Analysis

  • max time kernel
    7s
  • max time network
    9s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15-11-2024 11:29

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 4 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 2 IoCs
  • Suspicious use of FindShellTrayWindow 25 IoCs
  • Suspicious use of SendNotifyMessage 24 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:4464
    • 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=92.0.4515.131 "--annotation=exe=C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --annotation=plat=Win64 "--annotation=prod=Microsoft Edge" --annotation=ver=92.0.902.67 --initial-client-data=0xfc,0x100,0x104,0xd8,0x108,0x7ffd8e3646f8,0x7ffd8e364708,0x7ffd8e364718
      2⤵
        PID:4728
      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2092,12878724799571222362,810911360833978958,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2124 /prefetch:2
        2⤵
          PID:3680
        • 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=2092,12878724799571222362,810911360833978958,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2188 /prefetch:3
          2⤵
          • Suspicious behavior: EnumeratesProcesses
          PID:3792
        • 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=2092,12878724799571222362,810911360833978958,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2676 /prefetch:8
          2⤵
            PID:5016
          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2092,12878724799571222362,810911360833978958,131072 --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=3304 /prefetch:1
            2⤵
              PID:4144
            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2092,12878724799571222362,810911360833978958,131072 --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=3320 /prefetch:1
              2⤵
                PID:4088
            • C:\Windows\System32\CompPkgSrv.exe
              C:\Windows\System32\CompPkgSrv.exe -Embedding
              1⤵
                PID:4932
              • C:\Windows\System32\CompPkgSrv.exe
                C:\Windows\System32\CompPkgSrv.exe -Embedding
                1⤵
                  PID:1228

                Network

                MITRE ATT&CK Enterprise v15

                Replay Monitor

                Loading Replay Monitor...

                Downloads

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

                  Filesize

                  152B

                  MD5

                  e55832d7cd7e868a2c087c4c73678018

                  SHA1

                  ed7a2f6d6437e907218ffba9128802eaf414a0eb

                  SHA256

                  a4d7777b980ec53de3a70aca8fb25b77e9b53187e7d2f0fa1a729ee9a35da574

                  SHA512

                  897fdebf1a9269a1bf1e3a791f6ee9ab7c24c9d75eeff65ac9599764e1c8585784e1837ba5321d90af0b004af121b2206081a6fb1b1ad571a0051ee33d3f5c5f

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

                  Filesize

                  152B

                  MD5

                  c2d9eeb3fdd75834f0ac3f9767de8d6f

                  SHA1

                  4d16a7e82190f8490a00008bd53d85fb92e379b0

                  SHA256

                  1e5efb5f1d78a4cc269cb116307e9d767fc5ad8a18e6cf95c81c61d7b1da5c66

                  SHA512

                  d92f995f9e096ecc0a7b8b4aca336aeef0e7b919fe7fe008169f0b87da84d018971ba5728141557d42a0fc562a25191bd85e0d7354c401b09e8b62cdc44b6dcd

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

                  Filesize

                  5KB

                  MD5

                  4a7260c8eeaeb784d81088bfc95f8c6d

                  SHA1

                  68050a7ade4e77cb6d3f51fa4c29eb7a44fb29c6

                  SHA256

                  4c03d7fa1162fc01cb18d15b0d3d53dbd5187efad8ad31ec3b781575b107cdf5

                  SHA512

                  c7d21923eb809427cdcc219a3c84e4ac140ae283cb1aa5bed80578069d3a204d92f8cfc1723c9f22b927a78065c4f5542fa6fee5207b68cdefa27aff8c95c84a