Analysis

  • max time kernel
    65s
  • max time network
    67s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26/05/2023, 11:24

General

  • Target

    https://bs.serving-sys.com/Serving/adServer.bs?cn=brd&PluID=0&Pos=20&EyeblasterID=1086486580&clk=1&ctick=00484900&rtu=https%3A%2F%2Fmoderntimer.com%2Fnow%2Fauth%2Fsf_rand_string_lowercase6%2F%2F%2F%[email protected]

Score
5/10

Malware Config

Signatures

  • Drops file in System32 directory 2 IoCs
  • Checks processor information in registry 2 TTPs 3 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 5 IoCs
  • Modifies data under HKEY_USERS 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 26 IoCs
  • Suspicious use of SendNotifyMessage 24 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Program Files\Google\Chrome\Application\chrome.exe
    "C:\Program Files\Google\Chrome\Application\chrome.exe" "--simulate-outdated-no-au='Tue, 31 Dec 2099 23:59:59 GMT'" https://bs.serving-sys.com/Serving/adServer.bs?cn=brd&PluID=0&Pos=20&EyeblasterID=1086486580&clk=1&ctick=00484900&rtu=https%3A%2F%2Fmoderntimer.com%2Fnow%2Fauth%2Fsf_rand_string_lowercase6%2F%2F%2F%[email protected]
    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:1960
    • 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=0xfc,0x100,0x104,0xd8,0x108,0x7ffce86b9758,0x7ffce86b9768,0x7ffce86b9778
      2⤵
        PID:3148
      • 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=1804 --field-trial-handle=1820,i,14837691111287037134,4991563302821232333,131072 /prefetch:2
        2⤵
          PID:3316
        • 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=2184 --field-trial-handle=1820,i,14837691111287037134,4991563302821232333,131072 /prefetch:8
          2⤵
            PID:968
          • 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=2272 --field-trial-handle=1820,i,14837691111287037134,4991563302821232333,131072 /prefetch:8
            2⤵
              PID:2024
            • C:\Program Files\Google\Chrome\Application\chrome.exe
              "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --enable-chrome-cart --first-renderer-process --lang=en-US --device-scale-factor=1 --num-raster-threads=2 --enable-main-frame-before-activation --renderer-client-id=6 --mojo-platform-channel-handle=3136 --field-trial-handle=1820,i,14837691111287037134,4991563302821232333,131072 /prefetch:1
              2⤵
                PID:3904
              • C:\Program Files\Google\Chrome\Application\chrome.exe
                "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --enable-chrome-cart --lang=en-US --device-scale-factor=1 --num-raster-threads=2 --enable-main-frame-before-activation --renderer-client-id=5 --mojo-platform-channel-handle=3144 --field-trial-handle=1820,i,14837691111287037134,4991563302821232333,131072 /prefetch:1
                2⤵
                  PID:4220
                • C:\Program Files\Google\Chrome\Application\chrome.exe
                  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --enable-chrome-cart --disable-gpu-compositing --lang=en-US --device-scale-factor=1 --num-raster-threads=2 --enable-main-frame-before-activation --renderer-client-id=7 --mojo-platform-channel-handle=4864 --field-trial-handle=1820,i,14837691111287037134,4991563302821232333,131072 /prefetch:1
                  2⤵
                    PID:2552
                  • C:\Program Files\Google\Chrome\Application\chrome.exe
                    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --enable-chrome-cart --disable-gpu-compositing --lang=en-US --device-scale-factor=1 --num-raster-threads=2 --enable-main-frame-before-activation --renderer-client-id=8 --mojo-platform-channel-handle=3716 --field-trial-handle=1820,i,14837691111287037134,4991563302821232333,131072 /prefetch:1
                    2⤵
                      PID:4480
                    • 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=5024 --field-trial-handle=1820,i,14837691111287037134,4991563302821232333,131072 /prefetch:8
                      2⤵
                        PID:384
                      • 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=5108 --field-trial-handle=1820,i,14837691111287037134,4991563302821232333,131072 /prefetch:8
                        2⤵
                          PID:4076
                        • C:\Program Files\Google\Chrome\Application\chrome.exe
                          "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --enable-chrome-cart --disable-gpu-compositing --lang=en-US --device-scale-factor=1 --num-raster-threads=2 --enable-main-frame-before-activation --renderer-client-id=11 --mojo-platform-channel-handle=5056 --field-trial-handle=1820,i,14837691111287037134,4991563302821232333,131072 /prefetch:1
                          2⤵
                            PID:3980
                          • C:\Program Files\Google\Chrome\Application\chrome.exe
                            "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --enable-chrome-cart --disable-gpu-compositing --lang=en-US --device-scale-factor=1 --num-raster-threads=2 --enable-main-frame-before-activation --renderer-client-id=12 --mojo-platform-channel-handle=5180 --field-trial-handle=1820,i,14837691111287037134,4991563302821232333,131072 /prefetch:1
                            2⤵
                              PID:2800
                            • C:\Program Files\Google\Chrome\Application\chrome.exe
                              "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --enable-chrome-cart --disable-gpu-compositing --lang=en-US --device-scale-factor=1 --num-raster-threads=2 --enable-main-frame-before-activation --renderer-client-id=13 --mojo-platform-channel-handle=5144 --field-trial-handle=1820,i,14837691111287037134,4991563302821232333,131072 /prefetch:1
                              2⤵
                                PID:4304
                            • C:\Windows\System32\svchost.exe
                              C:\Windows\System32\svchost.exe -k netsvcs -p
                              1⤵
                              • Drops file in System32 directory
                              • Checks processor information in registry
                              • Enumerates system info in registry
                              PID:1072
                            • 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:4764

                              Network

                                    MITRE ATT&CK Enterprise v6

                                    Replay Monitor

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                                    Downloads

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

                                      Filesize

                                      216B

                                      MD5

                                      9d84fced9d773fd8adffac544182ab48

                                      SHA1

                                      5653e7b78a3188fbc72e12cd81858cb92c0fddc4

                                      SHA256

                                      a340f12491c29ae67c19769e38463978681068ed0551e0a84622af100aff4a57

                                      SHA512

                                      c2aca3e5b5a330eca6d453e484635b98bb8c0ad8ebfd0388c36c6ae639904dac35cef71027770e54fc1e0f9adb30cfcdc8217e189200bb25611df304b9d1fe94

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

                                      Filesize

                                      538B

                                      MD5

                                      4e891ad51a961298fc18628b128f416b

                                      SHA1

                                      4e734550f9e26593cc8782bdb61cdba468c9f077

                                      SHA256

                                      758648b662df9e10cc13c678836ba3f4f60f64877abbd248c729d2aa7f51e4c3

                                      SHA512

                                      733458c346d81129a711b8640847667f2c14911f4a3bbb22f789fd119996b4b46523a60291c20e8f0fee09b818cd9b79a3163c6ac74cfdbc063baea45ec782f8

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

                                      Filesize

                                      5KB

                                      MD5

                                      acc75d2ccc8aa37453332532d09828be

                                      SHA1

                                      b6790f039f242247e1ced5acfad62afe7e3cf7c9

                                      SHA256

                                      b0db0d4d67bc43adf6fed8c2a091a9a4fc27f51189d408e8a0916ac61b06acbc

                                      SHA512

                                      4ab3cfdb229a493c3e75f7345782df305b251262b79176f8a261056c5aa9914ccbed00aed97fcbc88b95711f3aa6c8a53976bb44fea8e0c652a85c5870c3ab0a

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

                                      Filesize

                                      4KB

                                      MD5

                                      4466f943383f3e1f703ee6759af313c9

                                      SHA1

                                      55a3fc3d520a3eea4afd3f11ad2b8e742ccd15bc

                                      SHA256

                                      2f1ea185e3cd9224178d14399088a97ac83574f20eb6192bddf2a88159ee084d

                                      SHA512

                                      1a7f6cc287719bae0ab1db6cade2e92c2cbcb8073176ca41c1a670872f906c420e4c46780330be4913090269a5d8bfd3a20bddde5676564b10c9780582ff5e6c

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

                                      Filesize

                                      153KB

                                      MD5

                                      d3a7809a10dec9fb1a588b93a4631e9e

                                      SHA1

                                      e7e15e82e5d75644cac65c036eba4255635e1706

                                      SHA256

                                      9debdbb93fb782c9e7c71ce3207b72becf73272295b13b677342d7c04759c193

                                      SHA512

                                      3b2e87d19cdd1de634bf007066917e6ddadca59f32fcb554cd1c7ab64a6c58f97128548689415516f5d4ce07e2c22151f3dc5279e356b80a133c234d4e78d03b

                                    • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Module Info Cache

                                      Filesize

                                      103KB

                                      MD5

                                      587c390ad4258120d8558f31ee76d48f

                                      SHA1

                                      42cb625ad6b7bcc13c8ab5834a1432e86dcb284c

                                      SHA256

                                      fe22ce98615d34678e4d4aec0c66a96d40e18701ed802efd875d75cfa48f6121

                                      SHA512

                                      d42484f3ff6d04751cf6a1f41c03e4975741ad311e0c2358892bb04db5704beaf1cb77c5b912367b3aa075da3bd540a92e5623e4465ec3c31fba67dc7200c6dc

                                    • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Module Info Cache~RFe573393.TMP

                                      Filesize

                                      101KB

                                      MD5

                                      0ad30e1b227deae0614e5631cf236595

                                      SHA1

                                      41573f8bd4ef44c371a4ef46cde2808d5c263c52

                                      SHA256

                                      a5f0d8948afe208c8f57c7f5b6dcabb4531af96f4f5a076c5ae39d897e21649a

                                      SHA512

                                      9ebc66014b2e1b4766559a7c2314bdd75fe68c9578647b3bda3a7ee608eee5c6cedadb4dcd06c42636013f7f5afe7ee11e1da6cb479637654f9804fe505221f2