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 16:54

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:3528
    • 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,0x7ffa74d03cb8,0x7ffa74d03cc8,0x7ffa74d03cd8
      2⤵
        PID:1976
      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=1924,2046153889760970901,14697730428726049368,131072 --gpu-preferences=SAAAAAAAAADgAAAwAAAAAAAAAAAAAAAAAABgAAAAAAAoAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAB4AAAAAAAAAHgAAAAAAAAAKAAAAAQAAAAgAAAAAAAAACgAAAAAAAAAMAAAAAAAAAA4AAAAAAAAABAAAAAAAAAAAAAAAAUAAAAQAAAAAAAAAAAAAAAGAAAAEAAAAAAAAAABAAAABQAAABAAAAAAAAAAAQAAAAYAAAAIAAAAAAAAAAgAAAAAAAAA --mojo-platform-channel-handle=1936 /prefetch:2
        2⤵
          PID:232
        • 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=1924,2046153889760970901,14697730428726049368,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2208 /prefetch:3
          2⤵
          • Suspicious behavior: EnumeratesProcesses
          PID:4924
        • 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=1924,2046153889760970901,14697730428726049368,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2668 /prefetch:8
          2⤵
            PID:4148
          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1924,2046153889760970901,14697730428726049368,131072 --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=3272 /prefetch:1
            2⤵
              PID:4028
            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1924,2046153889760970901,14697730428726049368,131072 --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=3400 /prefetch:1
              2⤵
                PID:4836
              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1924,2046153889760970901,14697730428726049368,131072 --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=5236 /prefetch:1
                2⤵
                  PID:1376
                • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1924,2046153889760970901,14697730428726049368,131072 --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=5212 /prefetch:1
                  2⤵
                    PID:3908
                  • 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=1924,2046153889760970901,14697730428726049368,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=3324 /prefetch:8
                    2⤵
                    • Suspicious behavior: EnumeratesProcesses
                    PID:4476
                  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1924,2046153889760970901,14697730428726049368,131072 --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=5148 /prefetch:1
                    2⤵
                      PID:1528
                    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1924,2046153889760970901,14697730428726049368,131072 --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=3320 /prefetch:1
                      2⤵
                        PID:1472
                      • 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=1924,2046153889760970901,14697730428726049368,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5420 /prefetch:8
                        2⤵
                        • Suspicious behavior: EnumeratesProcesses
                        PID:1668
                      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=1924,2046153889760970901,14697730428726049368,131072 --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=876 /prefetch:2
                        2⤵
                        • Suspicious behavior: EnumeratesProcesses
                        PID:3888
                    • C:\Windows\System32\CompPkgSrv.exe
                      C:\Windows\System32\CompPkgSrv.exe -Embedding
                      1⤵
                        PID:228
                      • C:\Windows\System32\CompPkgSrv.exe
                        C:\Windows\System32\CompPkgSrv.exe -Embedding
                        1⤵
                          PID:5048

                        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

                          92a049a6af68e63f0042deaea4f3c1b9

                          SHA1

                          85e1466581b47e443eb9a6786eb11fcbcd22675f

                          SHA256

                          4949e39572274a7530e95828f1f9b638c2aab9cceabed76eb6711efd087bfb2a

                          SHA512

                          16551aeb615809a18845e18bb2437e78f6f66a1a233a560078c120dc0a8e2793b0ec08c67efacf92fd35a18c4de346184e3b5804a1685130e513d56e601bf04a

                        • 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

                          8128424bef3ed513266cc5a09f0e1d9b

                          SHA1

                          38ae59c8a65ae7c56af5eeeb80e7d57af836b7bf

                          SHA256

                          5002a859a273aed19fad9fa14d1379ad0b98afe89fd441f93317494a4928297a

                          SHA512

                          a050ba1823b5b87698187fcc84d9061617ae1a8009b80a233a19695347cd3faed3f895dcf36fe2c6099c077b7919313fb8224971a09acbb9a04289737818dd49

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

                          Filesize

                          6KB

                          MD5

                          3a600768e0e1f98b2addee82b922489b

                          SHA1

                          f5c7a46c4516dcd2409a5d71b8489c2875a01cae

                          SHA256

                          d7467d004871d5b018118e37fbae378609b652f31541e5c0fa1d66bc5329397c

                          SHA512

                          a82463d3c9ec87263d93e1ae494d3763e53dc3a601294f0e15fd96b51c936d3c52f4574cce17e82f8862c6b8dd9bc41ccdc2279cf6d7e753a91cfbf54482a461

                        • 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

                          b399fd5cd3afb81fb841819c574a9c38

                          SHA1

                          ce88cf85a20c5ce984f4198f7b79dff7231ba3f4

                          SHA256

                          2472bfc9d5327d9eaaaa358adbc30a6c022584ad6e59b2229909ffe8679382a2

                          SHA512

                          0fd68df74ef6c4ef8249023868ff579c90ca915ca1e99e7079daddb145d855c429d0ca4ec5cdac5aaa839149d66fcab24f2f0b47e6bacf116c8d99fc525d9586