Analysis

  • user interaction
    yes
  • max time kernel
    29s
  • max time network
    31s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250619-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250619-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11/05/2026, 15:44

General

  • Target
    BestSign.xlsx
  • Size 26B
  • Sample260511-s6s2dahs2q
  • SHA256 2c497770ca9f02bfdf56c050566af640e24c31b214007761683ab5a89f301373
  • MD5 SHA1 SHA512
Score
3/10

Malware Config

Signatures

  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Checks processor information in registry 2 TTPs 5 IoCs

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

  • Enumerates system info in registry 2 TTPs 6 IoCs
  • Modifies data under HKEY_USERS 2 IoCs
  • Modifies registry class 2 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 3 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 13 IoCs
  • Suspicious use of WriteProcessMemory 24 IoCs

Processes

  • C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
    "C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\BestSign.xlsx"
    1⤵
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3488
    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --single-argument http://officeredir.microsoft.com/r/rlidUNLGenuine?LCID=1033&MSG=2&PID=00414-50000-00000-AA267
      2⤵
      • Checks processor information in registry
      • 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:4544
      • 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=133.0.6943.99 "--annotation=exe=C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --annotation=plat=Win64 --annotation=prod=Edge --annotation=ver=133.0.3065.69 --initial-client-data=0x2c8,0x2cc,0x2d0,0x2c4,0x2f0,0x7ff91340f208,0x7ff91340f214,0x7ff91340f220
        3⤵
          PID:1900
        • 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 --string-annotations --always-read-main-dll --field-trial-handle=1780,i,7683081651152347653,9509437111739350251,262144 --variations-seed-version --mojo-platform-channel-handle=2248 /prefetch:3
          3⤵
            PID:4896
          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --string-annotations --gpu-preferences=UAAAAAAAAADgAAAEAAAAAAAAAAAAAAAAAABgAAEAAAAAAAAAAAAAAAAAAAACAAAAAAAAAAAAAAAAAAAAAAAAABAAAAAAAAAAEAAAAAAAAAAIAAAAAAAAAAgAAAAAAAAA --always-read-main-dll --field-trial-handle=2220,i,7683081651152347653,9509437111739350251,262144 --variations-seed-version --mojo-platform-channel-handle=2216 /prefetch:2
            3⤵
              PID:2668
            • 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 --string-annotations --always-read-main-dll --field-trial-handle=2360,i,7683081651152347653,9509437111739350251,262144 --variations-seed-version --mojo-platform-channel-handle=2972 /prefetch:8
              3⤵
                PID:2232
              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --string-annotations --pdf-upsell-enabled --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 --field-trial-handle=3480,i,7683081651152347653,9509437111739350251,262144 --variations-seed-version --mojo-platform-channel-handle=3528 /prefetch:1
                3⤵
                  PID:5304
                • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --string-annotations --pdf-upsell-enabled --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 --field-trial-handle=3488,i,7683081651152347653,9509437111739350251,262144 --variations-seed-version --mojo-platform-channel-handle=3536 /prefetch:1
                  3⤵
                    PID:1884
                  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --string-annotations --pdf-upsell-enabled --disable-gpu-compositing --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 --field-trial-handle=4936,i,7683081651152347653,9509437111739350251,262144 --variations-seed-version --mojo-platform-channel-handle=4968 /prefetch:1
                    3⤵
                      PID:836
                    • 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 --string-annotations --always-read-main-dll --field-trial-handle=5228,i,7683081651152347653,9509437111739350251,262144 --variations-seed-version --mojo-platform-channel-handle=5256 /prefetch:8
                      3⤵
                        PID:3168
                      • 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 --string-annotations --always-read-main-dll --field-trial-handle=5200,i,7683081651152347653,9509437111739350251,262144 --variations-seed-version --mojo-platform-channel-handle=5176 /prefetch:8
                        3⤵
                          PID:3852
                        • C:\Program Files (x86)\Microsoft\Edge\Application\133.0.3065.69\identity_helper.exe
                          "C:\Program Files (x86)\Microsoft\Edge\Application\133.0.3065.69\identity_helper.exe" --type=utility --utility-sub-type=winrt_app_id.mojom.WinrtAppIdService --lang=en-US --service-sandbox-type=none --string-annotations --always-read-main-dll --field-trial-handle=5680,i,7683081651152347653,9509437111739350251,262144 --variations-seed-version --mojo-platform-channel-handle=5824 /prefetch:8
                          3⤵
                            PID:6076
                          • C:\Program Files (x86)\Microsoft\Edge\Application\133.0.3065.69\identity_helper.exe
                            "C:\Program Files (x86)\Microsoft\Edge\Application\133.0.3065.69\identity_helper.exe" --type=utility --utility-sub-type=winrt_app_id.mojom.WinrtAppIdService --lang=en-US --service-sandbox-type=none --string-annotations --always-read-main-dll --field-trial-handle=5680,i,7683081651152347653,9509437111739350251,262144 --variations-seed-version --mojo-platform-channel-handle=5824 /prefetch:8
                            3⤵
                              PID:4432
                            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=data_decoder.mojom.DataDecoderService --lang=en-US --service-sandbox-type=service --string-annotations --always-read-main-dll --field-trial-handle=6028,i,7683081651152347653,9509437111739350251,262144 --variations-seed-version --mojo-platform-channel-handle=6044 /prefetch:8
                              3⤵
                                PID:5628
                          • C:\Program Files (x86)\Microsoft\Edge\Application\133.0.3065.69\elevation_service.exe
                            "C:\Program Files (x86)\Microsoft\Edge\Application\133.0.3065.69\elevation_service.exe"
                            1⤵
                              PID:2068

                            Network

                                  MITRE ATT&CK Enterprise v16

                                  Replay Monitor

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                                  Downloads

                                  settings.dat

                                  • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad\settings.dat
                                  • Size 280B
                                  • SHA256 6847da93c0e8ba021039564b54e5b8340cfaebcc9903f353104c8db5eacedd99
                                  • 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 61416443bb2670514b24162383a5e939e62c336fe129778dd62f92e247061f4c
                                  • MD5 SHA1 SHA512 TLSH

                                  the-real-index~RFe57b779.TMP

                                  • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Code Cache\js\index-dir\the-real-index~RFe57b779.TMP
                                  • Size 3KB
                                  • SHA256 3b384265fa19515326f1c452d0f49073dcaa7135bf3ca9bf8152eba1dfc8b709
                                  • 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

                                  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 16KB
                                  • SHA256 ee1b6b415c3cd22866f2764374fcbc71b311b0c6ec4eef9f0faee098e5ca7ac3
                                  • MD5 SHA1 SHA512 SSDEEP TLSH

                                  Preferences

                                  • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Preferences
                                  • Size 16KB
                                  • SHA256 f6fc3904e2b6d0f4a10b84d381abcb9d6734b39806d37e5076255d048d183596
                                  • MD5 SHA1 SHA512 SSDEEP TLSH

                                  Secure Preferences

                                  • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Secure Preferences
                                  • Size 36KB
                                  • SHA256 6bd5cd7435858bd7fa3535475e25db1c4aabee7b2c36c706b71dbd8bbf5ce14d
                                  • 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 22KB
                                  • SHA256 42485845d4b9cdd8ad892b17fce149a6a4424a907fcfacef2bc123bfa497e34a
                                  • MD5 SHA1 SHA512 SSDEEP TLSH

                                  Local State

                                  • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Local State
                                  • Size 38KB
                                  • SHA256 072a838b95eede13e4c2d338dd9673eb64636034e4e55fc6cbf05f15c45349a1
                                  • MD5 SHA1 SHA512 SSDEEP TLSH

                                  Local State

                                  • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Local State
                                  • Size 38KB
                                  • SHA256 7f3fa668d44ca177d3994b06778338785dd07614379a3b494a02fe0b2340086c
                                  • MD5 SHA1 SHA512 SSDEEP TLSH

                                  Local State

                                  • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Local State
                                  • Size 37KB
                                  • SHA256 9250a6ddc40e3dbe51ad595eeffaf44b8f63dec5b3cf95d047f4fc9ac8ab51ad
                                  • MD5 SHA1 SHA512 SSDEEP TLSH

                                  ac32e468-c368-4e5a-aa07-c811477289aa.tmp

                                  • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\ac32e468-c368-4e5a-aa07-c811477289aa.tmp
                                  • Size 38KB
                                  • SHA256 b48d2b0450ecf920b28179c8341bff4a3f46d25eaae73e3589e7e36feb143c73
                                  • MD5 SHA1 SHA512 SSDEEP TLSH

                                  089d66ba04a8cec4bdc5267f42f39cf84278bb67.tbres

                                  • Path C:\Users\Admin\AppData\Local\Microsoft\TokenBroker\Cache\089d66ba04a8cec4bdc5267f42f39cf84278bb67.tbres
                                  • Size 2KB
                                  • SHA256 5947d9d6de7f79f59df5f52329710071b912f07fdc167ab18d4f79e980308248
                                  • MD5 SHA1 SHA512 TLSH

                                  49dbe2955480c7f6ef8cec9c4320c9868d9293fd.tbres

                                  • Path C:\Users\Admin\AppData\Local\Microsoft\TokenBroker\Cache\49dbe2955480c7f6ef8cec9c4320c9868d9293fd.tbres
                                  • Size 2KB
                                  • SHA256 8f53fcb9dccbb2f02f5477413953aa92156931ed7e8fba3fbdffe1b7c7c9f44b
                                  • MD5 SHA1 SHA512 TLSH

                                  5a2a7058cf8d1e56c20e6b19a7c48eb2386d141b.tbres

                                  • Path C:\Users\Admin\AppData\Local\Microsoft\TokenBroker\Cache\5a2a7058cf8d1e56c20e6b19a7c48eb2386d141b.tbres
                                  • Size 2KB
                                  • SHA256 474049fc382846a735c8ba09d3f842413c48bc6d741b8caa9146dc213e673d53
                                  • MD5 SHA1 SHA512 TLSH

                                  memory/2068-51-0x00000275C7C00000-0x00000275C7DA1000-memory.dmp

                                  memory/3488-0-0x00007FF8F7770000-0x00007FF8F7780000-memory.dmp

                                  memory/3488-114-0x00007FF9376F0000-0x00007FF9378E5000-memory.dmp

                                  memory/3488-115-0x000001B865060000-0x000001B865201000-memory.dmp

                                  memory/3488-11-0x00007FF8F4EC0000-0x00007FF8F4ED0000-memory.dmp

                                  memory/3488-10-0x00007FF8F4EC0000-0x00007FF8F4ED0000-memory.dmp

                                  memory/3488-7-0x00007FF8F7770000-0x00007FF8F7780000-memory.dmp

                                  memory/3488-8-0x00007FF9376F0000-0x00007FF9378E5000-memory.dmp

                                  memory/3488-144-0x000001B865060000-0x000001B865201000-memory.dmp

                                  memory/3488-9-0x00007FF9376F0000-0x00007FF9378E5000-memory.dmp

                                  memory/3488-5-0x00007FF9376F0000-0x00007FF9378E5000-memory.dmp

                                  memory/3488-6-0x00007FF9376F0000-0x00007FF9378E5000-memory.dmp

                                  memory/3488-4-0x00007FF8F7770000-0x00007FF8F7780000-memory.dmp

                                  memory/3488-3-0x00007FF93778D000-0x00007FF93778E000-memory.dmp

                                  memory/3488-2-0x00007FF8F7770000-0x00007FF8F7780000-memory.dmp

                                  memory/3488-1-0x00007FF8F7770000-0x00007FF8F7780000-memory.dmp