Analysis

  • max time kernel
    59s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    29/04/2024, 16:23

General

  • Target

    steam_api64.dll

  • Size

    293KB

  • MD5

    6e84e20f5dd2c65a52a5f0e021cd6f92

  • SHA1

    669b57cf98b716b417db836ab12e1e88167fcf99

  • SHA256

    d7d7253d8f3a8a9bc05ec5b8a4b38b1a23e501bc99500c470d4117638fd52fea

  • SHA512

    2af9e36d6ec94aa854f241f7aa8a8848208b782a63ff84459418cec3f28d2c4a8526cf526bab1912d84267f328635cbddd5a2b4b5f7d804d767158a47e583ae2

  • SSDEEP

    6144:rYtj4IJiOnpwbkfI3Vu2gF8oF6tYLSOt7SeISI03a89jonb:rYtMIcOnibkfI3LPtYLlt7Skrwb

Score
1/10

Malware Config

Signatures

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 60 IoCs
  • Suspicious use of FindShellTrayWindow 34 IoCs
  • Suspicious use of SendNotifyMessage 32 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\steam_api64.dll,#1
    1⤵
      PID:2736
    • C:\Windows\explorer.exe
      "C:\Windows\explorer.exe"
      1⤵
        PID:2888
      • C:\Program Files\Google\Chrome\Application\chrome.exe
        "C:\Program Files\Google\Chrome\Application\chrome.exe"
        1⤵
        • Enumerates system info in registry
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        • Suspicious use of WriteProcessMemory
        PID:2840
        • 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:7 --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=106.0.5249.119 --initial-client-data=0xc0,0xc4,0xc8,0x94,0xcc,0x7fef6ed9758,0x7fef6ed9768,0x7fef6ed9778
          2⤵
            PID:664
          • C:\Program Files\Google\Chrome\Application\chrome.exe
            "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --gpu-preferences=UAAAAAAAAADgAAAYAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAQAAAAAAAAAAAAAAAAAAAAAAAAAEgAAAAAAAAASAAAAAAAAAAYAAAAAgAAABAAAAAAAAAAGAAAAAAAAAAQAAAAAAAAAAAAAAAOAAAAEAAAAAAAAAABAAAADgAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=1116 --field-trial-handle=1340,i,2714105374974719740,11093291889639227210,131072 /prefetch:2
            2⤵
              PID:1644
            • 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 --mojo-platform-channel-handle=1548 --field-trial-handle=1340,i,2714105374974719740,11093291889639227210,131072 /prefetch:8
              2⤵
                PID:2584
              • 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=utility --mojo-platform-channel-handle=1648 --field-trial-handle=1340,i,2714105374974719740,11093291889639227210,131072 /prefetch:8
                2⤵
                  PID:1992
                • C:\Program Files\Google\Chrome\Application\chrome.exe
                  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --first-renderer-process --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=6 --mojo-platform-channel-handle=2372 --field-trial-handle=1340,i,2714105374974719740,11093291889639227210,131072 /prefetch:1
                  2⤵
                    PID:2028
                  • C:\Program Files\Google\Chrome\Application\chrome.exe
                    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --mojo-platform-channel-handle=2408 --field-trial-handle=1340,i,2714105374974719740,11093291889639227210,131072 /prefetch:1
                    2⤵
                      PID:2240
                    • C:\Program Files\Google\Chrome\Application\chrome.exe
                      "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --gpu-preferences=UAAAAAAAAADgAAAYAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAQAAAAAAAAAAAAAAAAAAAAAAAAAEgAAAAAAAAASAAAAAAAAAAYAAAAAgAAABAAAAAAAAAAGAAAAAAAAAAQAAAAAAAAAAAAAAAOAAAAEAAAAAAAAAABAAAADgAAAAgAAAAAAAAACAAAAAAAAAA= --use-gl=angle --use-angle=swiftshader-webgl --mojo-platform-channel-handle=1504 --field-trial-handle=1340,i,2714105374974719740,11093291889639227210,131072 /prefetch:2
                      2⤵
                        PID:1776
                      • C:\Program Files\Google\Chrome\Application\chrome.exe
                        "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --disable-gpu-compositing --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=8 --mojo-platform-channel-handle=1496 --field-trial-handle=1340,i,2714105374974719740,11093291889639227210,131072 /prefetch:1
                        2⤵
                          PID:2748
                        • C:\Program Files\Google\Chrome\Application\chrome.exe
                          "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=data_decoder.mojom.DataDecoderService --lang=en-US --service-sandbox-type=service --mojo-platform-channel-handle=3504 --field-trial-handle=1340,i,2714105374974719740,11093291889639227210,131072 /prefetch:8
                          2⤵
                            PID:860
                          • C:\Program Files\Google\Chrome\Application\chrome.exe
                            "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=data_decoder.mojom.DataDecoderService --lang=en-US --service-sandbox-type=service --mojo-platform-channel-handle=3620 --field-trial-handle=1340,i,2714105374974719740,11093291889639227210,131072 /prefetch:8
                            2⤵
                              PID:1420
                            • C:\Program Files\Google\Chrome\Application\106.0.5249.119\Installer\setup.exe
                              "C:\Program Files\Google\Chrome\Application\106.0.5249.119\Installer\setup.exe" --reenable-autoupdates --system-level
                              2⤵
                                PID:3036
                                • C:\Program Files\Google\Chrome\Application\106.0.5249.119\Installer\setup.exe
                                  "C:\Program Files\Google\Chrome\Application\106.0.5249.119\Installer\setup.exe" --type=crashpad-handler /prefetch:7 --monitor-self-annotation=ptype=crashpad-handler --database=C:\Windows\TEMP\Crashpad --url=https://clients2.google.com/cr/report --annotation=channel= --annotation=plat=Win64 --annotation=prod=Chrome --annotation=ver=106.0.5249.119 --initial-client-data=0x154,0x158,0x15c,0x128,0x160,0x13f467688,0x13f467698,0x13f4676a8
                                  3⤵
                                    PID:1672
                                • C:\Program Files\Google\Chrome\Application\chrome.exe
                                  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --disable-gpu-compositing --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=11 --mojo-platform-channel-handle=4076 --field-trial-handle=1340,i,2714105374974719740,11093291889639227210,131072 /prefetch:1
                                  2⤵
                                    PID:1572
                                  • C:\Program Files\Google\Chrome\Application\chrome.exe
                                    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=audio.mojom.AudioService --lang=en-US --service-sandbox-type=audio --mojo-platform-channel-handle=3940 --field-trial-handle=1340,i,2714105374974719740,11093291889639227210,131072 /prefetch:8
                                    2⤵
                                      PID:2360
                                    • C:\Program Files\Google\Chrome\Application\chrome.exe
                                      "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.UtilWin --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2140 --field-trial-handle=1340,i,2714105374974719740,11093291889639227210,131072 /prefetch:8
                                      2⤵
                                        PID:1020
                                    • C:\Program Files\Google\Chrome\Application\106.0.5249.119\elevation_service.exe
                                      "C:\Program Files\Google\Chrome\Application\106.0.5249.119\elevation_service.exe"
                                      1⤵
                                        PID:2156

                                      Network

                                            MITRE ATT&CK Enterprise v15

                                            Replay Monitor

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                                            Downloads

                                            • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\6569ffff-8835-43c5-b22b-d13e249f649b.tmp

                                              Filesize

                                              5KB

                                              MD5

                                              c169e48ea72ea4049d6344001de8a8f3

                                              SHA1

                                              29b3336533a189068e70497d07ccfa182887533b

                                              SHA256

                                              f290709d7dff8f9d41f6218e31d011141ac18375c853ab36921cab42471495b3

                                              SHA512

                                              65ecfa98cee0880608eca0544f03f59cc1708eb7a6e2299154ce277e5bdc4ec18f1090f86bef022c0c3f5438f14bde1c65a39d5bad6970df80cafeca2a083808

                                            • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\GPUCache\data_1

                                              Filesize

                                              264KB

                                              MD5

                                              f50f89a0a91564d0b8a211f8921aa7de

                                              SHA1

                                              112403a17dd69d5b9018b8cede023cb3b54eab7d

                                              SHA256

                                              b1e963d702392fb7224786e7d56d43973e9b9efd1b89c17814d7c558ffc0cdec

                                              SHA512

                                              bf8cda48cf1ec4e73f0dd1d4fa5562af1836120214edb74957430cd3e4a2783e801fa3f4ed2afb375257caeed4abe958265237d6e0aacf35a9ede7a2e8898d58

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

                                              Filesize

                                              359B

                                              MD5

                                              26dcbf330a454b398a58c2de751ce0e8

                                              SHA1

                                              42220317a5f078cf34ae0477ac6d8fd1eeeef5b5

                                              SHA256

                                              52517fb8fb6b25b479c79248a9bdd5b026c41739f8c8a1aa8439d9ca50cad216

                                              SHA512

                                              e752bdacde68c20c36ccfc472550cc76fb1ff6f7d10a235594479a9dc53b5f6f337d4de4876360d33d7637d94e8a926d2214a154b42b5508b93c38bd703e3244

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

                                              Filesize

                                              5KB

                                              MD5

                                              1f8c53854167e543341c1c6b2de26712

                                              SHA1

                                              f6073823cd7c3917a52f13a809c9fe44ba9d01de

                                              SHA256

                                              a63b1a656a807805f50f2cbb6d404c28e3dd11eb90fb7ebd5859f7e4669c01c2

                                              SHA512

                                              b46f3ecf4edb6f320f52021f7df65c4a33c27fb14d1850cdf1beb91f371c3c0723fb4313c1aa39442934b8adb2c69014e8fcf4223b9d2f2a0ec0536f783d38f6

                                            • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Sync Data\LevelDB\CURRENT

                                              Filesize

                                              16B

                                              MD5

                                              18e723571b00fb1694a3bad6c78e4054

                                              SHA1

                                              afcc0ef32d46fe59e0483f9a3c891d3034d12f32

                                              SHA256

                                              8af72f43857550b01eab1019335772b367a17a9884a7a759fdf4fe6f272b90aa

                                              SHA512

                                              43bb0af7d3984012d2d67ca6b71f0201e5b948e6fe26a899641c4c6f066c59906d468ddf7f1df5ea5fa33c2bc5ea8219c0f2c82e0a5c365ad7581b898a8859e2

                                            • memory/2736-0-0x000007FEF7DA0000-0x000007FEF7E7E000-memory.dmp

                                              Filesize

                                              888KB

                                            • memory/2736-1-0x000007FEF6E20000-0x000007FEF6EFE000-memory.dmp

                                              Filesize

                                              888KB

                                            • memory/2736-2-0x000007FEF7DA0000-0x000007FEF7E7E000-memory.dmp

                                              Filesize

                                              888KB

                                            • memory/2736-5-0x000007FEF6E20000-0x000007FEF6EFE000-memory.dmp

                                              Filesize

                                              888KB