5788-2-0x00007FF68FF9F000-0x00007FF690C28000-memory.dmp

                  memory/5992-126-0x00007FFCBB640000-0x00007FFCBB641000-memory.dmp