Analysis

  • user interaction
    yes
  • max time kernel
    148s
  • max time network
    156s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    14/08/2026, 12:18

General

  • Target
    FastClient-Setup.exe
  • Size 27.4MB
  • Sample260814-pgmxaaar4t
  • SHA256 e737435a964d73cc0872560d0354ab4df00a5b3a98424f18f255f1810840769e
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Network Share Discovery 1 TTPs

    Attempt to gather information on host network.

  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 7 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SendNotifyMessage 1 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\FastClient-Setup.exe
    "C:\Users\Admin\AppData\Local\Temp\FastClient-Setup.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:2368
    • C:\Users\Admin\AppData\Local\FastClient\FastClient.exe
      "C:\Users\Admin\AppData\Local\FastClient\FastClient.exe"
      2⤵
      • Executes dropped EXE
      • Checks whether UAC is enabled
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:620
      • 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=FastClient.exe --webview-exe-version=3.0.1 --user-data-dir="C:\Users\Admin\AppData\Local\com.fastclient.launcher\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=en-US --accept-lang=en-US --mojo-named-platform-channel-pipe=620.4472.15510857748265815946 /pfhostedapp:7cacd2fcd29480ce031c4c3b6cfc05724b9c0557
        3⤵
        • Enumerates system info in registry
        • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
        • Suspicious use of WriteProcessMemory
        PID:3188
        • 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.fastclient.launcher\EBWebView /prefetch:4 /pfhostedapp:7cacd2fcd29480ce031c4c3b6cfc05724b9c0557 --monitor-self-annotation=ptype=crashpad-handler --database=C:\Users\Admin\AppData\Local\com.fastclient.launcher\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=0x188,0x18c,0x190,0x164,0x198,0x7ffa39815fd8,0x7ffa39815fe4,0x7ffa39815ff0
          4⤵
            PID:4684
          • 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.fastclient.launcher\EBWebView" --webview-exe-name=FastClient.exe --webview-exe-version=3.0.1 --embedded-browser-webview=1 --embedded-browser-webview-dpi-awareness=2 --edge-webview-custom-scheme --no-appcompat-clear --gpu-preferences=WAAAAAAAAADgAAAMAAAAAAAAAAAAAAAAAABgAAAAAAA4AAAAAAAAAAAAAAAEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAGAAAAAAAAAAYAAAAAAAAAAgAAAAAAAAACAAAAAAAAAAIAAAAAAAAAA== --mojo-platform-channel-handle=1968 --field-trial-handle=1972,i,1723781465710734215,15891328092330732271,262144 --enable-features=MojoIpcz --disable-features=msPdfOOUI,msSmartScreenProtection,msWebOOUI --variations-seed-version /prefetch:2 /pfhostedapp:7cacd2fcd29480ce031c4c3b6cfc05724b9c0557
            4⤵
              PID:4864
            • 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=en-US --service-sandbox-type=none --noerrdialogs --user-data-dir="C:\Users\Admin\AppData\Local\com.fastclient.launcher\EBWebView" --webview-exe-name=FastClient.exe --webview-exe-version=3.0.1 --embedded-browser-webview=1 --embedded-browser-webview-dpi-awareness=2 --edge-webview-custom-scheme --no-appcompat-clear --mojo-platform-channel-handle=2312 --field-trial-handle=1972,i,1723781465710734215,15891328092330732271,262144 --enable-features=MojoIpcz --disable-features=msPdfOOUI,msSmartScreenProtection,msWebOOUI --variations-seed-version /prefetch:3 /pfhostedapp:7cacd2fcd29480ce031c4c3b6cfc05724b9c0557
              4⤵
                PID:5924
              • 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=en-US --service-sandbox-type=service --noerrdialogs --user-data-dir="C:\Users\Admin\AppData\Local\com.fastclient.launcher\EBWebView" --webview-exe-name=FastClient.exe --webview-exe-version=3.0.1 --embedded-browser-webview=1 --embedded-browser-webview-dpi-awareness=2 --edge-webview-custom-scheme --no-appcompat-clear --mojo-platform-channel-handle=2412 --field-trial-handle=1972,i,1723781465710734215,15891328092330732271,262144 --enable-features=MojoIpcz --disable-features=msPdfOOUI,msSmartScreenProtection,msWebOOUI --variations-seed-version /prefetch:8 /pfhostedapp:7cacd2fcd29480ce031c4c3b6cfc05724b9c0557
                4⤵
                  PID:2416
                • 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.fastclient.launcher\EBWebView" --webview-exe-name=FastClient.exe --webview-exe-version=3.0.1 --embedded-browser-webview=1 --embedded-browser-webview-dpi-awareness=2 --edge-webview-custom-scheme --no-appcompat-clear --autoplay-policy=no-user-gesture-required --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=" --mojo-platform-channel-handle=3476 --field-trial-handle=1972,i,1723781465710734215,15891328092330732271,262144 --enable-features=MojoIpcz --disable-features=msPdfOOUI,msSmartScreenProtection,msWebOOUI --variations-seed-version /pfhostedapp:7cacd2fcd29480ce031c4c3b6cfc05724b9c0557 /prefetch:1
                  4⤵
                    PID:4068
                • C:\Program Files (x86)\Common Files\Oracle\Java\javapath\java.exe
                  "java" -version
                  3⤵
                    PID:5976
                  • C:\Program Files\Java\jdk-1.8\bin\java.exe
                    "C:\Program Files\Java\jdk-1.8\bin\java.exe" -version
                    3⤵
                      PID:944
                    • C:\Program Files\Java\jre-1.8\bin\java.exe
                      "C:\Program Files\Java\jre-1.8\bin\java.exe" -version
                      3⤵
                        PID:2900
                  • C:\Windows\system32\svchost.exe
                    C:\Windows\system32\svchost.exe -k GPSvcGroup
                    1⤵
                      PID:3932

                    Network

                          MITRE ATT&CK Enterprise v16

                          Replay Monitor

                          Loading Replay Monitor...

                          Downloads

                          3903daac9bc4a3b7.timestamp

                          • Path C:\ProgramData\Oracle\Java\.oracle_jre_usage\3903daac9bc4a3b7.timestamp
                          • Size 46B
                          • SHA256 d3d4b259426fc5fbf3c1c22e2f862a2b44f7883a407f52245ace0ce4475bf23e
                          • MD5 SHA1 SHA512

                          FastClient.exe

                          • Path C:\Users\Admin\AppData\Local\FastClient\FastClient.exe
                          • Size 37.5MB
                          • SHA256 222e843b930f3af4626d9eb1086fc1ca31dc84393114efd36d302dc9d247f278
                          • MD5 SHA1 SHA512 SSDEEP TLSH

                          System.dll

                          • Path C:\Users\Admin\AppData\Local\Temp\nsd646F.tmp\System.dll
                          • Size 12KB
                          • SHA256 8b4c47c4cf5e76ec57dd5a050d5acd832a0d532ee875d7b44f6cdaf68f90d37c
                          • MD5 SHA1 SHA512 SSDEEP TLSH

                          modern-wizard.bmp

                          • Path C:\Users\Admin\AppData\Local\Temp\nsd646F.tmp\modern-wizard.bmp
                          • Size 25KB
                          • SHA256 3ad2dc318056d0a2024af1804ea741146cfc18cc404649a44610cbf8b2056cf2
                          • MD5 SHA1 SHA512 SSDEEP TLSH

                          nsDialogs.dll

                          • Path C:\Users\Admin\AppData\Local\Temp\nsd646F.tmp\nsDialogs.dll
                          • Size 9KB
                          • SHA256 b1350f487692057c8ffde75dcc55287a52a3272240d4d4912f24464b27551fc0
                          • MD5 SHA1 SHA512 SSDEEP TLSH

                          nsis_tauri_utils.dll

                          • Path C:\Users\Admin\AppData\Local\Temp\nsd646F.tmp\nsis_tauri_utils.dll
                          • Size 33KB
                          • SHA256 5ba143b5db4a87d32d6e7802e033330aae56cbceabe0d1e3ba41948385ad4709
                          • MD5 SHA1 SHA512 SSDEEP TLSH

                          settings.dat

                          • Path C:\Users\Admin\AppData\Local\com.fastclient.launcher\EBWebView\Crashpad\settings.dat
                          • Size 280B
                          • SHA256 ab7d5b69343a2212591ed3660b0d5ead4fd19a827c2b4ca023818d23e6a6e49c
                          • MD5 SHA1 SHA512

                          settings.dat

                          • Path C:\Users\Admin\AppData\Local\com.fastclient.launcher\EBWebView\Crashpad\settings.dat
                          • Size 280B
                          • SHA256 03292642f938e3ece761b15c2242f7cf26eb921e4bb5ad16179b76ad447d6b54
                          • MD5 SHA1 SHA512 TLSH

                          throttle_store.dat

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

                          the-real-index

                          • Path C:\Users\Admin\AppData\Local\com.fastclient.launcher\EBWebView\Default\Code Cache\js\index-dir\the-real-index
                          • Size 264B
                          • SHA256 ec6a02c5bfd73526f01724ae7db7ddb2fb627a7a79d36f47141a704c89e41fa9
                          • MD5 SHA1 SHA512 TLSH

                          the-real-index~RFe5ba3be.TMP

                          • Path C:\Users\Admin\AppData\Local\com.fastclient.launcher\EBWebView\Default\Code Cache\js\index-dir\the-real-index~RFe5ba3be.TMP
                          • Size 48B
                          • SHA256 088252fb9b34fbbd957c2892e31f5a4b1b6d4fdd8323900972746e7005492adb
                          • MD5 SHA1 SHA512

                          SCT Auditing Pending Reports

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

                          CURRENT

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

                          MANIFEST-000001

                          • Path C:\Users\Admin\AppData\Local\com.fastclient.launcher\EBWebView\Default\Site Characteristics Database\MANIFEST-000001
                          • Size 41B
                          • SHA256 f9d31b278e215eb0d0e9cd709edfa037e828f36214ab7906f612160fead4b2b4
                          • MD5 SHA1 SHA512

                          data_0

                          • Path C:\Users\Admin\AppData\Local\com.fastclient.launcher\EBWebView\GraphiteDawnCache\data_0
                          • Size 8KB
                          • SHA256 d6a5fe39cd672781b256e0e3102f7022635f1d4bb7cfcc90a80fffe4d0f3877e
                          • MD5 SHA1 SHA512 SSDEEP

                          data_1

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

                          data_2

                          • Path C:\Users\Admin\AppData\Local\com.fastclient.launcher\EBWebView\GraphiteDawnCache\data_2
                          • Size 8KB
                          • SHA256 ec1702806f4cc7c42a82fc2b38e89835fde7c64bb32060e0823c9077ca92efb7
                          • MD5 SHA1 SHA512 SSDEEP

                          data_3

                          • Path C:\Users\Admin\AppData\Local\com.fastclient.launcher\EBWebView\GraphiteDawnCache\data_3
                          • Size 8KB
                          • SHA256 e09f42c398d688dce168570291f1f92d079987deda3099a34adb9e8c0522b30c
                          • MD5 SHA1 SHA512 SSDEEP

                          Local State

                          • Path C:\Users\Admin\AppData\Local\com.fastclient.launcher\EBWebView\Local State
                          • Size 2KB
                          • SHA256 fc565101b7803c00a1605a4d520fa2fe9db75df3b53a066d83a5e5bb60574131
                          • MD5 SHA1 SHA512 TLSH

                          Local State

                          • Path C:\Users\Admin\AppData\Local\com.fastclient.launcher\EBWebView\Local State
                          • Size 3KB
                          • SHA256 c250df1ad84a0d8c01a360da8427783e91bd32622c86421ab25f1f82d4ce3b7d
                          • MD5 SHA1 SHA512 TLSH

                          Local State

                          • Path C:\Users\Admin\AppData\Local\com.fastclient.launcher\EBWebView\Local State
                          • Size 15KB
                          • SHA256 2dcab80651e9ae61a335e98dea313f722cb35c6173da3f18afb4df4eb2b82b5a
                          • MD5 SHA1 SHA512 SSDEEP TLSH

                          Local State~RFe5b1e71.TMP

                          • Path C:\Users\Admin\AppData\Local\com.fastclient.launcher\EBWebView\Local State~RFe5b1e71.TMP
                          • Size 1KB
                          • SHA256 9a4728f7916994cc88ff10666c2988fa2ffaffc323324aad177cd6097e409914
                          • MD5 SHA1 SHA512 TLSH

                          memory/944-272-0x00000197A7680000-0x00000197A7681000-memory.dmp

                          memory/2900-285-0x000001E16A5E0000-0x000001E16A5E1000-memory.dmp

                          memory/4068-159-0x00007FFA5C220000-0x00007FFA5C221000-memory.dmp

                          memory/4068-245-0x00000270639D0000-0x0000027063A77000-memory.dmp

                          memory/4864-83-0x00007FFA5C220000-0x00007FFA5C221000-memory.dmp

                          memory/4864-230-0x00000200E6910000-0x00000200E69B7000-memory.dmp

                          memory/5976-259-0x0000029B919F0000-0x0000029B919F1000-memory.dmp