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Analysis

  • max time kernel
    46s
  • max time network
    53s
  • platform
    windows11-21h2_x64
  • resource
    win11-20241007-en
  • resource tags

    arch:x64arch:x86image:win11-20241007-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    16/01/2025, 17:22

General

  • Target

    https://excelonline.nel.measure.office.net

Malware Config

Signatures

  • sample_rule 4 IoCs
  • Detected potential entity reuse from brand MICROSOFT.
  • Drops file in Windows directory 1 IoCs
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies data under HKEY_USERS 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 26 IoCs
  • Suspicious use of SendNotifyMessage 12 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Program Files\Google\Chrome\Application\chrome.exe
    "C:\Program Files\Google\Chrome\Application\chrome.exe" --disable-background-networking --disable-component-update --simulate-outdated-no-au='Tue, 31 Dec 2099 23:59:59 GMT' --single-argument https://excelonline.nel.measure.office.net
    1⤵
    • Drops file in Windows directory
    • Enumerates system info in registry
    • Modifies data under HKEY_USERS
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:4908
    • C:\Program Files\Google\Chrome\Application\chrome.exe
      "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=crashpad-handler "--user-data-dir=C:\Users\Admin\AppData\Local\Google\Chrome\User Data" /prefetch:4 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Crashpad" "--metrics-dir=C:\Users\Admin\AppData\Local\Google\Chrome\User Data" --url=https://clients2.google.com/cr/report --annotation=channel= --annotation=plat=Win64 --annotation=prod=Chrome --annotation=ver=123.0.6312.123 --initial-client-data=0xfc,0x100,0x104,0xd8,0x108,0x7ffa626dcc40,0x7ffa626dcc4c,0x7ffa626dcc58
      2⤵
        PID:2256
      • C:\Program Files\Google\Chrome\Application\chrome.exe
        "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --no-appcompat-clear --gpu-preferences=WAAAAAAAAADgAAAMAAAAAAAAAAAAAAAAAABgAAEAAAA4AAAAAAAAAAAAAAAEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAGAAAAAAAAAAYAAAAAAAAAAgAAAAAAAAACAAAAAAAAAAIAAAAAAAAAA== --field-trial-handle=1656,i,11911479409689920681,13695595538448666879,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=1648 /prefetch:2
        2⤵
          PID:2788
        • C:\Program Files\Google\Chrome\Application\chrome.exe
          "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --no-appcompat-clear --field-trial-handle=2076,i,11911479409689920681,13695595538448666879,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=2096 /prefetch:3
          2⤵
            PID:3568
          • C:\Program Files\Google\Chrome\Application\chrome.exe
            "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=storage.mojom.StorageService --lang=en-US --service-sandbox-type=service --no-appcompat-clear --field-trial-handle=2156,i,11911479409689920681,13695595538448666879,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=2312 /prefetch:8
            2⤵
              PID:2928
            • C:\Program Files\Google\Chrome\Application\chrome.exe
              "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --no-appcompat-clear --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=6 --field-trial-handle=3092,i,11911479409689920681,13695595538448666879,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=3136 /prefetch:1
              2⤵
                PID:680
              • C:\Program Files\Google\Chrome\Application\chrome.exe
                "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --no-appcompat-clear --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --field-trial-handle=3100,i,11911479409689920681,13695595538448666879,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=3180 /prefetch:1
                2⤵
                  PID:2836
                • C:\Program Files\Google\Chrome\Application\chrome.exe
                  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.ProcessorMetrics --lang=en-US --service-sandbox-type=none --no-appcompat-clear --field-trial-handle=4556,i,11911479409689920681,13695595538448666879,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=4568 /prefetch:8
                  2⤵
                    PID:4056
                  • C:\Program Files\Google\Chrome\Application\chrome.exe
                    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --no-appcompat-clear --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=8 --field-trial-handle=4836,i,11911479409689920681,13695595538448666879,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=4832 /prefetch:1
                    2⤵
                      PID:1264
                    • C:\Program Files\Google\Chrome\Application\chrome.exe
                      "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --no-appcompat-clear --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=9 --field-trial-handle=4884,i,11911479409689920681,13695595538448666879,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=4796 /prefetch:1
                      2⤵
                        PID:2668
                    • C:\Program Files\Google\Chrome\Application\123.0.6312.123\elevation_service.exe
                      "C:\Program Files\Google\Chrome\Application\123.0.6312.123\elevation_service.exe"
                      1⤵
                        PID:752
                      • C:\Windows\system32\svchost.exe
                        C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s NgcSvc
                        1⤵
                          PID:1936

                        Network

                        MITRE ATT&CK Enterprise v15

                        Replay Monitor

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                        Downloads

                        • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\BrowsingTopicsState

                          Filesize

                          649B

                          MD5

                          bb1fbd020e4701cd3210915c40b7850e

                          SHA1

                          ef6208b0b089b0204863da68a00713e89c468230

                          SHA256

                          595a45601bc7cb981ab1eba4cafbf6609ff7155439c51ccbc643a78eaf70cbd2

                          SHA512

                          76961c5af30b75f34d52e23899c351ebb47bab73a570b8ca7212b986fbdfb805c3d083cb4df0ce9c86c5e2f42f5f9a53176bfb52dedad7f60dd2f7a4b4175370

                        • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Code Cache\js\index-dir\temp-index

                          Filesize

                          1KB

                          MD5

                          d4b7339153fbaf55f082667339e8bebc

                          SHA1

                          863967a51dfac2d7ba0220605608ae064a7e1858

                          SHA256

                          286d8e089ab637aeab462d745bd9874a3750db0c7b0b5412e259e8b1f90d259e

                          SHA512

                          c3a78b10e0581b81c5c5cbb92c0c6c0b334e64670ad543197fa8b4ec816d00c1d9c63f150e81ce16beb512a292935ab32a1caf884043ddf5b6702d4f44e37f6e

                        • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\SCT Auditing Pending Reports

                          Filesize

                          2B

                          MD5

                          d751713988987e9331980363e24189ce

                          SHA1

                          97d170e1550eee4afc0af065b78cda302a97674c

                          SHA256

                          4f53cda18c2baa0c0354bb5f9a3ecbe5ed12ab4d8e11ba873c2f11161202b945

                          SHA512

                          b25b294cb4deb69ea00a4c3cf3113904801b6015e5956bd019a8570b1fe1d6040e944ef3cdee16d0a46503ca6e659a25f21cf9ceddc13f352a3c98138c15d6af

                        • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\TransportSecurity

                          Filesize

                          1KB

                          MD5

                          93c5b24d70183090e602430649427e68

                          SHA1

                          4fc9997d7e6dd5fb2398ca0dfe7a55d504c87fd2

                          SHA256

                          2bb304f979f7157f998f64c18655e7716f690401d1f65e59f0b56608f4e53df9

                          SHA512

                          22560d666e0c46686da118049d0825b0164d9f81c8ccde87960addda22736f1899cfbf49e287ce7ea202d426f88ba11f4833729550148229dcbed886c5f8ab3b

                        • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\TransportSecurity

                          Filesize

                          1KB

                          MD5

                          46c7bf46774ecc37d6e672576a95cea7

                          SHA1

                          8d4774f0b0071f796f76f1516246d6a0943dfea5

                          SHA256

                          bd58b6ad1cb5ca54ad1b23b8a84cee33b17999a3c114f8f86a049a1a60c536b3

                          SHA512

                          6e4dda3db72b5d11b7da68a5002215f1386dee505368b0246b0065180ac3e570277427f6079bcf9ce2d23bbfe1d1cb11c9a9fb0563a4f9022e28020a892945a1

                        • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences

                          Filesize

                          9KB

                          MD5

                          b61cf242ac1768fa58fc5fea9c1e381e

                          SHA1

                          9ef086123ffc604401a2ebfdb4e8fe73d24df0f4

                          SHA256

                          c96a4d5f460261be6b6e1e433f5a20b9cceba2b458f4ce91920ec204f158c8f4

                          SHA512

                          0ca472d96cf662c9aee9ef55f0214d8e1a8df0f56bad3c18499ce427e25db240907f2a44224b5cf340ca5f3350a5c1dc5e36ad092008ffe806d60bc483a05e30

                        • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences

                          Filesize

                          9KB

                          MD5

                          f00e8252c7f7a8a1e0161b51a14f6086

                          SHA1

                          5435d92333b93fd808e16a5c86bde8d6ab18d8bc

                          SHA256

                          303c1f1740e616ae2700b239bab609696e894222b1441e318b5d426f39c4f908

                          SHA512

                          cd4d5b484da3cdf8f6d54b1c456adf42ca349be007467f9d661b3b105b91b01729116867703c5cebaa718308f7285d02a477e2c1ac74eefea68c0a2030d71999

                        • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\c74d1f3a-7b27-4909-adf5-4cfa14a32f17.tmp

                          Filesize

                          9KB

                          MD5

                          1cc1267c92fb60b23a490eeb621f2b21

                          SHA1

                          8aec41091e5701b159841833004c6d9c11004401

                          SHA256

                          bda486c34c387989b0d8d203b13b9c9496d614eda7e1e5e0e5c28957b2747dae

                          SHA512

                          d1ca9dc6273661ad639f2b9ca44f23237dc154d1add61ac86f0833a870a2aef289480090f9bd3b7bce1e52fac84ea8f9e37eef505d9d60c15bec7d8cda83ce2e

                        • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Local State

                          Filesize

                          115KB

                          MD5

                          b60fb390d9179feb24ee67c10feb551f

                          SHA1

                          66988dca66ac16bdf3f7af3e2b5ede9610b2338b

                          SHA256

                          4c9bddeed14cee916966baacc4ccf3c87d50688899e3938a334d5d282a0461ba

                          SHA512

                          4bdec4a90cff680e1101e9281b997f101cba509e9317af83aa6497174ec50be5c6c013cfecae5e1f824e9722c5621dc2e9971d8e9441b0c4c1267f735977af64

                        • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Local State

                          Filesize

                          115KB

                          MD5

                          ac304ba5841b72864ed43029b9ebecce

                          SHA1

                          05e8e10752777a149abc2382744328c542e3adc1

                          SHA256

                          d35e89ffc8c982de02382a48797ae04e4c133fd3b87e0993214be7aceb4767ba

                          SHA512

                          384b2c1eec84a3d889262cae626e4716c3c51b04451f9b25a069ffa768914ef16bc689fc3af1cf4427244579309308e997569fdf6ac45947fab04e9ebe4cc129