Analysis

  • max time kernel
    149s
  • max time network
    153s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    22/09/2026, 15:05

General

  • Target
    WhiffLess_0.1.2_x64_en-US.msi
  • Size 20.6MB
  • Sample260922-sggxtagh84
  • SHA256 94872e821f0a99829e8ecea26f718655cdfed020ece863ae8fb03abb5fd9ca85
  • 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 14 IoCs
  • Event Triggered Execution: Installer Packages 2 TTPs 1 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 18 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\WhiffLess_0.1.2_x64_en-US.msi
    1⤵
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3024
    • C:\Program Files\WhiffLess\desktop.exe
      "C:\Program Files\WhiffLess\desktop.exe"
      2⤵
      • Executes dropped EXE
      • Checks whether UAC is enabled
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:4236
      • 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=desktop.exe --webview-exe-version=0.1.2 --user-data-dir="C:\Users\Admin\AppData\Local\com.whiffless.desktop\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=4236.3244.4613694570041848327 /pfhostedapp:27a66601451a81a752eb9627f3f3fb75cefdff38
        3⤵
        • Enumerates system info in registry
        • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
        • Suspicious use of WriteProcessMemory
        PID:3520
        • 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.whiffless.desktop\EBWebView /prefetch:4 /pfhostedapp:27a66601451a81a752eb9627f3f3fb75cefdff38 --monitor-self-annotation=ptype=crashpad-handler --database=C:\Users\Admin\AppData\Local\com.whiffless.desktop\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,0x190,0x164,0x198,0x7ffc62325fd8,0x7ffc62325fe4,0x7ffc62325ff0
          4⤵
            PID:456
          • 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.whiffless.desktop\EBWebView" --webview-exe-name=desktop.exe --webview-exe-version=0.1.2 --embedded-browser-webview=1 --embedded-browser-webview-dpi-awareness=2 --edge-webview-custom-scheme --no-appcompat-clear --gpu-preferences=WAAAAAAAAADgAAAMAAAAAAAAAAAAAAAAAABgAAAAAAA4AAAAAAAAAAAAAAAEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAGAAAAAAAAAAYAAAAAAAAAAgAAAAAAAAACAAAAAAAAAAIAAAAAAAAAA== --mojo-platform-channel-handle=1696 --field-trial-handle=1700,i,10427820136289365658,17115073220352382597,262144 --enable-features=MojoIpcz --disable-features=msPdfOOUI,msSmartScreenProtection,msWebOOUI --variations-seed-version /prefetch:2 /pfhostedapp:27a66601451a81a752eb9627f3f3fb75cefdff38
            4⤵
              PID:2292
            • 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.whiffless.desktop\EBWebView" --webview-exe-name=desktop.exe --webview-exe-version=0.1.2 --embedded-browser-webview=1 --embedded-browser-webview-dpi-awareness=2 --edge-webview-custom-scheme --no-appcompat-clear --mojo-platform-channel-handle=1860 --field-trial-handle=1700,i,10427820136289365658,17115073220352382597,262144 --enable-features=MojoIpcz --disable-features=msPdfOOUI,msSmartScreenProtection,msWebOOUI --variations-seed-version /prefetch:3 /pfhostedapp:27a66601451a81a752eb9627f3f3fb75cefdff38
              4⤵
                PID:2780
              • 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.whiffless.desktop\EBWebView" --webview-exe-name=desktop.exe --webview-exe-version=0.1.2 --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=1700,i,10427820136289365658,17115073220352382597,262144 --enable-features=MojoIpcz --disable-features=msPdfOOUI,msSmartScreenProtection,msWebOOUI --variations-seed-version /prefetch:8 /pfhostedapp:27a66601451a81a752eb9627f3f3fb75cefdff38
                4⤵
                  PID:4644
                • 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.whiffless.desktop\EBWebView" --webview-exe-name=desktop.exe --webview-exe-version=0.1.2 --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=3384 --field-trial-handle=1700,i,10427820136289365658,17115073220352382597,262144 --enable-features=MojoIpcz --disable-features=msPdfOOUI,msSmartScreenProtection,msWebOOUI --variations-seed-version /pfhostedapp:27a66601451a81a752eb9627f3f3fb75cefdff38 /prefetch:1
                  4⤵
                    PID:4328
            • 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:4104
              • C:\Windows\syswow64\MsiExec.exe
                C:\Windows\syswow64\MsiExec.exe -Embedding 8ACF15E07D329E927D75DCD4D24EA86B C
                2⤵
                • Loads dropped DLL
                • System Location Discovery: System Language Discovery
                • Suspicious use of SetWindowsHookEx
                PID:1728
              • C:\Windows\system32\srtasks.exe
                C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
                2⤵
                  PID:1440
              • C:\Windows\system32\vssvc.exe
                C:\Windows\system32\vssvc.exe
                1⤵
                • Checks SCSI registry key(s)
                PID:2820

              Network

                    MITRE ATT&CK Enterprise v16

                    Replay Monitor

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                    Downloads

                    e5adad2.rbs

                    • Path C:\Config.Msi\e5adad2.rbs
                    • Size 9KB
                    • SHA256 a68a88dd0b101c4aeff12296fe99648d40ebca730be4d8cfbac92b418999b873
                    • MD5 SHA1 SHA512 SSDEEP TLSH

                    desktop.exe

                    • Path C:\Program Files\WhiffLess\desktop.exe
                    • Size 43.9MB
                    • SHA256 6da1c2b32a64d8009ad4cdfb288a161409b755ae8ae7eaff02d7cddf84d924fe
                    • MD5 SHA1 SHA512 SSDEEP TLSH

                    WhiffLess.lnk

                    • Path C:\ProgramData\Microsoft\Windows\Start Menu\Programs\WhiffLess\WhiffLess.lnk
                    • Size 1KB
                    • SHA256 116ac55158ed4982f6102748be6ad31227fa932de347fa9434fc4614290cf88c
                    • MD5 SHA1 SHA512 TLSH

                    WhiffLess.lnk~RFe5ae8bb.TMP

                    • Path C:\ProgramData\Microsoft\Windows\Start Menu\Programs\WhiffLess\WhiffLess.lnk~RFe5ae8bb.TMP
                    • Size 1KB
                    • SHA256 308ba242e3275c8e14ffaf916c767f3a2baa7c05a29854d64d922f9e46bbc868
                    • MD5 SHA1 SHA512 TLSH

                    MSI181D.tmp

                    • Path C:\Users\Admin\AppData\Local\Temp\MSI181D.tmp
                    • Size 132KB
                    • SHA256 7f47d98ab25cfea9b3a2e898c3376cc9ba1cd893b4948b0c27caa530fd0e34cc
                    • MD5 SHA1 SHA512 SSDEEP TLSH

                    settings.dat

                    • Path C:\Users\Admin\AppData\Local\com.whiffless.desktop\EBWebView\Crashpad\settings.dat
                    • Size 280B
                    • SHA256 0f36118c400089b1545c138db57b505deab5015b527d002677062d9a0a91df3f
                    • MD5 SHA1 SHA512

                    settings.dat

                    • Path C:\Users\Admin\AppData\Local\com.whiffless.desktop\EBWebView\Crashpad\settings.dat
                    • Size 280B
                    • SHA256 4afc00c23215e758760d56a61b84d0f35307238d78825439326b282d25c3ff10
                    • MD5 SHA1 SHA512 TLSH

                    throttle_store.dat

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

                    3eb943c6-c66e-4ebd-a344-57869e878ad1.tmp

                    • Path C:\Users\Admin\AppData\Local\com.whiffless.desktop\EBWebView\Default\3eb943c6-c66e-4ebd-a344-57869e878ad1.tmp
                    • Size 6KB
                    • SHA256 1e0123c5015af48e9a5681084689ba77b9852e565471883c19dd9cf8f6a9856e
                    • MD5 SHA1 SHA512 SSDEEP TLSH

                    data_1

                    • Path C:\Users\Admin\AppData\Local\com.whiffless.desktop\EBWebView\Default\Cache\Cache_Data\data_1
                    • Size 264KB
                    • SHA256 902f30c1fb0597d0734bc34b979ec5d131f8f39a4b71b338083821216ec8d61b
                    • MD5 SHA1 SHA512 SSDEEP

                    the-real-index

                    • Path C:\Users\Admin\AppData\Local\com.whiffless.desktop\EBWebView\Default\Code Cache\js\index-dir\the-real-index
                    • Size 72B
                    • SHA256 2440cbf1efc579a930843e9077008635f5299569d4939d859782dd6341855c3a
                    • MD5 SHA1 SHA512 TLSH

                    the-real-index~RFe5b6ef3.TMP

                    • Path C:\Users\Admin\AppData\Local\com.whiffless.desktop\EBWebView\Default\Code Cache\js\index-dir\the-real-index~RFe5b6ef3.TMP
                    • Size 48B
                    • SHA256 1232b22204fe9ca0c277a9fe29d0da8ba7121479654c0ea49f872d235c4af312
                    • MD5 SHA1 SHA512

                    MANIFEST-000001

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

                    SCT Auditing Pending Reports

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

                    CURRENT

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

                    data_0

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

                    data_2

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

                    data_3

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

                    Local State

                    • Path C:\Users\Admin\AppData\Local\com.whiffless.desktop\EBWebView\Local State
                    • Size 2KB
                    • SHA256 90ff65ecd892107a9dcb020544bd4311ea6cf083c1ce7f86316c011012778e40
                    • MD5 SHA1 SHA512 TLSH

                    Local State

                    • Path C:\Users\Admin\AppData\Local\com.whiffless.desktop\EBWebView\Local State
                    • Size 3KB
                    • SHA256 ea63e2b97c022ef6868e7f5f2ab1c8c4597a18d6966ee554a8f8da6b9e3659da
                    • MD5 SHA1 SHA512 TLSH

                    Local State

                    • Path C:\Users\Admin\AppData\Local\com.whiffless.desktop\EBWebView\Local State
                    • Size 16KB
                    • SHA256 98d83b502265c7dcada0e5b93620e1d44e1d50999d2e4c44a905e61849f80a84
                    • MD5 SHA1 SHA512 SSDEEP TLSH

                    Local State~RFe5b1a2c.TMP

                    • Path C:\Users\Admin\AppData\Local\com.whiffless.desktop\EBWebView\Local State~RFe5b1a2c.TMP
                    • Size 1KB
                    • SHA256 c5377a2b8ededf8f2ad8eafbd6b69b4d0ae20bf9fb5dc911a6df0c6e400333ff
                    • MD5 SHA1 SHA512 TLSH

                    e5adad1.msi

                    • Path C:\Windows\Installer\e5adad1.msi
                    • Size 20.6MB
                    • SHA256 94872e821f0a99829e8ecea26f718655cdfed020ece863ae8fb03abb5fd9ca85
                    • MD5 SHA1 SHA512 SSDEEP TLSH

                    metadata-2

                    • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
                    • Size 26.1MB
                    • SHA256 20aa8614c2d730dbb70519f74a944fcc8c3a8fc0c43610a2027af624cc67f10b
                    • MD5 SHA1 SHA512 SSDEEP TLSH

                    {aa59bd99-1564-463c-846a-8a1f387e5228}_OnDiskSnapshotProp

                    • Path \??\Volume{e42a0d43-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{aa59bd99-1564-463c-846a-8a1f387e5228}_OnDiskSnapshotProp
                    • Size 6KB
                    • SHA256 39adffbddcf5a7744be83a52ea76a5c318ef7a5b5e418010821fb7054bd8e158
                    • MD5 SHA1 SHA512 SSDEEP TLSH

                    memory/2292-70-0x00007FFC84280000-0x00007FFC84281000-memory.dmp

                    memory/4328-155-0x00007FFC84280000-0x00007FFC84281000-memory.dmp