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Analysis

  • max time kernel
    145s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06/08/2024, 18:29

General

  • Target

    https://nezur.io/Nezur_External.zip

Score
3/10

Malware Config

Signatures

  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 12 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 7 IoCs
  • Suspicious use of FindShellTrayWindow 35 IoCs
  • Suspicious use of SendNotifyMessage 24 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --single-argument https://nezur.io/Nezur_External.zip
    1⤵
    • Enumerates system info in registry
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:3332
    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=crashpad-handler "--user-data-dir=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data" /prefetch:7 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad" "--metrics-dir=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data" --annotation=IsOfficialBuild=1 --annotation=channel= --annotation=chromium-version=92.0.4515.131 "--annotation=exe=C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --annotation=plat=Win64 "--annotation=prod=Microsoft Edge" --annotation=ver=92.0.902.67 --initial-client-data=0xfc,0x100,0x104,0xd8,0x108,0x7ff8f2b046f8,0x7ff8f2b04708,0x7ff8f2b04718
      2⤵
        PID:1468
      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2096,17993417748782044676,7447701700839644957,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2108 /prefetch:2
        2⤵
          PID:1084
        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --field-trial-handle=2096,17993417748782044676,7447701700839644957,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2336 /prefetch:3
          2⤵
          • Suspicious behavior: EnumeratesProcesses
          PID:1784
        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=storage.mojom.StorageService --field-trial-handle=2096,17993417748782044676,7447701700839644957,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2944 /prefetch:8
          2⤵
            PID:1152
          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2096,17993417748782044676,7447701700839644957,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=6 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3376 /prefetch:1
            2⤵
              PID:3144
            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2096,17993417748782044676,7447701700839644957,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3388 /prefetch:1
              2⤵
                PID:4032
              • C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe
                "C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe" --type=utility --utility-sub-type=winrt_app_id.mojom.WinrtAppIdService --field-trial-handle=2096,17993417748782044676,7447701700839644957,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5012 /prefetch:8
                2⤵
                  PID:1608
                • C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe
                  "C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe" --type=utility --utility-sub-type=winrt_app_id.mojom.WinrtAppIdService --field-trial-handle=2096,17993417748782044676,7447701700839644957,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5012 /prefetch:8
                  2⤵
                  • Suspicious behavior: EnumeratesProcesses
                  PID:4484
                • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2096,17993417748782044676,7447701700839644957,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=8 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5372 /prefetch:1
                  2⤵
                    PID:1668
                  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2096,17993417748782044676,7447701700839644957,131072 --lang=en-US --disable-client-side-phishing-detection --instant-process --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=9 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5352 /prefetch:1
                    2⤵
                      PID:1780
                    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=edge_collections.mojom.CollectionsDataManager --field-trial-handle=2096,17993417748782044676,7447701700839644957,131072 --lang=en-US --service-sandbox-type=collections --mojo-platform-channel-handle=5036 /prefetch:8
                      2⤵
                        PID:4020
                      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2096,17993417748782044676,7447701700839644957,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=12 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5640 /prefetch:1
                        2⤵
                          PID:4728
                        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=quarantine.mojom.Quarantine --field-trial-handle=2096,17993417748782044676,7447701700839644957,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5920 /prefetch:8
                          2⤵
                          • Suspicious behavior: EnumeratesProcesses
                          PID:5116
                        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2096,17993417748782044676,7447701700839644957,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=14 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5380 /prefetch:1
                          2⤵
                            PID:2684
                          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2096,17993417748782044676,7447701700839644957,131072 --lang=en-US --disable-client-side-phishing-detection --instant-process --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=15 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5160 /prefetch:1
                            2⤵
                              PID:5024
                            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2096,17993417748782044676,7447701700839644957,131072 --disable-gpu-sandbox --use-gl=disabled --gpu-vendor-id=4318 --gpu-device-id=140 --gpu-sub-system-id=0 --gpu-revision=0 --gpu-driver-version=10.0.19041.546 --gpu-preferences=UAAAAAAAAADoAAAQAAAAAAAAAAAAAAAAAABgAAAEAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2960 /prefetch:2
                              2⤵
                              • Suspicious behavior: EnumeratesProcesses
                              PID:1020
                          • C:\Windows\System32\CompPkgSrv.exe
                            C:\Windows\System32\CompPkgSrv.exe -Embedding
                            1⤵
                              PID:4704
                            • C:\Windows\System32\CompPkgSrv.exe
                              C:\Windows\System32\CompPkgSrv.exe -Embedding
                              1⤵
                                PID:4224
                              • C:\Windows\System32\rundll32.exe
                                C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
                                1⤵
                                  PID:2920
                                • C:\Users\Admin\AppData\Local\Temp\Temp1_Nezur_External.zip\Nezur.exe
                                  "C:\Users\Admin\AppData\Local\Temp\Temp1_Nezur_External.zip\Nezur.exe"
                                  1⤵
                                    PID:4840

                                  Network

                                  MITRE ATT&CK Enterprise v15

                                  Replay Monitor

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                                  Downloads

                                  • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad\settings.dat

                                    Filesize

                                    152B

                                    MD5

                                    ecf7ca53c80b5245e35839009d12f866

                                    SHA1

                                    a7af77cf31d410708ebd35a232a80bddfb0615bb

                                    SHA256

                                    882a513b71b26210ff251769b82b2c5d59a932f96d9ce606ca2fab6530a13687

                                    SHA512

                                    706722bd22ce27d854036b1b16e6a3cdb36284b66edc76238a79c2e11cee7d1307b121c898ad832eb1af73e4f08d991d64dc0bff529896ffb4ebe9b3dc381696

                                  • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad\settings.dat

                                    Filesize

                                    152B

                                    MD5

                                    4dd2754d1bea40445984d65abee82b21

                                    SHA1

                                    4b6a5658bae9a784a370a115fbb4a12e92bd3390

                                    SHA256

                                    183b8e82a0deaa83d04736553671cedb738adc909f483b3c5f822a0e6be7477d

                                    SHA512

                                    92d44ee372ad33f892b921efa6cabc78e91025e89f05a22830763217826fa98d51d55711f85c8970ac58abf9adc6c85cc40878032cd6d2589ab226cd099f99e1

                                  • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Network Persistent State

                                    Filesize

                                    176B

                                    MD5

                                    b4842c64d5c418bb281b8a615af42637

                                    SHA1

                                    c9ea9e43b556d3845cace368d399fee680072aad

                                    SHA256

                                    249e7ded88f72692553908222ba249bb09e7210270c626c08c2998ba059f3cea

                                    SHA512

                                    a12f30f1989f394eecb503c318805a253965610ade71ea670455fceed175a00b3cd35add6162d6f918bbea04ce545bfd7a0ee1081c4b253ee686ebc0d2b81d6f

                                  • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Preferences

                                    Filesize

                                    6KB

                                    MD5

                                    94ecc17d41f8f8de7d995c5364988410

                                    SHA1

                                    87034519549979af940aefe47138e98c23e12433

                                    SHA256

                                    530db6dfd63427848bae6957e446b7b0a6010431a720220f7a3b9c7786a5eab2

                                    SHA512

                                    c137bf4284f6de656fb6a432e38fdad80afcd4035de90d9105d6b3ef9ee81330e8b7d0c5cc10a143fcbf4fabe13c688aa8f2d4c6f035f13968665d6d7cdcba61

                                  • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Preferences

                                    Filesize

                                    6KB

                                    MD5

                                    4bf7c121a99a19b25db9d7bcfc7cb111

                                    SHA1

                                    1e2ecd23ec4388b2da2df14516994e6544af36d6

                                    SHA256

                                    ffb5d003ac3bba78c7a81dc62412c747830a815ddec0f2b8b0fe71fb7cfdaace

                                    SHA512

                                    1a5066234eaf588f4febccf30c8c7391bae61d8f24fb06a8c87640194d98d0265f58245c2ac7cf6bb152599e8aa2549f34d2aabd86cd7e3e7313a863b3bba884

                                  • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\data_reduction_proxy_leveldb\CURRENT

                                    Filesize

                                    16B

                                    MD5

                                    6752a1d65b201c13b62ea44016eb221f

                                    SHA1

                                    58ecf154d01a62233ed7fb494ace3c3d4ffce08b

                                    SHA256

                                    0861415cada612ea5834d56e2cf1055d3e63979b69eb71d32ae9ae394d8306cd

                                    SHA512

                                    9cfd838d3fb570b44fc3461623ab2296123404c6c8f576b0de0aabd9a6020840d4c9125eb679ed384170dbcaac2fa30dc7fa9ee5b77d6df7c344a0aa030e0389

                                  • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Local State

                                    Filesize

                                    11KB

                                    MD5

                                    751c7356323806c694863544572ca9c4

                                    SHA1

                                    126f95a606379d10839a371224ed394bd1722adc

                                    SHA256

                                    e28718ce6bf5a19883b50395c52ab431e3f1894f3ca01a1f5894eed1445c1741

                                    SHA512

                                    809f70ac38fb575f1f319a2b99f51e653da45ee7f99344d7909f5aa3343726d735882c08a09384e54ad569187fe2563c60335fa7a78fb79b54ed1c75d4c8f230

                                  • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Local State

                                    Filesize

                                    11KB

                                    MD5

                                    8553bb95efebd823c641813872f29aed

                                    SHA1

                                    d2f14cbd30775c59fa57adad7c1ed8d22407da58

                                    SHA256

                                    873c45442b73a958cd05f14503655bb2ce77bdffe6fd3890383af5b7cb5a5748

                                    SHA512

                                    45ba36169281a6334452b424767443041193c98a7ee088e5b895d5bc691c500095421909524a71fbf68e8cacbe6971639c280cc5f4824d2c5ce28c2d808952ae

                                  • C:\Users\Admin\Downloads\Nezur_External.zip

                                    Filesize

                                    12.2MB

                                    MD5

                                    115a3f77f569daaa14b892f8a649d5fd

                                    SHA1

                                    dbf0bb9f3e92abb356000a278aeeac82b1b3248d

                                    SHA256

                                    c69651cd40aeb5333614034c5aa6deb3f0af5360a19a6890091bf3058c6600cc

                                    SHA512

                                    0de2cae09664414b5fd083786ddfbd4babc340327a6d9d19983999e51bd8f168e4e9c3a184637a6853a22de5cbf6dce70a50d5486a526c8e36e9f1900a746d5c