Analysis

  • max time kernel
    600s
  • max time network
    490s
  • platform
    windows10-1703_x64
  • resource
    win10-20230220-en
  • resource tags

    arch:x64arch:x86image:win10-20230220-enlocale:en-usos:windows10-1703-x64system
  • submitted
    04-05-2023 11:11

General

  • Target

    https://bs.serving-sys.com/Serving/adServer.bs?cn=brd&PluID=0&Pos=20&EyeblasterID=1086486580&clk=1&ctick=00484900&rtu=http%3A%2F%2Fsherylcataluna.com%2Fsynch%2Fchrome%2Fsf_rand_string_lowercase6%2F%2F%2F%2F["https://bs.serving-sys.com/Serving/adServer.bs?cn=brd&PluID=0&Pos=20&EyeblasterID=1086486580&clk=1&ctick=00484900&rtu=http%3A%2F%2Fsherylcataluna.com%2Fsynch%2Fchrome%2Fsf_rand_string_lowercase6%2F%2F%2F%2FanVsaWUudGF0ZUBleHByZXNzaGVhbHRoY2FyZW53LmNvbQ=="]

Score
1/10

Malware Config

Signatures

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies data under HKEY_USERS 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 3 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

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    "C:\Program Files\Google\Chrome\Application\chrome.exe" "--simulate-outdated-no-au='Tue, 31 Dec 2099 23:59:59 GMT'"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=http%3A%2F%2Fsherylcataluna.com%2Fsynch%2Fchrome%2Fsf_rand_string_lowercase6%2F%2F%2F%2F["https://bs.serving-sys.com/Serving/adServer.bs?cn=brd&PluID=0&Pos=20&EyeblasterID=1086486580&clk=1&ctick=00484900&rtu=http%3A%2F%2Fsherylcataluna.com%2Fsynch%2Fchrome%2Fsf_rand_string_lowercase6%2F%2F%2F%2FanVsaWUudGF0ZUBleHByZXNzaGVhbHRoY2FyZW53LmNvbQ=="]
    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:1308
    • 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,0xd0,0xd4,0x44,0xd8,0x7ffd65f79758,0x7ffd65f79768,0x7ffd65f79778
      2⤵
        PID:4952
      • 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=1964 --field-trial-handle=1760,i,7780874024327822822,5717254243221892832,131072 /prefetch:8
        2⤵
          PID:1428
        • 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=1528 --field-trial-handle=1760,i,7780874024327822822,5717254243221892832,131072 /prefetch:2
          2⤵
            PID:364
          • 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=1960 --field-trial-handle=1760,i,7780874024327822822,5717254243221892832,131072 /prefetch:8
            2⤵
              PID:4776
            • 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=3052 --field-trial-handle=1760,i,7780874024327822822,5717254243221892832,131072 /prefetch:1
              2⤵
                PID:4112
              • 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=3064 --field-trial-handle=1760,i,7780874024327822822,5717254243221892832,131072 /prefetch:1
                2⤵
                  PID:4704
                • 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=7 --mojo-platform-channel-handle=4308 --field-trial-handle=1760,i,7780874024327822822,5717254243221892832,131072 /prefetch:1
                  2⤵
                    PID:3068
                  • 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=4772 --field-trial-handle=1760,i,7780874024327822822,5717254243221892832,131072 /prefetch:8
                    2⤵
                      PID:632
                    • 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=3672 --field-trial-handle=1760,i,7780874024327822822,5717254243221892832,131072 /prefetch:8
                      2⤵
                        PID:4488
                      • C:\Program Files\Google\Chrome\Application\chrome.exe
                        "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --disable-gpu-sandbox --use-gl=disabled --gpu-vendor-id=5140 --gpu-device-id=140 --gpu-sub-system-id=0 --gpu-revision=0 --gpu-driver-version=10.0.15063.0 --gpu-preferences=UAAAAAAAAADoAAAYAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAACQAAAAAAAAAAAAAAAAAAAAAAAAAEgAAAAAAAAASAAAAAAAAAAYAAAAAgAAABAAAAAAAAAAGAAAAAAAAAAQAAAAAAAAAAAAAAAOAAAAEAAAAAAAAAABAAAADgAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=1640 --field-trial-handle=1760,i,7780874024327822822,5717254243221892832,131072 /prefetch:2
                        2⤵
                        • Suspicious behavior: EnumeratesProcesses
                        PID:3212
                    • 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:4168

                      Network

                      MITRE ATT&CK Enterprise v6

                      Replay Monitor

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                      Downloads

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

                        Filesize

                        705B

                        MD5

                        484b38891de03e3614f96bbddce3e585

                        SHA1

                        18d40678efb570807c370274d93506ac5f65ec60

                        SHA256

                        8ea3a6b105b44e791e9c212f05d5df7c972f2ef53256e12b44b466d9bb962dfb

                        SHA512

                        a4cbe0d2c3c7563ecba35e2b33d715e252f68b7756d5c4f83b024155a8ea536061c9f742a04c1db4dc5c0ae7437e290282c4dd3158b9e0cf475c5761b49cdf61

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

                        Filesize

                        5KB

                        MD5

                        de583e2d7f6797b5335bbea714785163

                        SHA1

                        daea524f04e7767f0be75610ba6544f982a9b8e4

                        SHA256

                        17ac4ed7959a64609b578341f03ef7b395be193a8decb024e5bd0b8f233d4e6d

                        SHA512

                        fed710fcb92d69b56df4d0faf9dd87f0ff3cffb21eeaec2d2b90278263fb2a2ccc4f20ad546ec40be46543f81a88a167589fd42fda4902845ee049e18685b707

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

                        Filesize

                        5KB

                        MD5

                        b536067630da71af7abec755869bfa74

                        SHA1

                        8fa53282ac2c51455dece272a83ce4ca0977d795

                        SHA256

                        6b1ded90a78e5467142f5e2e9710d775eb83d3aa0effc7fd7e4b6b567f442a31

                        SHA512

                        7c21b12af246f4974dc7c6195d4e67cbb042331308c3cbd4b54235b07f999ef5aa698956a14cb7fff31ea426c420c4512db301316c0c39e726783e3c491cff25

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

                        Filesize

                        6KB

                        MD5

                        9e66697daa3a00478d172a41c6d05dae

                        SHA1

                        e64621bc82c4f21ba36eb144251d8c8a415e8728

                        SHA256

                        638f7be1c4dd0825b83e74b2e51d061399bb645bff523c1e7103688d50815b93

                        SHA512

                        5140885114e3a0339c4d160394d4f87ca71ffc940aed52fa0044c45ff418dada5439151480ad92cc22248bc7a0447f96bbb39b63fc4f9dbf63422c48596a57b2

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

                        Filesize

                        148KB

                        MD5

                        58f879bf8e853d7fd9258309b202c43c

                        SHA1

                        d3ed3cbfbd6ab1520f7b85dd9eaa557d8a9c7873

                        SHA256

                        70fcaa751bcf64dca9121f331f06a04df33989768e80aaa85cac023579d02ddc

                        SHA512

                        4f9cbea7a4fd56885640998c2e9132f99561e3c4f775bc3909f128f16a8f1d9f1b8f1f11835b7a0e2f642bb791d65bfcb27d8d1291954a66833dd87efc4c6e6d

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

                        Filesize

                        2B

                        MD5

                        99914b932bd37a50b983c5e7c90ae93b

                        SHA1

                        bf21a9e8fbc5a3846fb05b4fa0859e0917b2202f

                        SHA256

                        44136fa355b3678a1146ad16f7e8649e94fb4fc21fe77e8310c060f61caaff8a

                        SHA512

                        27c74670adb75075fad058d5ceaf7b20c4e7786c83bae8a32f626f9782af34c9a33c2046ef60fd2a7878d378e29fec851806bbd9a67878f3a9f1cda4830763fd