Analysis

  • max time kernel
    1681s
  • max time network
    1686s
  • platform
    windows11-21h2_x64
  • resource
    win11-20241007-en
  • resource tags

    arch:x64arch:x86image:win11-20241007-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    14-11-2024 15:41

General

  • Target

    https://store.steampowered.com/

Malware Config

Signatures

  • Detected potential entity reuse from brand STEAM.
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 12 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 6 IoCs
  • Suspicious use of FindShellTrayWindow 25 IoCs
  • Suspicious use of SendNotifyMessage 12 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --start-maximized --single-argument https://store.steampowered.com/
    1⤵
    • Enumerates system info in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:3640
    • 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:7 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad" "--metrics-dir=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data" --annotation=IsOfficialBuild=1 --annotation=channel= --annotation=chromium-version=90.0.4430.212 "--annotation=exe=C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --annotation=plat=Win64 "--annotation=prod=Microsoft Edge" --annotation=ver=90.0.818.66 --initial-client-data=0x100,0x104,0x108,0xdc,0x10c,0x7fff45a23cb8,0x7fff45a23cc8,0x7fff45a23cd8
      2⤵
        PID:1072
      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=1904,10128291474599587824,5197379499437532433,131072 --gpu-preferences=SAAAAAAAAADgAAAwAAAAAAAAAAAAAAAAAABgAAAAAAAoAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAB4AAAAAAAAAHgAAAAAAAAAKAAAAAQAAAAgAAAAAAAAACgAAAAAAAAAMAAAAAAAAAA4AAAAAAAAABAAAAAAAAAAAAAAAAUAAAAQAAAAAAAAAAAAAAAGAAAAEAAAAAAAAAABAAAABQAAABAAAAAAAAAAAQAAAAYAAAAIAAAAAAAAAAgAAAAAAAAA --mojo-platform-channel-handle=1752 /prefetch:2
        2⤵
          PID:1104
        • 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 --field-trial-handle=1904,10128291474599587824,5197379499437532433,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2244 /prefetch:3
          2⤵
          • Suspicious behavior: EnumeratesProcesses
          PID:3320
        • 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 --field-trial-handle=1904,10128291474599587824,5197379499437532433,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2604 /prefetch:8
          2⤵
            PID:876
          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1904,10128291474599587824,5197379499437532433,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=6 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3236 /prefetch:1
            2⤵
              PID:792
            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1904,10128291474599587824,5197379499437532433,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3228 /prefetch:1
              2⤵
                PID:1864
              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1904,10128291474599587824,5197379499437532433,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=7 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5188 /prefetch:1
                2⤵
                  PID:2076
                • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1904,10128291474599587824,5197379499437532433,131072 --lang=en-US --disable-client-side-phishing-detection --instant-process --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=8 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5172 /prefetch:1
                  2⤵
                    PID:1852
                  • C:\Program Files (x86)\Microsoft\Edge\Application\90.0.818.66\identity_helper.exe
                    "C:\Program Files (x86)\Microsoft\Edge\Application\90.0.818.66\identity_helper.exe" --type=utility --utility-sub-type=winrt_app_id.mojom.WinrtAppIdService --field-trial-handle=1904,10128291474599587824,5197379499437532433,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5716 /prefetch:8
                    2⤵
                    • Suspicious behavior: EnumeratesProcesses
                    PID:2564
                  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1904,10128291474599587824,5197379499437532433,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=10 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=4564 /prefetch:1
                    2⤵
                      PID:4388
                    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1904,10128291474599587824,5197379499437532433,131072 --lang=en-US --disable-client-side-phishing-detection --instant-process --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=11 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5100 /prefetch:1
                      2⤵
                        PID:3788
                      • 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 --field-trial-handle=1904,10128291474599587824,5197379499437532433,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=4880 /prefetch:8
                        2⤵
                        • Suspicious behavior: EnumeratesProcesses
                        PID:1940
                      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=1904,10128291474599587824,5197379499437532433,131072 --disable-gpu-sandbox --use-gl=disabled --gpu-vendor-id=4318 --gpu-device-id=140 --gpu-sub-system-id=0 --gpu-revision=0 --gpu-driver-version=10.0.22000.1 --gpu-preferences=SAAAAAAAAADoAAAwAAAAAAAAAAAAAAAAAABgAAAQAAAoAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAB4AAAAAAAAAHgAAAAAAAAAKAAAAAQAAAAgAAAAAAAAACgAAAAAAAAAMAAAAAAAAAA4AAAAAAAAABAAAAAAAAAAAAAAAAUAAAAQAAAAAAAAAAAAAAAGAAAAEAAAAAAAAAABAAAABQAAABAAAAAAAAAAAQAAAAYAAAAIAAAAAAAAAAgAAAAAAAAA --mojo-platform-channel-handle=3008 /prefetch:2
                        2⤵
                        • Suspicious behavior: EnumeratesProcesses
                        PID:4832
                    • C:\Windows\System32\CompPkgSrv.exe
                      C:\Windows\System32\CompPkgSrv.exe -Embedding
                      1⤵
                        PID:3068
                      • C:\Windows\System32\CompPkgSrv.exe
                        C:\Windows\System32\CompPkgSrv.exe -Embedding
                        1⤵
                          PID:1992

                        Network

                        MITRE ATT&CK Enterprise v15

                        Replay Monitor

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                        Downloads

                        • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad\settings.dat

                          Filesize

                          152B

                          MD5

                          e1544690d41d950f9c1358068301cfb5

                          SHA1

                          ae3ff81363fcbe33c419e49cabef61fb6837bffa

                          SHA256

                          53d69c9cc3c8aaf2c8b58ea6a2aa47c49c9ec11167dd9414cd9f4192f9978724

                          SHA512

                          1e4f1fe2877f4f947d33490e65898752488e48de34d61e197e4448127d6b1926888de80b62349d5a88b96140eed0a5b952ef4dd7ca318689f76e12630c9029da

                        • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad\settings.dat

                          Filesize

                          152B

                          MD5

                          9314124f4f0ad9f845a0d7906fd8dfd8

                          SHA1

                          0d4f67fb1a11453551514f230941bdd7ef95693c

                          SHA256

                          cbd58fa358e4b1851c3da2d279023c29eba66fb4d438c6e87e7ce5169ffb910e

                          SHA512

                          87b9060ca4942974bd8f95b8998df7b2702a3f4aba88c53b2e3423a532a75407070368f813a5bbc0251864b4eae47e015274a839999514386d23c8a526d05d85

                        • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Code Cache\js\index-dir\the-real-index

                          Filesize

                          456B

                          MD5

                          3c767dbfafcdf27602bdfac7f1d8d976

                          SHA1

                          40c9e916c7f87ba7c3769cf14893fc4bb4894445

                          SHA256

                          3a7d4d975157c6b8b5901b5a5e4986bc7ce53ca2fccb0dc333e13d32bd9d171c

                          SHA512

                          4601107b13e27834da6755741368c67727ae96cbd480c6233e053e87bc5607e13105dc4527396f61e32e04823cfaaad59d99cbfa4b96d02b3dbbe23826839eb4

                        • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Network Persistent State

                          Filesize

                          367B

                          MD5

                          3dce5fe5978fa9421facce55c4594af5

                          SHA1

                          e72b242822f88e4824c4d1ab8dce9550627de47a

                          SHA256

                          65d647ca68b46f75c6223b383c3984024291169de1c596849ee2d34dea19253f

                          SHA512

                          2d099109deb49f4407cf39caa0783a62c8d1ef7e0939d1c2547e01da027e76b9f6e609ddc2c10b50e3f09f31f24450ee649bf6607934f4abad832bda5d0d8976

                        • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Preferences

                          Filesize

                          5KB

                          MD5

                          33bd4efa254f232c3386cd233677d755

                          SHA1

                          d3cf7edd378b90cae6e3c6c0fbf3c72d09b58d25

                          SHA256

                          2fb87231f361b5da45b33c0b0ff3152dd7805feeabbe0303d1d301d4193069cf

                          SHA512

                          5c64105e92281acb0b872cb8e21c761a170746565cbfc59628bd8c36f7fb127236f3d72f5a5be8490e8036792b8b65b8aea0c884113e0dcbc6d154ee11b8341b

                        • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Preferences

                          Filesize

                          6KB

                          MD5

                          8d0c8007cfb2d2441ffd08c98b01ad2a

                          SHA1

                          fe1e64515a05c76d9a82cd814aac3ab6adde355b

                          SHA256

                          7261dbbb6adb01a8909f827690b34bb577cf6de9019d558c4facc35e70dddc7e

                          SHA512

                          bad77b8ba58e2b73413b892505f9401444fe989e8d656d83c4f426c301029587189d56f8a04dd7dd7dfdef116f4a075e1c6f089bbc90e117240343fda8379419

                        • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\data_reduction_proxy_leveldb\CURRENT

                          Filesize

                          16B

                          MD5

                          6752a1d65b201c13b62ea44016eb221f

                          SHA1

                          58ecf154d01a62233ed7fb494ace3c3d4ffce08b

                          SHA256

                          0861415cada612ea5834d56e2cf1055d3e63979b69eb71d32ae9ae394d8306cd

                          SHA512

                          9cfd838d3fb570b44fc3461623ab2296123404c6c8f576b0de0aabd9a6020840d4c9125eb679ed384170dbcaac2fa30dc7fa9ee5b77d6df7c344a0aa030e0389

                        • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Local State

                          Filesize

                          10KB

                          MD5

                          e64ac44347a6866810bb8989b85d150e

                          SHA1

                          47f8a3582fd2010a8b7f4164134aec569e59e790

                          SHA256

                          c3c89ee82eaae175c77fe2e381585fde266ed75a6a5ed37eae6cc45e2cef08ef

                          SHA512

                          ff3756e1abfde9acff0503548825aa2bee733e8b00207b32bf4ac42998b3ed1ec96496a2317a244f887c64fa551c00236f7e667506d8d921c93ae4536a1636b5