Analysis

  • max time kernel
    488s
  • max time network
    605s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14-01-2024 14:31

General

  • Target

    Nezur.exe

  • Size

    14.7MB

  • MD5

    b69e41217fcc23bec762fd3aa79b95bb

  • SHA1

    ee04c6bb804f89a547079ce5b4abba9ad4b5c179

  • SHA256

    03902be743ffcb706c54dc5d972aa2178c4c762213afd69b79ecdf2fcc4e1518

  • SHA512

    39c45ca81f284cc76d64dd66fb99bd9d0c713d446e741c5e8dcde94bfd1bf0a71f3e6031fdf877fd815f06a9f84032e79939bf50b5e9bf8f5ba0555763e3aa5b

  • SSDEEP

    98304:UiHbalWeWP84rAJzM0gLIRfyC7egWJT56w65z/vA/OcOQi8ur+xMsnKMCFJlIsz9:TOM8Wb0guheg656w6Vr8ucnmtz9

Score
3/10

Malware Config

Signatures

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 7 IoCs
  • Suspicious use of FindShellTrayWindow 25 IoCs
  • Suspicious use of SendNotifyMessage 24 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Nezur.exe
    "C:\Users\Admin\AppData\Local\Temp\Nezur.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1424
    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --single-argument https://aka.ms/dotnet-core-applaunch?framework=Microsoft.NETCore.App&framework_version=7.0.0&arch=x64&rid=win-x64&os=win10&gui=true
      2⤵
      • Enumerates system info in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:4880
      • 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,0x100,0x104,0xd8,0x108,0x7ffc867546f8,0x7ffc86754708,0x7ffc86754718
        3⤵
          PID:4696
        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=1832,7514320848418638894,8941839344066474516,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2188 /prefetch:2
          3⤵
            PID:3096
          • 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=1832,7514320848418638894,8941839344066474516,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2240 /prefetch:3
            3⤵
            • Suspicious behavior: EnumeratesProcesses
            PID:3244
          • 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=1832,7514320848418638894,8941839344066474516,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2864 /prefetch:8
            3⤵
              PID:4264
            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1832,7514320848418638894,8941839344066474516,131072 --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=3388 /prefetch:1
              3⤵
                PID:4924
              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1832,7514320848418638894,8941839344066474516,131072 --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=3396 /prefetch:1
                3⤵
                  PID:1776
                • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1832,7514320848418638894,8941839344066474516,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=7 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=4652 /prefetch:1
                  3⤵
                    PID:1404
                  • 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=1832,7514320848418638894,8941839344066474516,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=4940 /prefetch:8
                    3⤵
                      PID:408
                    • 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=1832,7514320848418638894,8941839344066474516,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=4940 /prefetch:8
                      3⤵
                      • Suspicious behavior: EnumeratesProcesses
                      PID:3148
                    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1832,7514320848418638894,8941839344066474516,131072 --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=10 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=4756 /prefetch:1
                      3⤵
                        PID:1844
                      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1832,7514320848418638894,8941839344066474516,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=9 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5212 /prefetch:1
                        3⤵
                          PID:844
                        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1832,7514320848418638894,8941839344066474516,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=11 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=4580 /prefetch:1
                          3⤵
                            PID:2008
                          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1832,7514320848418638894,8941839344066474516,131072 --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=12 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5100 /prefetch:1
                            3⤵
                              PID:4812
                            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=1832,7514320848418638894,8941839344066474516,131072 --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=5432 /prefetch:2
                              3⤵
                              • Suspicious behavior: EnumeratesProcesses
                              PID:3196
                        • C:\Windows\System32\CompPkgSrv.exe
                          C:\Windows\System32\CompPkgSrv.exe -Embedding
                          1⤵
                            PID:844
                          • C:\Windows\System32\CompPkgSrv.exe
                            C:\Windows\System32\CompPkgSrv.exe -Embedding
                            1⤵
                              PID:2152

                            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

                              011193d03a2492ca44f9a78bdfb8caa5

                              SHA1

                              71c9ead344657b55b635898851385b5de45c7604

                              SHA256

                              d21f642fdbc0f194081ffdd6a3d51b2781daef229ae6ba54c336156825b247a0

                              SHA512

                              239c7d603721c694b7902996ba576c9d56acddca4e2e7bbe500039d26d0c6edafbbdc2d9f326f01d71e162872d6ff3247366481828e0659703507878ed3dd210

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

                              Filesize

                              111B

                              MD5

                              285252a2f6327d41eab203dc2f402c67

                              SHA1

                              acedb7ba5fbc3ce914a8bf386a6f72ca7baa33c6

                              SHA256

                              5dfc321417fc31359f23320ea68014ebfd793c5bbed55f77dab4180bbd4a2026

                              SHA512

                              11ce7cb484fee66894e63c31db0d6b7ef66ad0327d4e7e2eb85f3bcc2e836a3a522c68d681e84542e471e54f765e091efe1ee4065641b0299b15613eb32dcc0d

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

                              Filesize

                              188B

                              MD5

                              4c68fa9da4031e4f6bce89afb698f67a

                              SHA1

                              05253b06c10ab70558beac773286ef6c56292e6c

                              SHA256

                              9556882e8bef920eb50efe55b57afacc70c710e8ab808eb95b04e8d4b88eed2e

                              SHA512

                              e750014f86f1ff47103a585b912659913f4b40c284444747c770d3ca870cbd2ca1f249406b815c518c59d5b6f95ff3761bd56912ec799a22170ca0f7aa9a7ce1

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

                              Filesize

                              5KB

                              MD5

                              0c9a047355832884d63dcdede50ede28

                              SHA1

                              904a603c5bd6ade1fa16fe58c9495678d5d78ce4

                              SHA256

                              abcba98a43bbbade69540e109bbec56738a3570a804e2713d388350e82bb716d

                              SHA512

                              3412a7530d3f8a14e9ad9d717ee69c84686e4e95894ac024ed0cf2e1b3c10fe7224db00559cf205dac43657f6888e10b5797e56a6080782fd2426264be977a5e

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

                              Filesize

                              6KB

                              MD5

                              95e5c95d2cebadb421eff379f5dab83c

                              SHA1

                              e8456e4f01c577c757e3d9e40fe32387f543557f

                              SHA256

                              be9c0882e47ded61f8a4dabd865a3d8562884b407017c2a690beecfd5af4257f

                              SHA512

                              15c4b4eeeffd42a9005e02d16f2294980ab047ca643a7bf85e9aa57a3a1fd732896fdcbe2944cccf7340491bf8c879b49e7f0dc7583b2029a164171b5ef6e83e

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

                              Filesize

                              6KB

                              MD5

                              d44610133ff0c762a13772c3e07141a3

                              SHA1

                              b49ecb4dc79f001f61bfd7dbaf28b5bf0e8e4530

                              SHA256

                              fb872b9472d51dd876e765d67712d94d4de782fbb2d807c85b1026b7c22243a1

                              SHA512

                              e7a5b2f26b7da3e34551e1ee9d54cdc265e2a6847f000e082389ff7f5b9267e8c74801aad73779634a7bba52841904a5ce995725880983d8484d7a69403432c8

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

                              Filesize

                              5KB

                              MD5

                              6efd3bec11f5c0b6d67238dda535ef11

                              SHA1

                              52b55467719328bb9a3625bae3297af8effe34b7

                              SHA256

                              69d85abd8ba3ebd8fc05fad23946d85dd8f86657bdc4a36d0887fe666aee64ab

                              SHA512

                              c50542147fb66e734c0cef0aff1227ee4d52a8f3efa5b85efef365a49a0516c27f65672ef1e69e6d3c7beb58c749dd0e586b5c29847109cefc8b72f143fdbeec

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

                              Filesize

                              24KB

                              MD5

                              f5b764fa779a5880b1fbe26496fe2448

                              SHA1

                              aa46339e9208e7218fb66b15e62324eb1c0722e8

                              SHA256

                              97de05bd79a3fd624c0d06f4cb63c244b20a035308ab249a5ef3e503a9338f3d

                              SHA512

                              5bfc27e6164bcd0e42cd9aec04ba6bf3a82113ba4ad85aa5d34a550266e20ea6a6e55550ae669af4c2091319e505e1309d27b7c50269c157da0f004d246fe745

                            • 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

                              aca83048dc19dd2504d8015621560304

                              SHA1

                              8be18d5e36cede3e27f2e77d76f1197a94bde224

                              SHA256

                              0b482ba54765caeb11dbd01e5ae4604d5004871fd2fb96ae062c3e625d181e0c

                              SHA512

                              1df6c7910182b15914a408d50052be0789797f768ed1d3200683d270159d07378a68361eb0d7e2d8a9db190a63d5c514b2f6d6792466d3b08d82496e740265ce

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

                              Filesize

                              11KB

                              MD5

                              645b0f56c90135e0d7f874fd571bbc30

                              SHA1

                              383a137b3ff06e74851b2b88882a34ca75497a54

                              SHA256

                              4c99465e3a23519bfac498fb69846a61ff0da24ff092f205db4bacb138c34048

                              SHA512

                              67452fff3bd027d7ae54a74383bc800b4227b34394663ae58bc396c9cb335eebd1c60233d1fa4e10eb8dd358e1e5546cdfaa0864def5efc6a34ef9cf9ba7215c