Analysis

  • max time kernel
    148s
  • max time network
    149s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260513-en
  • resource tags

    arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    25/05/2026, 12:19

General

  • Target
    arvest/Astute/img/Microsoft/microsoft_bg.svg
  • Size 1KB
  • Sample260525-pg9faafv7q
  • SHA256 0e88b6fcbb8591edfd28184fa70a04b6dd3af8a14367c628edd7caba32e58c68
  • MD5 SHA1 SHA512 TLSH

Malware Config

Signatures

  • Drops file in Windows directory 5 IoCs
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • System Time Discovery 1 TTPs 1 IoCs

    Adversary may gather the system time and/or time zone settings from a local or remote system.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies Internet Explorer settings 1 TTPs 29 IoCs
  • Modifies data under HKEY_USERS 2 IoCs
  • Modifies registry class 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 3 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 31 IoCs

Processes

  • C:\Program Files\Internet Explorer\iexplore.exe
    "C:\Program Files\Internet Explorer\iexplore.exe" C:\Users\Admin\AppData\Local\Temp\arvest\Astute\img\Microsoft\microsoft_bg.svg
    1⤵
    • Modifies Internet Explorer settings
    • Suspicious use of WriteProcessMemory
    PID:5248
    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" -- "file:///C:/Users/Admin/AppData/Local/Temp/arvest/Astute/img/Microsoft/microsoft_bg.svg"
      2⤵
      • Drops file in Windows directory
      • Enumerates system info in registry
      • Modifies data under HKEY_USERS
      • Modifies registry class
      • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:4924
      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=crashpad-handler "--user-data-dir=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data" /prefetch:4 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad" --annotation=IsOfficialBuild=1 --annotation=channel= --annotation=chromium-version=139.0.7258.155 "--annotation=exe=C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --annotation=plat=Win64 --annotation=prod=Edge --annotation=ver=139.0.3405.125 --initial-client-data=0x2e0,0x2e4,0x2e8,0x2dc,0x2f0,0x7ff96738c188,0x7ff96738c194,0x7ff96738c1a0
        3⤵
          PID:5144
        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --no-pre-read-main-dll --force-high-res-timeticks=disabled --gpu-preferences=SAAAAAAAAADgAAAIAAAAAAAAAAAAAGAAAQAAAAAAAAAEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAQAAAAAAAAABAAAAAAAAAACAAAAAAAAAAIAAAAAAAAAA== --always-read-main-dll --metrics-shmem-handle=1600,i,17025029656808473280,15926991177407840158,262144 --field-trial-handle=2176,i,760207456428769442,8643943453484711535,262144 --variations-seed-version --mojo-platform-channel-handle=2172 /prefetch:2
          3⤵
            PID:1220
          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --no-pre-read-main-dll --force-high-res-timeticks=disabled --always-read-main-dll --metrics-shmem-handle=1844,i,14795800674588204093,2654098635251066094,524288 --field-trial-handle=2176,i,760207456428769442,8643943453484711535,262144 --variations-seed-version --mojo-platform-channel-handle=2212 /prefetch:11
            3⤵
            • System Time Discovery
            PID:1636
          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=storage.mojom.StorageService --lang=en-US --service-sandbox-type=service --force-high-res-timeticks=disabled --always-read-main-dll --metrics-shmem-handle=2408,i,11367644519171116028,11597244985472711914,524288 --field-trial-handle=2176,i,760207456428769442,8643943453484711535,262144 --variations-seed-version --mojo-platform-channel-handle=2580 /prefetch:13
            3⤵
              PID:324
            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --pdf-upsell-enabled --force-high-res-timeticks=disabled --video-capture-use-gpu-memory-buffer --lang=en-US --js-flags=--ms-user-locale= --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=6 --always-read-main-dll --metrics-shmem-handle=3456,i,17570226816288146985,229290058326365609,2097152 --field-trial-handle=2176,i,760207456428769442,8643943453484711535,262144 --variations-seed-version --mojo-platform-channel-handle=3516 /prefetch:1
              3⤵
                PID:1120
              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --pdf-upsell-enabled --force-high-res-timeticks=disabled --video-capture-use-gpu-memory-buffer --lang=en-US --js-flags=--ms-user-locale= --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --always-read-main-dll --metrics-shmem-handle=3484,i,1568208203050005887,17415565964319304877,2097152 --field-trial-handle=2176,i,760207456428769442,8643943453484711535,262144 --variations-seed-version --mojo-platform-channel-handle=3564 /prefetch:1
                3⤵
                  PID:4500
                • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --force-high-res-timeticks=disabled --always-read-main-dll --metrics-shmem-handle=4956,i,4620654835059478014,16595193343057134972,524288 --field-trial-handle=2176,i,760207456428769442,8643943453484711535,262144 --variations-seed-version --mojo-platform-channel-handle=4980 /prefetch:14
                  3⤵
                    PID:2324
                  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=entity_extraction_service.mojom.Extractor --lang=en-US --service-sandbox-type=entity_extraction --onnx-enabled-for-ee --force-high-res-timeticks=disabled --always-read-main-dll --metrics-shmem-handle=4964,i,8825371479710633790,7974699072704080321,524288 --field-trial-handle=2176,i,760207456428769442,8643943453484711535,262144 --variations-seed-version --mojo-platform-channel-handle=5036 /prefetch:14
                    3⤵
                      PID:5136
                    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=chrome.mojom.ProfileImport --lang=en-US --service-sandbox-type=none --force-high-res-timeticks=disabled --always-read-main-dll --metrics-shmem-handle=5868,i,8130145815320146985,15592123435526995082,524288 --field-trial-handle=2176,i,760207456428769442,8643943453484711535,262144 --variations-seed-version --mojo-platform-channel-handle=5876 /prefetch:14
                      3⤵
                      • Suspicious use of WriteProcessMemory
                      PID:5908
                      • C:\Program Files (x86)\Microsoft\Edge\Application\139.0.3405.125\cookie_exporter.exe
                        cookie_exporter.exe --cookie-json=1128
                        4⤵
                          PID:1520
                      • C:\Program Files (x86)\Microsoft\Edge\Application\139.0.3405.125\identity_helper.exe
                        "C:\Program Files (x86)\Microsoft\Edge\Application\139.0.3405.125\identity_helper.exe" --type=utility --utility-sub-type=winrt_app_id.mojom.WinrtAppIdService --lang=en-US --service-sandbox-type=none --force-high-res-timeticks=disabled --always-read-main-dll --metrics-shmem-handle=5856,i,4228458122485999745,15461999443510831122,524288 --field-trial-handle=2176,i,760207456428769442,8643943453484711535,262144 --variations-seed-version --mojo-platform-channel-handle=5884 /prefetch:14
                        3⤵
                          PID:5960
                        • C:\Program Files (x86)\Microsoft\Edge\Application\139.0.3405.125\identity_helper.exe
                          "C:\Program Files (x86)\Microsoft\Edge\Application\139.0.3405.125\identity_helper.exe" --type=utility --utility-sub-type=winrt_app_id.mojom.WinrtAppIdService --lang=en-US --service-sandbox-type=none --force-high-res-timeticks=disabled --always-read-main-dll --metrics-shmem-handle=5856,i,4228458122485999745,15461999443510831122,524288 --field-trial-handle=2176,i,760207456428769442,8643943453484711535,262144 --variations-seed-version --mojo-platform-channel-handle=5884 /prefetch:14
                          3⤵
                            PID:2260
                          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=chrome.mojom.UtilWin --lang=en-US --service-sandbox-type=none --message-loop-type-ui --force-high-res-timeticks=disabled --always-read-main-dll --metrics-shmem-handle=5976,i,3826096460772573732,15637679149671825333,524288 --field-trial-handle=2176,i,760207456428769442,8643943453484711535,262144 --variations-seed-version --mojo-platform-channel-handle=5984 /prefetch:14
                            3⤵
                              PID:2164
                            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=chrome.mojom.UtilWin --lang=en-US --service-sandbox-type=none --message-loop-type-ui --force-high-res-timeticks=disabled --always-read-main-dll --metrics-shmem-handle=5980,i,14851453336475099256,3327863886481534202,524288 --field-trial-handle=2176,i,760207456428769442,8643943453484711535,262144 --variations-seed-version --mojo-platform-channel-handle=6320 /prefetch:14
                              3⤵
                                PID:2608
                              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=chrome.mojom.UtilWin --lang=en-US --service-sandbox-type=none --message-loop-type-ui --force-high-res-timeticks=disabled --always-read-main-dll --metrics-shmem-handle=5972,i,6041466582747043532,5340353107529266651,524288 --field-trial-handle=2176,i,760207456428769442,8643943453484711535,262144 --variations-seed-version --mojo-platform-channel-handle=6228 /prefetch:14
                                3⤵
                                  PID:3440
                                • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=edge_search_indexer.mojom.SearchIndexerInterfaceBroker --lang=en-US --service-sandbox-type=search_indexer --message-loop-type-ui --force-high-res-timeticks=disabled --always-read-main-dll --metrics-shmem-handle=5040,i,16993927961501824158,13214117566203190478,524288 --field-trial-handle=2176,i,760207456428769442,8643943453484711535,262144 --variations-seed-version --mojo-platform-channel-handle=5972 /prefetch:14
                                  3⤵
                                    PID:4100
                                  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=unzip.mojom.Unzipper --lang=en-US --service-sandbox-type=service --force-high-res-timeticks=disabled --always-read-main-dll --metrics-shmem-handle=5200,i,16123195924432612662,17009961684162374243,524288 --field-trial-handle=2176,i,760207456428769442,8643943453484711535,262144 --variations-seed-version --mojo-platform-channel-handle=4964 /prefetch:14
                                    3⤵
                                      PID:5268
                                    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --disable-gpu-sandbox --use-gl=disabled --gpu-vendor-id=5140 --gpu-device-id=140 --gpu-sub-system-id=0 --gpu-revision=0 --gpu-driver-version=10.0.22000.1 --force-high-res-timeticks=disabled --gpu-preferences=SAAAAAAAAADoAAAIAAAAAAAAAAAAAGAAAQAAAAAAAACEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAQAAAAAAAAABAAAAAAAAAACAAAAAAAAAAIAAAAAAAAAA== --always-read-main-dll --metrics-shmem-handle=5920,i,2896484477730898731,555960364733676101,262144 --field-trial-handle=2176,i,760207456428769442,8643943453484711535,262144 --variations-seed-version --mojo-platform-channel-handle=2020 /prefetch:10
                                      3⤵
                                      • Suspicious behavior: EnumeratesProcesses
                                      PID:2200
                                    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=unzip.mojom.Unzipper --lang=en-US --service-sandbox-type=service --force-high-res-timeticks=disabled --always-read-main-dll --metrics-shmem-handle=5736,i,127788862800501873,3713345527657653443,524288 --field-trial-handle=2176,i,760207456428769442,8643943453484711535,262144 --variations-seed-version --mojo-platform-channel-handle=3168 /prefetch:14
                                      3⤵
                                        PID:3844
                                  • C:\Program Files (x86)\Microsoft\Edge\Application\139.0.3405.125\elevation_service.exe
                                    "C:\Program Files (x86)\Microsoft\Edge\Application\139.0.3405.125\elevation_service.exe"
                                    1⤵
                                      PID:2248
                                    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --no-startup-window --win-session-start
                                      1⤵
                                        PID:3836

                                      Network

                                            MITRE ATT&CK Enterprise v16

                                            Replay Monitor

                                            Loading Replay Monitor...

                                            Downloads

                                            994cff2f-8cc1-42ed-96b2-238b42c4fb8d.tmp

                                            • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\994cff2f-8cc1-42ed-96b2-238b42c4fb8d.tmp
                                            • Size 28KB
                                            • SHA256 cd79715912fd7bbe6ef93be9cc7f27b577f9d531b3196152e249c4082cff5cf7
                                            • MD5 SHA1 SHA512 SSDEEP TLSH

                                            settings.dat

                                            • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad\settings.dat
                                            • Size 280B
                                            • SHA256 79054d3106248f0ce580d1442e78fcc5cc48ea2a5eb3b58c6aad98c7106da4b2
                                            • MD5 SHA1 SHA512 TLSH

                                            settings.dat

                                            • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad\settings.dat
                                            • Size 280B
                                            • SHA256 6b09340cb22edbf71e0f90763fd435b35e26e3a84e71f4c033073dc564ceacd0
                                            • MD5 SHA1 SHA512 TLSH

                                            BookmarkMergedSurfaceOrdering

                                            • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\BookmarkMergedSurfaceOrdering
                                            • Size 6B
                                            • SHA256 4489f9e3e454748b3521eb214e0a5694d562cff3d9ff511cb456953c8f534c00
                                            • MD5 SHA1 SHA512

                                            BrowsingTopicsState

                                            • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\BrowsingTopicsState
                                            • Size 649B
                                            • SHA256 6bef045e16e36329ca9e1862f168ed2bf19d805ddcc8a3e63c9f2f5af9be78d0
                                            • MD5 SHA1 SHA512 TLSH

                                            SiteList-Enterprise.json

                                            • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\DualEngine\SiteList-Enterprise.json
                                            • Size 2B
                                            • SHA256 44136fa355b3678a1146ad16f7e8649e94fb4fc21fe77e8310c060f61caaff8a
                                            • MD5 SHA1 SHA512

                                            HubApps

                                            • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\HubApps
                                            • Size 106KB
                                            • SHA256 eb2fd7422436fff93f6be09df3294b26cdb7afd18e6aa94dcdc0f208db78b2ed
                                            • MD5 SHA1 SHA512 SSDEEP TLSH

                                            Network Persistent State

                                            • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Network\Network Persistent State
                                            • Size 1KB
                                            • SHA256 b93d03a05aac81387592beb25c1232aaf59fec181a199ce5359da648cec93e51
                                            • MD5 SHA1 SHA512 TLSH

                                            SCT Auditing Pending Reports

                                            • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Network\SCT Auditing Pending Reports
                                            • Size 2B
                                            • SHA256 4f53cda18c2baa0c0354bb5f9a3ecbe5ed12ab4d8e11ba873c2f11161202b945
                                            • MD5 SHA1 SHA512

                                            Sdch Dictionaries

                                            • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Network\Sdch Dictionaries
                                            • Size 40B
                                            • SHA256 6028bd681dbf11a0a58dde8a0cd884115c04caa59d080ba51bde1b086ce0079d
                                            • MD5 SHA1 SHA512

                                            Preferences

                                            • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Preferences
                                            • Size 15KB
                                            • SHA256 4f1f32db75e9aea408ebbe809e3582993dc7d5b1cb25f53c3772539896b4ad42
                                            • MD5 SHA1 SHA512 SSDEEP TLSH

                                            Preferences

                                            • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Preferences
                                            • Size 15KB
                                            • SHA256 02a6bf1759419022dd2478c7f9a206fae7dae3747ca59165a9dde857d364e3af
                                            • MD5 SHA1 SHA512 SSDEEP TLSH

                                            Secure Preferences

                                            • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Secure Preferences
                                            • Size 36KB
                                            • SHA256 f851dc5a9c79c6bf5ee8b8b9b8b729854804601e2bf121a4be5668eb63fdeca7
                                            • MD5 SHA1 SHA512 SSDEEP TLSH

                                            sync_diagnostic.log

                                            • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Sync Data\Logs\sync_diagnostic.log
                                            • Size 23KB
                                            • SHA256 9448d5993919c519358cfddd02eff332201f97c533e8a842f02647ddb20d91a4
                                            • MD5 SHA1 SHA512 SSDEEP TLSH

                                            Local State

                                            • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Local State
                                            • Size 33KB
                                            • SHA256 94e230335eef0351943840a20f436c662087c9778b6d39da2dd4d2a68687927c
                                            • MD5 SHA1 SHA512 SSDEEP TLSH

                                            Local State

                                            • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Local State
                                            • Size 25KB
                                            • SHA256 648cdf208a8ffeceb0f4e697a34849f418fabca67ed37735da9c0870d55a0bb2
                                            • MD5 SHA1 SHA512 SSDEEP TLSH

                                            Local State

                                            • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Local State
                                            • Size 28KB
                                            • SHA256 016232f66ab90e329ff736cc9c65092c887389e6b34f6239bbf5a211bcf13616
                                            • MD5 SHA1 SHA512 SSDEEP TLSH

                                            Local State

                                            • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Local State
                                            • Size 28KB
                                            • SHA256 db4d90a0b1e85f890a8dd86f7c69c72190bf0ab4d65fb576d3a8873c8d8b8195
                                            • MD5 SHA1 SHA512 SSDEEP TLSH

                                            typosquatting_list.pb

                                            • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Typosquatting\2026.5.21.1\typosquatting_list.pb
                                            • Size 426KB
                                            • SHA256 dd09485bbf5cc88d4b16947759497eaa159173798917953ed192e4f70f7b5d4f
                                            • MD5 SHA1 SHA512 SSDEEP TLSH

                                            metadata.json

                                            • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\component_crx_cache\metadata.json
                                            • Size 2KB
                                            • SHA256 4a4990d9c56f9f0b39ce5966f9c508a404d27298ae1b43a9328add06e261693b
                                            • MD5 SHA1 SHA512 TLSH

                                            manifest.json

                                            • Path C:\Windows\SystemTemp\chrome_Unpacker_BeginUnzipping4924_1042020232\manifest.json
                                            • Size 118B
                                            • SHA256 3c286bc18a9899fc2b55d3c55cd8331e6c64b853519149d854d42958b8209b87
                                            • MD5 SHA1 SHA512 TLSH

                                            data.txt

                                            • Path C:\Windows\SystemTemp\chrome_Unpacker_BeginUnzipping4924_156355070\data.txt
                                            • Size 146KB
                                            • SHA256 4d3b611b8b664c9b2e4503f41eabf3833860e521447c1dc921f0849e0c8633de
                                            • MD5 SHA1 SHA512 SSDEEP TLSH

                                            manifest.json

                                            • Path C:\Windows\SystemTemp\chrome_Unpacker_BeginUnzipping4924_156355070\manifest.json
                                            • Size 52B
                                            • SHA256 98fd5d8bd64136534587ef4cd3f9151defa2a6dae9f0b269a2cbb06433c50336
                                            • MD5 SHA1 SHA512 TLSH