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Analysis

  • max time kernel
    51s
  • max time network
    42s
  • platform
    windows10-1703_x64
  • resource
    win10-20240404-en
  • resource tags

    arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
  • submitted
    10/07/2024, 20:20

General

  • Target

    http://stempowered.com

Score
4/10

Malware Config

Signatures

  • Drops file in Windows directory 4 IoCs
  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies Internet Explorer settings 1 TTPs 2 IoCs
  • Modifies data under HKEY_USERS 2 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: MapViewOfSection 4 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 50 IoCs
  • Suspicious use of FindShellTrayWindow 26 IoCs
  • Suspicious use of SendNotifyMessage 24 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Windows\system32\LaunchWinApp.exe
    "C:\Windows\system32\LaunchWinApp.exe" "http://stempowered.com"
    1⤵
      PID:748
    • C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdge.exe
      "C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdge.exe" -ServerName:MicrosoftEdge.AppXdnhjhccw3zf0j06tkg3jtqr00qdm0khc.mca
      1⤵
      • Drops file in Windows directory
      • Modifies registry class
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:3884
    • C:\Windows\system32\browser_broker.exe
      C:\Windows\system32\browser_broker.exe -Embedding
      1⤵
      • Modifies Internet Explorer settings
      PID:168
    • C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe
      "C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe" -ServerName:ContentProcess.AppX6z3cwk4fvgady6zya12j1cw28d228a7k.mca
      1⤵
      • Modifies registry class
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2108
    • C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe
      "C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe" -ServerName:ContentProcess.AppX6z3cwk4fvgady6zya12j1cw28d228a7k.mca
      1⤵
      • Drops file in Windows directory
      • Modifies Internet Explorer settings
      • Modifies registry class
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:5016
    • C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe
      "C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe" -ServerName:ContentProcess.AppX6z3cwk4fvgady6zya12j1cw28d228a7k.mca
      1⤵
      • Drops file in Windows directory
      • Modifies registry class
      PID:3428
    • C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe
      "C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe" -ServerName:ContentProcess.AppX6z3cwk4fvgady6zya12j1cw28d228a7k.mca
      1⤵
      • Modifies registry class
      • Suspicious use of AdjustPrivilegeToken
      PID:4192
    • C:\Program Files\Google\Chrome\Application\chrome.exe
      "C:\Program Files\Google\Chrome\Application\chrome.exe"
      1⤵
      • 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:988
      • 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=0xcc,0xd0,0xd4,0xa8,0xd8,0x7ff993c09758,0x7ff993c09768,0x7ff993c09778
        2⤵
          PID:1292
        • 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=1532 --field-trial-handle=1856,i,824548355165215849,5761909956984761853,131072 /prefetch:2
          2⤵
            PID:2576
          • 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=1804 --field-trial-handle=1856,i,824548355165215849,5761909956984761853,131072 /prefetch:8
            2⤵
              PID:4612
            • 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=2088 --field-trial-handle=1856,i,824548355165215849,5761909956984761853,131072 /prefetch:8
              2⤵
                PID:2936
              • 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=2848 --field-trial-handle=1856,i,824548355165215849,5761909956984761853,131072 /prefetch:1
                2⤵
                  PID:4504
                • 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=2856 --field-trial-handle=1856,i,824548355165215849,5761909956984761853,131072 /prefetch:1
                  2⤵
                    PID:2884
                  • 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=7 --mojo-platform-channel-handle=4468 --field-trial-handle=1856,i,824548355165215849,5761909956984761853,131072 /prefetch:1
                    2⤵
                      PID:1920
                    • 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 --mojo-platform-channel-handle=4876 --field-trial-handle=1856,i,824548355165215849,5761909956984761853,131072 /prefetch:8
                      2⤵
                        PID:312
                      • 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=5004 --field-trial-handle=1856,i,824548355165215849,5761909956984761853,131072 /prefetch:8
                        2⤵
                          PID:4356
                        • 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=4864 --field-trial-handle=1856,i,824548355165215849,5761909956984761853,131072 /prefetch:8
                          2⤵
                            PID:2536
                          • 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=11 --mojo-platform-channel-handle=3880 --field-trial-handle=1856,i,824548355165215849,5761909956984761853,131072 /prefetch:1
                            2⤵
                              PID:1836
                            • 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=12 --mojo-platform-channel-handle=5116 --field-trial-handle=1856,i,824548355165215849,5761909956984761853,131072 /prefetch:1
                              2⤵
                                PID:5036
                            • 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:4596

                              Network

                              MITRE ATT&CK Enterprise v15

                              Replay Monitor

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                              Downloads

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

                                Filesize

                                369B

                                MD5

                                ce1d1fd70c7aa6d82be30e890d56b34f

                                SHA1

                                d1d263684399d01e2e626446cf0b30c632c6c075

                                SHA256

                                f063dc2e4df3c4c9a3e9953a0d01109eaf256093cfa56bad8b6ebda41e64038a

                                SHA512

                                bb295349c5f9645f125892635d8a68435435b0b3285a544e50d63b8a878ec4153e05a579fd4a7d3ec0e521c8d4a67fd9a3bc691cf8b699d77b4bd07fc3d1c508

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

                                Filesize

                                6KB

                                MD5

                                84cdc3b83be33813a156e693c8ffab8d

                                SHA1

                                5f33d69f8cda3a3fc99bfb85fa14861290a42986

                                SHA256

                                6ca8920a771465ec651f1ac344f238ef0dff3b665b5162847a966ccd3a04cd65

                                SHA512

                                e29ca378b91b268163c4a15d7da45063af109599ca826fca797636b87ca27c27d501b1db7e709207d858407fb31ee79a2801c9dba3b7e09565607214f580141f

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

                                Filesize

                                6KB

                                MD5

                                f84db5c272c43eb74bf9cc13b0c072ef

                                SHA1

                                2fa2c5ad0aecb72a0019b6288ee70eea53261ee0

                                SHA256

                                d2320f67cdcfee66342dcf42b3b1b5362bc07c8575dec64d05e4987177225341

                                SHA512

                                cff51f5a7ef4ee8254879573b944b73769b0399a4346fcd69221a2e2e305e0517c78d0e40edeeff017f70da04730fd1d8f733c687b0ae4949bde49ae289dd4a6

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

                                Filesize

                                12KB

                                MD5

                                2b0649412aabd556a1e672ab88f4df3e

                                SHA1

                                1aa4afd4ef2543d67d2df7304c34fcd08748ca13

                                SHA256

                                7361b7ed816af8fcbc7c1398c3a62b496c4fb21f2548783150996548c77e5efe

                                SHA512

                                66596002696dec6c7c0d4d5ce1d8c12c79f7db65f8d66b6ef2d030f5d997d35f31e53367c5a48bd4570be440eb3ebdc8031e1e22580803e73c005761455e5f84

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

                                Filesize

                                286KB

                                MD5

                                e2d9229d482a5921220637aee3b657a3

                                SHA1

                                326b2103767bb59930800b9d9f00dc31f420643f

                                SHA256

                                82caf3af73e7e02484aa54ff7df1bfe4ddbf59f6d9b2b02dce369b523d58ec97

                                SHA512

                                2d0774e904592dc2caf611aef0d32d564d44e23ef88de6fddc0f5d75ec4865d3effdc4fda459f8ad2e6508f9194590e4a8cf579b609ebc689cb2eb87fb640820

                              • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\persisted_first_party_sets.json

                                Filesize

                                2B

                                MD5

                                99914b932bd37a50b983c5e7c90ae93b

                                SHA1

                                bf21a9e8fbc5a3846fb05b4fa0859e0917b2202f

                                SHA256

                                44136fa355b3678a1146ad16f7e8649e94fb4fc21fe77e8310c060f61caaff8a

                                SHA512

                                27c74670adb75075fad058d5ceaf7b20c4e7786c83bae8a32f626f9782af34c9a33c2046ef60fd2a7878d378e29fec851806bbd9a67878f3a9f1cda4830763fd

                              • C:\Users\Admin\AppData\Local\Packages\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\AC\Temp\~DFFD4E4925E5B39BEC.TMP

                                Filesize

                                16KB

                                MD5

                                b7b55925634c48220a39f4a177ae4718

                                SHA1

                                740bb045523fe0375b180ff63fc6c991dc757ce0

                                SHA256

                                b79b41888035b0e6f14a03529e6c52e2b0ec37b5fe43923badd77232e9a6bc8f

                                SHA512

                                914d055e28f6508eba8b456bf34be502f8eed43baf6b8715d7bbfec6c36c22566c59569e048b2e2d8cb45cae26abaae3f93b51bb3392e582b6df856888bde440

                              • memory/3428-53-0x0000024DE3DA0000-0x0000024DE3DA2000-memory.dmp

                                Filesize

                                8KB

                              • memory/3428-73-0x0000024DF4550000-0x0000024DF4650000-memory.dmp

                                Filesize

                                1024KB

                              • memory/3428-86-0x0000024DF6410000-0x0000024DF6412000-memory.dmp

                                Filesize

                                8KB

                              • memory/3428-84-0x0000024DF63B0000-0x0000024DF63B2000-memory.dmp

                                Filesize

                                8KB

                              • memory/3428-82-0x0000024DF6390000-0x0000024DF6392000-memory.dmp

                                Filesize

                                8KB

                              • memory/3428-93-0x0000024DF6460000-0x0000024DF6462000-memory.dmp

                                Filesize

                                8KB

                              • memory/3428-51-0x0000024DE4100000-0x0000024DE4200000-memory.dmp

                                Filesize

                                1024KB

                              • memory/3428-58-0x0000024DE3DF0000-0x0000024DE3DF2000-memory.dmp

                                Filesize

                                8KB

                              • memory/3428-56-0x0000024DE3DD0000-0x0000024DE3DD2000-memory.dmp

                                Filesize

                                8KB

                              • memory/3428-80-0x0000024DF6370000-0x0000024DF6372000-memory.dmp

                                Filesize

                                8KB

                              • memory/3428-64-0x0000024DE3F80000-0x0000024DE3FA0000-memory.dmp

                                Filesize

                                128KB

                              • memory/3884-0-0x000002A2B2720000-0x000002A2B2730000-memory.dmp

                                Filesize

                                64KB

                              • memory/3884-155-0x000002A2AFBA0000-0x000002A2AFBA1000-memory.dmp

                                Filesize

                                4KB

                              • memory/3884-151-0x000002A2AFBE0000-0x000002A2AFBE1000-memory.dmp

                                Filesize

                                4KB

                              • memory/3884-148-0x000002A2AFC40000-0x000002A2AFC42000-memory.dmp

                                Filesize

                                8KB

                              • memory/3884-35-0x000002A2AFBB0000-0x000002A2AFBB2000-memory.dmp

                                Filesize

                                8KB

                              • memory/3884-16-0x000002A2B2820000-0x000002A2B2830000-memory.dmp

                                Filesize

                                64KB