Analysis

  • max time kernel
    148s
  • max time network
    151s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    26/10/2026, 15:01

General

  • Target
    ARC Launcher_0.1.0_x64_en-US.msi
  • Size 10.9MB
  • Sample261026-sdwxkaex3x
  • SHA256 4a197714fbb486e97d4cf5d91820d02b5a2c51ffbf3c0cdd4475f5ecca09b8cb
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Enumerates connected drives 3 TTPs 46 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Network Share Discovery 1 TTPs

    Attempt to gather information on host network.

  • Drops file in Program Files directory 2 IoCs
  • Drops file in Windows directory 28 IoCs
  • 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.

  • Checks SCSI registry key(s) 3 TTPs 5 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies data under HKEY_USERS 3 IoCs
  • Modifies registry class 26 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

Processes

  • C:\Windows\system32\msiexec.exe
    msiexec.exe /I "C:\Users\Admin\AppData\Local\Temp\ARC Launcher_0.1.0_x64_en-US.msi"
    1⤵
    • Enumerates connected drives
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1144
    • C:\Program Files\ARC Launcher\arc.exe
      "C:\Program Files\ARC Launcher\arc.exe"
      2⤵
      • Executes dropped EXE
      • Checks whether UAC is enabled
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:1536
      • 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=arc.exe --webview-exe-version=0.1.0 --user-data-dir="C:\Users\Admin\AppData\Local\dev.ofgn.arc\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=1536.3432.17277462844064686103 /pfhostedapp:1fd1ef7ce41c6d24be6dce4cb08940e016540efe
        3⤵
        • Drops file in Windows directory
        • Enumerates system info in registry
        • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
        • Suspicious use of WriteProcessMemory
        PID:5664
        • 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\dev.ofgn.arc\EBWebView /prefetch:4 /pfhostedapp:1fd1ef7ce41c6d24be6dce4cb08940e016540efe --monitor-self-annotation=ptype=crashpad-handler --database=C:\Users\Admin\AppData\Local\dev.ofgn.arc\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,0x160,0x194,0x7ffd413e5fd8,0x7ffd413e5fe4,0x7ffd413e5ff0
          4⤵
            PID:5728
          • 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\dev.ofgn.arc\EBWebView" --webview-exe-name=arc.exe --webview-exe-version=0.1.0 --embedded-browser-webview=1 --embedded-browser-webview-dpi-awareness=2 --edge-webview-custom-scheme --no-appcompat-clear --gpu-preferences=WAAAAAAAAADgAAAMAAAAAAAAAAAAAAAAAABgAAAAAAA4AAAAAAAAAAAAAAAEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAGAAAAAAAAAAYAAAAAAAAAAgAAAAAAAAACAAAAAAAAAAIAAAAAAAAAA== --mojo-platform-channel-handle=1776 --field-trial-handle=1780,i,13819758411984404602,11344588420000487829,262144 --enable-features=MojoIpcz --disable-features=msPdfOOUI,msSmartScreenProtection,msWebOOUI --variations-seed-version /prefetch:2 /pfhostedapp:1fd1ef7ce41c6d24be6dce4cb08940e016540efe
            4⤵
              PID:3124
            • 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\dev.ofgn.arc\EBWebView" --webview-exe-name=arc.exe --webview-exe-version=0.1.0 --embedded-browser-webview=1 --embedded-browser-webview-dpi-awareness=2 --edge-webview-custom-scheme --no-appcompat-clear --mojo-platform-channel-handle=2188 --field-trial-handle=1780,i,13819758411984404602,11344588420000487829,262144 --enable-features=MojoIpcz --disable-features=msPdfOOUI,msSmartScreenProtection,msWebOOUI --variations-seed-version /prefetch:3 /pfhostedapp:1fd1ef7ce41c6d24be6dce4cb08940e016540efe
              4⤵
                PID:1580
              • 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\dev.ofgn.arc\EBWebView" --webview-exe-name=arc.exe --webview-exe-version=0.1.0 --embedded-browser-webview=1 --embedded-browser-webview-dpi-awareness=2 --edge-webview-custom-scheme --no-appcompat-clear --mojo-platform-channel-handle=2284 --field-trial-handle=1780,i,13819758411984404602,11344588420000487829,262144 --enable-features=MojoIpcz --disable-features=msPdfOOUI,msSmartScreenProtection,msWebOOUI --variations-seed-version /prefetch:8 /pfhostedapp:1fd1ef7ce41c6d24be6dce4cb08940e016540efe
                4⤵
                  PID:4444
                • 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\dev.ofgn.arc\EBWebView" --webview-exe-name=arc.exe --webview-exe-version=0.1.0 --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=3336 --field-trial-handle=1780,i,13819758411984404602,11344588420000487829,262144 --enable-features=MojoIpcz --disable-features=msPdfOOUI,msSmartScreenProtection,msWebOOUI --variations-seed-version /pfhostedapp:1fd1ef7ce41c6d24be6dce4cb08940e016540efe /prefetch:1
                  4⤵
                    PID:2924
                  • 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=unzip.mojom.Unzipper --lang=en-US --service-sandbox-type=service --noerrdialogs --user-data-dir="C:\Users\Admin\AppData\Local\dev.ofgn.arc\EBWebView" --webview-exe-name=arc.exe --webview-exe-version=0.1.0 --embedded-browser-webview=1 --embedded-browser-webview-dpi-awareness=2 --edge-webview-custom-scheme --no-appcompat-clear --mojo-platform-channel-handle=4476 --field-trial-handle=1780,i,13819758411984404602,11344588420000487829,262144 --enable-features=MojoIpcz --disable-features=msPdfOOUI,msSmartScreenProtection,msWebOOUI --variations-seed-version /prefetch:8 /pfhostedapp:1fd1ef7ce41c6d24be6dce4cb08940e016540efe
                    4⤵
                      PID:3252
              • C:\Windows\system32\msiexec.exe
                C:\Windows\system32\msiexec.exe /V
                1⤵
                • Enumerates connected drives
                • Drops file in Program Files directory
                • Drops file in Windows directory
                • Modifies data under HKEY_USERS
                • Modifies registry class
                • Suspicious behavior: EnumeratesProcesses
                • Suspicious use of AdjustPrivilegeToken
                • Suspicious use of SetWindowsHookEx
                • Suspicious use of WriteProcessMemory
                PID:4964
                • C:\Windows\syswow64\MsiExec.exe
                  C:\Windows\syswow64\MsiExec.exe -Embedding A14673CD666F7EAD55F3EBEE9054FC80 C
                  2⤵
                  • Loads dropped DLL
                  • System Location Discovery: System Language Discovery
                  • Suspicious use of SetWindowsHookEx
                  PID:2428
                • C:\Windows\system32\srtasks.exe
                  C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
                  2⤵
                    PID:1592
                • C:\Windows\system32\vssvc.exe
                  C:\Windows\system32\vssvc.exe
                  1⤵
                  • Checks SCSI registry key(s)
                  PID:2520

                Network

                      MITRE ATT&CK Enterprise v16

                      Replay Monitor

                      Loading Replay Monitor...

                      Downloads

                      e59b9e1.rbs

                      • Path C:\Config.Msi\e59b9e1.rbs
                      • Size 9KB
                      • SHA256 e4bf19b2ae8f0948dd78b95af0f78547eddfba6d0756155ee5f3800629b72f96
                      • MD5 SHA1 SHA512 SSDEEP TLSH

                      arc.exe

                      • Path C:\Program Files\ARC Launcher\arc.exe
                      • Size 19.1MB
                      • SHA256 8986f289952661ae8a5d7b731ad947e1964c25122441baf2dbbd05123c1cef3a
                      • MD5 SHA1 SHA512 SSDEEP TLSH

                      ARC Launcher.lnk

                      • Path C:\ProgramData\Microsoft\Windows\Start Menu\Programs\ARC Launcher\ARC Launcher.lnk
                      • Size 1KB
                      • SHA256 4b6920a14ee72aa5bf65050a340b750fda0eebdeb0fb5af9e3ee6a19660f32f3
                      • MD5 SHA1 SHA512 TLSH

                      ~RC Launcher.tmp

                      • Path C:\ProgramData\Microsoft\Windows\Start Menu\Programs\ARC Launcher\~RC Launcher.tmp
                      • Size 1KB
                      • SHA256 4a04c5237a6af26a963ea7cf821413f76f221cc25272e947c91665c7f7b0aab7
                      • MD5 SHA1 SHA512 TLSH

                      MSI617F.tmp

                      • Path C:\Users\Admin\AppData\Local\Temp\MSI617F.tmp
                      • Size 132KB
                      • SHA256 7f47d98ab25cfea9b3a2e898c3376cc9ba1cd893b4948b0c27caa530fd0e34cc
                      • MD5 SHA1 SHA512 SSDEEP TLSH

                      0af0c7d1-91a9-4aea-a56d-1e328a9c8e1d.tmp

                      • Path C:\Users\Admin\AppData\Local\dev.ofgn.arc\EBWebView\0af0c7d1-91a9-4aea-a56d-1e328a9c8e1d.tmp
                      • Size 15KB
                      • SHA256 bfa9a646564b82cfcb65188f4387c6d709c0790b9686330fd1d4eb89b9160337
                      • MD5 SHA1 SHA512 SSDEEP TLSH

                      65f93518-67be-4ae9-bc41-8d5303a1006a.tmp

                      • Path C:\Users\Admin\AppData\Local\dev.ofgn.arc\EBWebView\65f93518-67be-4ae9-bc41-8d5303a1006a.tmp
                      • Size 2KB
                      • SHA256 46154ed81631b042a84f1f5b3afc492a5d622232e0488cc122fef5a7ce04689b
                      • MD5 SHA1 SHA512 TLSH

                      79deb6ad-f01e-4848-840b-c2cbfcbc9084.tmp

                      • Path C:\Users\Admin\AppData\Local\dev.ofgn.arc\EBWebView\79deb6ad-f01e-4848-840b-c2cbfcbc9084.tmp
                      • Size 3KB
                      • SHA256 e2ad2a8e0853f1a231d2bf6f1f9cb204f43d222f8624d4787bf86568dcd32f83
                      • MD5 SHA1 SHA512 TLSH

                      settings.dat

                      • Path C:\Users\Admin\AppData\Local\dev.ofgn.arc\EBWebView\Crashpad\settings.dat
                      • Size 280B
                      • SHA256 d55b8acd4ccc125fd028e9d09fef5b0ddf9a7d318595d4a66a8843fd768c6fd3
                      • MD5 SHA1 SHA512

                      settings.dat

                      • Path C:\Users\Admin\AppData\Local\dev.ofgn.arc\EBWebView\Crashpad\settings.dat
                      • Size 280B
                      • SHA256 5c55d31db675327ac5ff40649ac7972886c0cb0a77ff1ffc6f971159e0ab9d1e
                      • MD5 SHA1 SHA512 TLSH

                      throttle_store.dat

                      • Path C:\Users\Admin\AppData\Local\dev.ofgn.arc\EBWebView\Crashpad\throttle_store.dat
                      • Size 20B
                      • SHA256 41c91a9c93d76295746a149dce7ebb3b9ee2cb551d84365fff108e59a61cc304
                      • MD5 SHA1 SHA512

                      3982b448-b1e4-4f14-ba43-ac79144cdc3e.tmp

                      • Path C:\Users\Admin\AppData\Local\dev.ofgn.arc\EBWebView\Default\3982b448-b1e4-4f14-ba43-ac79144cdc3e.tmp
                      • Size 6KB
                      • SHA256 9a7b728525c6c2e181bf7c9d3637a8850979bc1958f14696590222b83873bc2b
                      • MD5 SHA1 SHA512 SSDEEP TLSH

                      temp-index

                      • Path C:\Users\Admin\AppData\Local\dev.ofgn.arc\EBWebView\Default\Code Cache\js\index-dir\temp-index
                      • Size 72B
                      • SHA256 bc5bad7f9d1e5c968cbad676c545abf690ffde2abfd2d35ebb9cf67ec6c15978
                      • MD5 SHA1 SHA512 TLSH

                      the-real-index

                      • Path C:\Users\Admin\AppData\Local\dev.ofgn.arc\EBWebView\Default\Code Cache\js\index-dir\the-real-index
                      • Size 48B
                      • SHA256 a28832be9cfa2aa15264ac8891f90967326f954a22cde8c69907eef6d7dee90b
                      • MD5 SHA1 SHA512

                      83133502-8ea7-47e4-bacd-b9b97a01c4a5.tmp

                      • Path C:\Users\Admin\AppData\Local\dev.ofgn.arc\EBWebView\Default\Network\83133502-8ea7-47e4-bacd-b9b97a01c4a5.tmp
                      • Size 821B
                      • SHA256 6de89c02ccc9070c798c1566bed82b9a2b04f00f14fe608af10dff55485fca92
                      • MD5 SHA1 SHA512 TLSH

                      Network Persistent State

                      • Path C:\Users\Admin\AppData\Local\dev.ofgn.arc\EBWebView\Default\Network\Network Persistent State
                      • Size 59B
                      • SHA256 226eec4486509917aa336afebd6ff65777b75b65f1fb06891d2a857a9421a974
                      • MD5 SHA1 SHA512 TLSH

                      SCT Auditing Pending Reports

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

                      CURRENT

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

                      MANIFEST-000001

                      • Path C:\Users\Admin\AppData\Local\dev.ofgn.arc\EBWebView\Default\Sync Data\LevelDB\MANIFEST-000001
                      • Size 41B
                      • SHA256 f9d31b278e215eb0d0e9cd709edfa037e828f36214ab7906f612160fead4b2b4
                      • MD5 SHA1 SHA512

                      data_0

                      • Path C:\Users\Admin\AppData\Local\dev.ofgn.arc\EBWebView\GrShaderCache\data_0
                      • Size 8KB
                      • SHA256 d6a5fe39cd672781b256e0e3102f7022635f1d4bb7cfcc90a80fffe4d0f3877e
                      • MD5 SHA1 SHA512 SSDEEP

                      data_2

                      • Path C:\Users\Admin\AppData\Local\dev.ofgn.arc\EBWebView\GrShaderCache\data_2
                      • Size 8KB
                      • SHA256 ec1702806f4cc7c42a82fc2b38e89835fde7c64bb32060e0823c9077ca92efb7
                      • MD5 SHA1 SHA512 SSDEEP

                      data_3

                      • Path C:\Users\Admin\AppData\Local\dev.ofgn.arc\EBWebView\GrShaderCache\data_3
                      • Size 8KB
                      • SHA256 e09f42c398d688dce168570291f1f92d079987deda3099a34adb9e8c0522b30c
                      • MD5 SHA1 SHA512 SSDEEP

                      Local State

                      • Path C:\Users\Admin\AppData\Local\dev.ofgn.arc\EBWebView\Local State
                      • Size 1KB
                      • SHA256 eda26bde51da9b292edff6d20b5fcd47c119a89bb1042e2bd5c6cad5a5615251
                      • MD5 SHA1 SHA512 TLSH

                      e59b9e2.msi

                      • Path C:\Windows\Installer\e59b9e2.msi
                      • Size 10.9MB
                      • SHA256 4a197714fbb486e97d4cf5d91820d02b5a2c51ffbf3c0cdd4475f5ecca09b8cb
                      • MD5 SHA1 SHA512 SSDEEP TLSH

                      manifest.json

                      • Path C:\Windows\SystemTemp\chrome_Unpacker_BeginUnzipping5664_820696814\manifest.json
                      • Size 116B
                      • SHA256 181a1631374b5ac1fff89559f7e23498ad9ee4796885d7b956d5e7d5f9c3f8c7
                      • MD5 SHA1 SHA512 TLSH

                      metadata-2

                      • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
                      • Size 26.1MB
                      • SHA256 975ff62569618ada2b1458bfc041aa3fc2ede6c059f625e9bfb4b311e260acf1
                      • MD5 SHA1 SHA512 SSDEEP TLSH

                      {6e340a6f-51fa-4e1f-af75-7caded4d6425}_OnDiskSnapshotProp

                      • Path \??\Volume{24fec12f-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{6e340a6f-51fa-4e1f-af75-7caded4d6425}_OnDiskSnapshotProp
                      • Size 6KB
                      • SHA256 f0cdb2e8c7dc94f7796ccd491354a185212220206c0a6417e73448f321edf1bd
                      • MD5 SHA1 SHA512 SSDEEP TLSH

                      memory/2924-245-0x0000016A1F7D0000-0x0000016A1FB4C000-memory.dmp

                      memory/2924-81-0x00007FFD63460000-0x00007FFD63461000-memory.dmp

                      memory/3124-244-0x000002B59E710000-0x000002B59EA8C000-memory.dmp

                      memory/3124-70-0x00007FFD63460000-0x00007FFD63461000-memory.dmp

                      memory/3252-309-0x00007FFD63950000-0x00007FFD63951000-memory.dmp

                      memory/3252-308-0x00007FFD642F0000-0x00007FFD642F1000-memory.dmp