Analysis

  • max time kernel
    58s
  • max time network
    64s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231023-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231023-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06/11/2023, 16:15

General

  • Target

    https://github.com/l4tt/uwp-update-bypass/releases/tag/1.5

Score
8/10

Malware Config

Signatures

  • Downloads MZ/PE file
  • Executes dropped EXE 1 IoCs
  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies data under HKEY_USERS 2 IoCs
  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 34 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Files\Google\Chrome\Application\chrome.exe" --disable-background-networking --disable-component-update --simulate-outdated-no-au='Tue, 31 Dec 2099 23:59:59 GMT' --single-argument https://github.com/l4tt/uwp-update-bypass/releases/tag/1.5
    1⤵
    • Enumerates system info in registry
    • Modifies data under HKEY_USERS
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:4356
    • 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,0x100,0x104,0xd8,0x108,0x7fffb2f19758,0x7fffb2f19768,0x7fffb2f19778
      2⤵
        PID:988
      • 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=1728 --field-trial-handle=1872,i,9789076006582150676,17995930520039032308,131072 /prefetch:2
        2⤵
          PID:2456
        • 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=2108 --field-trial-handle=1872,i,9789076006582150676,17995930520039032308,131072 /prefetch:8
          2⤵
            PID:3628
          • 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=2232 --field-trial-handle=1872,i,9789076006582150676,17995930520039032308,131072 /prefetch:8
            2⤵
              PID:3436
            • 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=4 --enable-main-frame-before-activation --renderer-client-id=5 --mojo-platform-channel-handle=3124 --field-trial-handle=1872,i,9789076006582150676,17995930520039032308,131072 /prefetch:1
              2⤵
                PID:4604
              • 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=4 --enable-main-frame-before-activation --renderer-client-id=6 --mojo-platform-channel-handle=3096 --field-trial-handle=1872,i,9789076006582150676,17995930520039032308,131072 /prefetch:1
                2⤵
                  PID:3856
                • 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=4804 --field-trial-handle=1872,i,9789076006582150676,17995930520039032308,131072 /prefetch:8
                  2⤵
                    PID:2728
                  • 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=4908 --field-trial-handle=1872,i,9789076006582150676,17995930520039032308,131072 /prefetch:8
                    2⤵
                      PID:652
                    • C:\Program Files\Google\Chrome\Application\chrome.exe
                      "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.UtilReadIcon --lang=en-US --service-sandbox-type=icon_reader --mojo-platform-channel-handle=5184 --field-trial-handle=1872,i,9789076006582150676,17995930520039032308,131072 /prefetch:8
                      2⤵
                        PID:864
                      • C:\Program Files\Google\Chrome\Application\chrome.exe
                        "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.UtilReadIcon --lang=en-US --service-sandbox-type=icon_reader --mojo-platform-channel-handle=5128 --field-trial-handle=1872,i,9789076006582150676,17995930520039032308,131072 /prefetch:8
                        2⤵
                          PID:5080
                        • C:\Program Files\Google\Chrome\Application\chrome.exe
                          "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=quarantine.mojom.Quarantine --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5208 --field-trial-handle=1872,i,9789076006582150676,17995930520039032308,131072 /prefetch:8
                          2⤵
                            PID:5184
                          • C:\Program Files\Google\Chrome\Application\chrome.exe
                            "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.UtilReadIcon --lang=en-US --service-sandbox-type=icon_reader --mojo-platform-channel-handle=5180 --field-trial-handle=1872,i,9789076006582150676,17995930520039032308,131072 /prefetch:8
                            2⤵
                              PID:5312
                            • C:\Program Files\Google\Chrome\Application\chrome.exe
                              "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.UtilReadIcon --lang=en-US --service-sandbox-type=icon_reader --mojo-platform-channel-handle=5048 --field-trial-handle=1872,i,9789076006582150676,17995930520039032308,131072 /prefetch:8
                              2⤵
                                PID:5304
                              • 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=4 --enable-main-frame-before-activation --renderer-client-id=14 --mojo-platform-channel-handle=5428 --field-trial-handle=1872,i,9789076006582150676,17995930520039032308,131072 /prefetch:1
                                2⤵
                                  PID:6112
                                • 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=4 --enable-main-frame-before-activation --renderer-client-id=15 --mojo-platform-channel-handle=4940 --field-trial-handle=1872,i,9789076006582150676,17995930520039032308,131072 /prefetch:1
                                  2⤵
                                    PID:4876
                                  • 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=5252 --field-trial-handle=1872,i,9789076006582150676,17995930520039032308,131072 /prefetch:8
                                    2⤵
                                      PID:5192
                                    • 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=5788 --field-trial-handle=1872,i,9789076006582150676,17995930520039032308,131072 /prefetch:8
                                      2⤵
                                        PID:5276
                                    • 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:1348
                                      • C:\Windows\System32\rundll32.exe
                                        C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
                                        1⤵
                                          PID:5696
                                        • C:\Users\Admin\Downloads\Fluster.Installer.exe
                                          "C:\Users\Admin\Downloads\Fluster.Installer.exe"
                                          1⤵
                                          • Executes dropped EXE
                                          PID:5888
                                          • C:\Windows\system32\cmd.exe
                                            C:\Windows\system32\cmd.exe /c pause
                                            2⤵
                                              PID:6000

                                          Network

                                                MITRE ATT&CK Enterprise v15

                                                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

                                                  1KB

                                                  MD5

                                                  28a2378f038fb1a0e57522d503fd7e76

                                                  SHA1

                                                  6d8310e7437b397bb5f41485a9bea563b95e7707

                                                  SHA256

                                                  4e5b7835b63eaf92ae591b58014586989dfdee3ee57ab9156cb1f350cdccd731

                                                  SHA512

                                                  1de0780b75d31203f5b1d217675ff1e43e6f2c8af62528a7ad09fed583f091d3a9b263ead6627c022c95474e01def76091bdfd8c7f83e877fe992eeb44217687

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

                                                  Filesize

                                                  1KB

                                                  MD5

                                                  e6f6ccd0013d90435ca2168e9aef3f22

                                                  SHA1

                                                  1ee5a54f371e239660ea902b05c8899b2dc4a065

                                                  SHA256

                                                  48b49dc582efbd9d38f9c4218db848e6196d011fec25be34be755c8e17ac6622

                                                  SHA512

                                                  e49715afbf474b56e33769223c346b6b4bc77c84d8e715bc70055b4cecd73b99f692560a058381f527ffb71b91bb0a58518e2bcdafa52b917940ee19d0ffc051

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

                                                  Filesize

                                                  1KB

                                                  MD5

                                                  afa1d1f71e8206f72f08b2b0fdf832f3

                                                  SHA1

                                                  f9edba655f793f088b59ed93874c1454bc043e2f

                                                  SHA256

                                                  c93ea9ac7bbd21ba02599c4ad06771241c33cdc5ff9b97265ebb05445eea2463

                                                  SHA512

                                                  878decd47c8fb5e88a72e24b43589e855f32e36d9186d222de743ba4263ab523b86ed38d241bf0ac69ff9f4cbb9ddffb75ff84db623c44588feefcdf27c6e6ec

                                                • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\bc439eb4-89ce-4fb4-9591-06bfa020c447.tmp

                                                  Filesize

                                                  1KB

                                                  MD5

                                                  39bd4cb4c6faf6e7ceeb7087b7260b2d

                                                  SHA1

                                                  8ae06dc3477e5f98ca5e09830aff415c1aeafc17

                                                  SHA256

                                                  b5d2c32e6e69a0faea7c79c75edfd8ca2635256758f5eacf6d5d4b64c7129621

                                                  SHA512

                                                  5ed16bf4257d57f16e30429b4d0ad056c949ff4fae4f3bf63f971e16a34aad2bdb310c4797be9dba26da5dfa790f02dcb7a2ccf0814932f78d410720d19b355b

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

                                                  Filesize

                                                  5KB

                                                  MD5

                                                  ebd969aef59829418921d5f665d921f6

                                                  SHA1

                                                  60b9a3e537c664f81bc190c5823dbbe64a8a88c7

                                                  SHA256

                                                  48fddd98be1836bb456291e5c3f632fde166d3443272b22a7bd9e917dc7908b2

                                                  SHA512

                                                  a567ff6152aee63f1d43848d41ca545e12a84be69b5009fe4c88762e3aed9049e2039e974dd28ec50965c652a943e561dd68265b0369c4285898ba91549fc5ff

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

                                                  Filesize

                                                  5KB

                                                  MD5

                                                  d6e9919077d5b6a6ea2b602c029a80ce

                                                  SHA1

                                                  72f8c5510c8c4b6220e793f08be4974ae6d58335

                                                  SHA256

                                                  e7d8b83bce1ba40af5976f8a05239832344876a3b1e297e19d0628ef03a71c79

                                                  SHA512

                                                  72833a473ec8cb994bc35ed7b661c1329ae55d24e5fe73487992d334e84821cabfb18ab3d6567950d0392b659e90952d9d718aee28c13cf1550e57a11c9088dd

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

                                                  Filesize

                                                  5KB

                                                  MD5

                                                  7935d8641fa813bfb9fd6e0b5bda3f89

                                                  SHA1

                                                  467f5cf37cb7fde05ff112ce675ad806d05b3a4b

                                                  SHA256

                                                  ef9cd900d130e78b3adbdaa90a78cc8b55730862d44f9d0cc3a1f4c88d683b8a

                                                  SHA512

                                                  6de76f290967d0e00b885f1c08ea5ae5ffa872748a4663d1fb19c9f1fc8d9fe09244ede74f5cfe7c93bb7b89d223ec7073b1e6544fd9d7111e56c21819a2c721

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

                                                  Filesize

                                                  109KB

                                                  MD5

                                                  7a8b69cd347ca4a61d8703739087bb9b

                                                  SHA1

                                                  a9192ceda8d37163ad6aec48bd49cde448489177

                                                  SHA256

                                                  749b094ec22d644aa5f3772b700c6ce00efc3696d584fccb3bdc548577dc4d9a

                                                  SHA512

                                                  072571d74b9570c615ecaefbc4336eff34de1dfe2a2527298928e25c3a68fc5d0cd87d2872a362340cf08a56df4f8d9f0713460f970879d46fa01ee535df9ba0

                                                • 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\Downloads\Fluster.Installer.exe

                                                  Filesize

                                                  20KB

                                                  MD5

                                                  efa51e048948bf4d35a671d5e70d966d

                                                  SHA1

                                                  a34040e4f8600b2bf5da78c352827fa884ac4a66

                                                  SHA256

                                                  93418ec61e1f96a46e9f64b3858e3c8dd4f0530083d6eace8d691ef319d4535f

                                                  SHA512

                                                  1b3536ca4df42ef23e04276db52f0e46e68b189c45ac9b5e00fb16996e3a720eb0d4ebd93b8a434c518c8189c93fe47f263b914d4021c5893f0361e2afa18d9d

                                                • C:\Users\Admin\Downloads\Fluster.Installer.exe

                                                  Filesize

                                                  20KB

                                                  MD5

                                                  efa51e048948bf4d35a671d5e70d966d

                                                  SHA1

                                                  a34040e4f8600b2bf5da78c352827fa884ac4a66

                                                  SHA256

                                                  93418ec61e1f96a46e9f64b3858e3c8dd4f0530083d6eace8d691ef319d4535f

                                                  SHA512

                                                  1b3536ca4df42ef23e04276db52f0e46e68b189c45ac9b5e00fb16996e3a720eb0d4ebd93b8a434c518c8189c93fe47f263b914d4021c5893f0361e2afa18d9d

                                                • C:\Users\Admin\Downloads\Fluster.Installer.exe

                                                  Filesize

                                                  20KB

                                                  MD5

                                                  efa51e048948bf4d35a671d5e70d966d

                                                  SHA1

                                                  a34040e4f8600b2bf5da78c352827fa884ac4a66

                                                  SHA256

                                                  93418ec61e1f96a46e9f64b3858e3c8dd4f0530083d6eace8d691ef319d4535f

                                                  SHA512

                                                  1b3536ca4df42ef23e04276db52f0e46e68b189c45ac9b5e00fb16996e3a720eb0d4ebd93b8a434c518c8189c93fe47f263b914d4021c5893f0361e2afa18d9d