Analysis

  • user interaction
    yes
  • max time kernel
    42s
  • max time network
    45s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260911-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    02/10/2026, 11:07

General

  • Target
    https://www.espacebusiness.com/fr/18053/lettre.php
  • Sample261002-m74avayblb
Score
3/10

Malware Config

Signatures

  • 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.

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies registry class 1 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 4 IoCs
  • Suspicious use of FindShellTrayWindow 34 IoCs
  • Suspicious use of SendNotifyMessage 32 IoCs
  • Suspicious use of WriteProcessMemory 27 IoCs

Processes

  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --start-maximized --disable-default-apps --disable-component-update --simulate-outdated-no-au='Tue, 31 Dec 2099 23:59:59 GMT' --single-argument https://www.espacebusiness.com/fr/18053/lettre.php
    1⤵
    • Checks processor information in registry
    • Enumerates system info in registry
    • Modifies registry class
    • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:2240
    • 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=0x238,0x23c,0x240,0x234,0x2b4,0x7fff9750c188,0x7fff9750c194,0x7fff9750c1a0
      2⤵
        PID:3024
      • 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=1960,i,8117503972590418262,6052073259760922880,524288 --field-trial-handle=2348,i,16983736349463580766,4766451816635175608,262144 --variations-seed-version --mojo-platform-channel-handle=2380 /prefetch:3
        2⤵
        • System Time Discovery
        PID:3608
      • 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=1840,i,7843524740291842923,12601995908861706286,262144 --field-trial-handle=2348,i,16983736349463580766,4766451816635175608,262144 --variations-seed-version --mojo-platform-channel-handle=2344 /prefetch:2
        2⤵
          PID:4252
        • 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=2352,i,3113765351490189977,2153842307327852132,524288 --field-trial-handle=2348,i,16983736349463580766,4766451816635175608,262144 --variations-seed-version --mojo-platform-channel-handle=2804 /prefetch:8
          2⤵
            PID:3852
          • 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=3436,i,4508317183616684880,15194026790646540206,2097152 --field-trial-handle=2348,i,16983736349463580766,4766451816635175608,262144 --variations-seed-version --mojo-platform-channel-handle=3480 /prefetch:1
            2⤵
              PID:4824
            • 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=3452,i,6375937824954770027,15755067637614546398,2097152 --field-trial-handle=2348,i,16983736349463580766,4766451816635175608,262144 --variations-seed-version --mojo-platform-channel-handle=3496 /prefetch:1
              2⤵
                PID:2604
              • 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=7 --always-read-main-dll --metrics-shmem-handle=4232,i,17720670968461918985,3721200314531066109,2097152 --field-trial-handle=2348,i,16983736349463580766,4766451816635175608,262144 --variations-seed-version --mojo-platform-channel-handle=4280 /prefetch:1
                2⤵
                  PID:3296
                • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --extension-process --renderer-sub-type=extension --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=8 --always-read-main-dll --metrics-shmem-handle=4256,i,17416291023456319914,12764524628675336762,2097152 --field-trial-handle=2348,i,16983736349463580766,4766451816635175608,262144 --variations-seed-version --mojo-platform-channel-handle=4324 /prefetch:2
                  2⤵
                    PID:3984
                  • 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=3512,i,8694464589435367999,9486584489585848823,524288 --field-trial-handle=2348,i,16983736349463580766,4766451816635175608,262144 --variations-seed-version --mojo-platform-channel-handle=5144 /prefetch:8
                    2⤵
                      PID:3768
                    • 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=3876,i,9830055217792473420,2728978276157684275,524288 --field-trial-handle=2348,i,16983736349463580766,4766451816635175608,262144 --variations-seed-version --mojo-platform-channel-handle=5172 /prefetch:8
                      2⤵
                        PID:2332
                      • 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,11240584622899223640,3979480857968496547,524288 --field-trial-handle=2348,i,16983736349463580766,4766451816635175608,262144 --variations-seed-version --mojo-platform-channel-handle=5760 /prefetch:8
                        2⤵
                          PID:2064
                        • 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,11240584622899223640,3979480857968496547,524288 --field-trial-handle=2348,i,16983736349463580766,4766451816635175608,262144 --variations-seed-version --mojo-platform-channel-handle=5760 /prefetch:8
                          2⤵
                            PID:5068
                          • 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=4284,i,12537846105660167513,11781706180358542979,524288 --field-trial-handle=2348,i,16983736349463580766,4766451816635175608,262144 --variations-seed-version --mojo-platform-channel-handle=5760 /prefetch:8
                            2⤵
                              PID:3364
                            • 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=5108,i,56449251202205135,12087347346621427932,524288 --field-trial-handle=2348,i,16983736349463580766,4766451816635175608,262144 --variations-seed-version --mojo-platform-channel-handle=6300 /prefetch:8
                              2⤵
                                PID:4996
                              • 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=4336,i,769019877859983977,5342564285228211866,524288 --field-trial-handle=2348,i,16983736349463580766,4766451816635175608,262144 --variations-seed-version --mojo-platform-channel-handle=4388 /prefetch:8
                                2⤵
                                  PID:4632
                              • 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:2184

                                Network

                                      MITRE ATT&CK Enterprise v16

                                      Replay Monitor

                                      Loading Replay Monitor...

                                      Downloads

                                      3371ff5e-7dc3-437e-bf87-5955ae1f9cd7.tmp

                                      • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\3371ff5e-7dc3-437e-bf87-5955ae1f9cd7.tmp
                                      • Size 18KB
                                      • SHA256 1fda7f8098db9f3752d5e682b972e9b7066400f2bd2832e22e5b0b5813d5df7d
                                      • MD5 SHA1 SHA512 SSDEEP TLSH

                                      439d33d6-fca4-4816-a634-941c58bd5175.tmp

                                      • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\439d33d6-fca4-4816-a634-941c58bd5175.tmp
                                      • Size 8KB
                                      • SHA256 8a1f68662841a50e5887a06ac20f5664e731db39a16608939d4f6b179e37e9ef
                                      • MD5 SHA1 SHA512 SSDEEP TLSH

                                      settings.dat

                                      • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad\settings.dat
                                      • Size 280B
                                      • SHA256 c904cde2439d0f658b6928376273908e18874923ffb5ab0253d91ef97d247274
                                      • MD5 SHA1 SHA512 TLSH

                                      settings.dat

                                      • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad\settings.dat
                                      • Size 280B
                                      • SHA256 ad9341a3ad2b263d2be4ffd8a97b10f49a2c167d02a5b66182496dee5e8cf827
                                      • MD5 SHA1 SHA512 TLSH

                                      2191f6f8-13b5-45dc-b604-c4cb41d55136.tmp

                                      • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\2191f6f8-13b5-45dc-b604-c4cb41d55136.tmp
                                      • Size 9KB
                                      • SHA256 71b4ca37c938da8bc5f2d735e0b056bc820366f6086b09b25efd78618184f9dc
                                      • MD5 SHA1 SHA512 SSDEEP TLSH

                                      386d9dda-f726-4d81-a1bc-99b64299ab3a.tmp

                                      • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\386d9dda-f726-4d81-a1bc-99b64299ab3a.tmp
                                      • Size 10KB
                                      • SHA256 07d2b4a3b9fb7d24117fd23a783eb8c259212f21588acb3407d5cd218d015e2d
                                      • MD5 SHA1 SHA512 SSDEEP TLSH

                                      797dde0a-7f07-42cf-b193-f588cb61589d.tmp

                                      • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\797dde0a-7f07-42cf-b193-f588cb61589d.tmp
                                      • Size 10KB
                                      • SHA256 2c5c39c70652f6b564114248969d13c11bd67a8d637dcd8befdf61ad093a553c
                                      • MD5 SHA1 SHA512 SSDEEP TLSH

                                      943739d8-c032-426b-87a4-7113af68b79a.tmp

                                      • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\943739d8-c032-426b-87a4-7113af68b79a.tmp
                                      • Size 70KB
                                      • SHA256 31a226211c491e1b0832d4cd3cf34d97165e24a7ce4ec655259cd188f3a2bd88
                                      • MD5 SHA1 SHA512 SSDEEP TLSH

                                      temp-index

                                      • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Code Cache\js\index-dir\temp-index
                                      • Size 3KB
                                      • SHA256 6cc94fe7fa330902a0d9d851c8281289f3b4ba756d0dd444ac980551bae5debc
                                      • MD5 SHA1 SHA512 TLSH

                                      the-real-index

                                      • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Code Cache\js\index-dir\the-real-index
                                      • Size 3KB
                                      • SHA256 fb6427de2b3be9feca6dacbef4bebee854877084659238b9e43cae97912b4182
                                      • MD5 SHA1 SHA512 TLSH

                                      2203c110-6bc0-4317-bc42-61cb369c65fb.tmp

                                      • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\DualEngine\2203c110-6bc0-4317-bc42-61cb369c65fb.tmp
                                      • Size 2B
                                      • SHA256 44136fa355b3678a1146ad16f7e8649e94fb4fc21fe77e8310c060f61caaff8a
                                      • MD5 SHA1 SHA512

                                      CURRENT

                                      • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\EdgeCoupons\coupons_data.db\CURRENT
                                      • Size 16B
                                      • SHA256 0f1bad70c7bd1e0a69562853ec529355462fcd0423263a3d39d6d0d70b780443
                                      • MD5 SHA1 SHA512

                                      0f2d063c-005a-45e3-87cc-a73fc80becbe.tmp

                                      • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Network\0f2d063c-005a-45e3-87cc-a73fc80becbe.tmp
                                      • Size 111B
                                      • SHA256 5dfc321417fc31359f23320ea68014ebfd793c5bbed55f77dab4180bbd4a2026
                                      • MD5 SHA1 SHA512 TLSH

                                      8b02a1c4-afd4-4756-a341-22219c346c06.tmp

                                      • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Network\8b02a1c4-afd4-4756-a341-22219c346c06.tmp
                                      • Size 2B
                                      • SHA256 4f53cda18c2baa0c0354bb5f9a3ecbe5ed12ab4d8e11ba873c2f11161202b945
                                      • MD5 SHA1 SHA512

                                      sync_diagnostic.log

                                      • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Sync Data\Logs\sync_diagnostic.log
                                      • Size 4KB
                                      • SHA256 ae1c0e0781a54c362e85631be0d7279e1836490df039fd7ec44266b458564c2d
                                      • MD5 SHA1 SHA512 SSDEEP TLSH

                                      a002d0ab-a0eb-4b01-8dee-9e3319ba93c5.tmp

                                      • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\a002d0ab-a0eb-4b01-8dee-9e3319ba93c5.tmp
                                      • Size 27KB
                                      • SHA256 9a0e215ec9ef6409b6e831d739202cec8b6e03b6115b9106e27bb923f668bbaa
                                      • MD5 SHA1 SHA512 SSDEEP TLSH

                                      d5067c81-b313-4792-8068-e4655f6d5b02.tmp

                                      • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\d5067c81-b313-4792-8068-e4655f6d5b02.tmp
                                      • Size 8KB
                                      • SHA256 26361aaea2f0633d9dc994ef4599c6f91f02724384eb4062db3d736f1f03125c
                                      • MD5 SHA1 SHA512 SSDEEP TLSH

                                      d55d2320-8e7d-4540-b7aa-bc4e533d3e4f.tmp

                                      • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\extensions_crx_cache\d55d2320-8e7d-4540-b7aa-bc4e533d3e4f.tmp
                                      • Size 13B
                                      • SHA256 2771d13c637c267132afff9db67537bef95708534b79ae8d954254c4e64e4e0f
                                      • MD5 SHA1 SHA512

                                      fa95fd75-c482-4ac6-80ab-c4bff4add0c9.tmp

                                      • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\fa95fd75-c482-4ac6-80ab-c4bff4add0c9.tmp
                                      • Size 18KB
                                      • SHA256 94d9c3b452ff4ba173d8686e6fa0fccaa2d653b7e10250769116a00edae8bad5
                                      • MD5 SHA1 SHA512 SSDEEP TLSH

                                      5a2a7058cf8d1e56c20e6b19a7c48eb2386d141b.tbres

                                      • Path C:\Users\Admin\AppData\Local\Microsoft\TokenBroker\Cache\5a2a7058cf8d1e56c20e6b19a7c48eb2386d141b.tbres
                                      • Size 2KB
                                      • SHA256 3f6f33a4bfd7afa18952d12cbc783dc58097346a32e07b297b8a8f0baa06640f
                                      • MD5 SHA1 SHA512 TLSH