Analysis

  • max time kernel
    147s
  • max time network
    151s
  • platform
    windows11-21h2_x64
  • resource
    win11-20241007-en
  • resource tags

    arch:x64arch:x86image:win11-20241007-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    11-01-2025 15:57

General

  • Target

    wyvernunbanner.dll

  • Size

    292KB

  • MD5

    944729dfb3117fd4ead1f47846e02182

  • SHA1

    53c890f62851b9c14b4b2f2167a6c142f174580a

  • SHA256

    189dbe39de284a00399a039e54f781180a3bce47f1be75a1ba6e9c61724c3e46

  • SHA512

    5807ab8bb56659fabf1b85bc7513bec129524e1f67f465390f8219dd62026e3dfa61d36b0a08d301c8bcc50be3889663c4dab09ddd4616765abf522bbf403bed

  • SSDEEP

    6144:R9xMNNCYlnkv3uhLTfHxkBkqopYomvCyQOdN44Ngl5e4hHeYv:R7M/7+3+T/yBk9yQOb44Ngl84hx

Malware Config

Signatures

  • Detected potential entity reuse from brand STEAM.
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 9 IoCs
  • Suspicious use of FindShellTrayWindow 26 IoCs
  • Suspicious use of SendNotifyMessage 12 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\wyvernunbanner.dll,#1
    1⤵
      PID:4852
    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --profile-directory=Default
      1⤵
      • Enumerates system info in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:3144
      • 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=90.0.4430.212 "--annotation=exe=C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --annotation=plat=Win64 "--annotation=prod=Microsoft Edge" --annotation=ver=90.0.818.66 --initial-client-data=0x100,0x104,0x108,0xdc,0x10c,0x7ffbc3383cb8,0x7ffbc3383cc8,0x7ffbc3383cd8
        2⤵
          PID:3228
        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=1872,1717289218798020137,8044282692862494453,131072 --gpu-preferences=SAAAAAAAAADgAAAwAAAAAAAAAAAAAAAAAABgAAAAAAAoAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAB4AAAAAAAAAHgAAAAAAAAAKAAAAAQAAAAgAAAAAAAAACgAAAAAAAAAMAAAAAAAAAA4AAAAAAAAABAAAAAAAAAAAAAAAAUAAAAQAAAAAAAAAAAAAAAGAAAAEAAAAAAAAAABAAAABQAAABAAAAAAAAAAAQAAAAYAAAAIAAAAAAAAAAgAAAAAAAAA --mojo-platform-channel-handle=1880 /prefetch:2
          2⤵
            PID:4908
          • 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=1872,1717289218798020137,8044282692862494453,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2304 /prefetch:3
            2⤵
            • Suspicious behavior: EnumeratesProcesses
            PID:3468
          • 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=1872,1717289218798020137,8044282692862494453,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2520 /prefetch:8
            2⤵
              PID:3044
            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1872,1717289218798020137,8044282692862494453,131072 --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=3252 /prefetch:1
              2⤵
                PID:3836
              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1872,1717289218798020137,8044282692862494453,131072 --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=5 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3268 /prefetch:1
                2⤵
                  PID:3532
                • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1872,1717289218798020137,8044282692862494453,131072 --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=4076 /prefetch:1
                  2⤵
                    PID:1580
                  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1872,1717289218798020137,8044282692862494453,131072 --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=8 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=4568 /prefetch:1
                    2⤵
                      PID:4224
                    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1872,1717289218798020137,8044282692862494453,131072 --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=5004 /prefetch:1
                      2⤵
                        PID:3780
                      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1872,1717289218798020137,8044282692862494453,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=10 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3552 /prefetch:1
                        2⤵
                          PID:2068
                        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1872,1717289218798020137,8044282692862494453,131072 --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=3732 /prefetch:1
                          2⤵
                            PID:952
                          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1872,1717289218798020137,8044282692862494453,131072 --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=5548 /prefetch:1
                            2⤵
                              PID:444
                            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1872,1717289218798020137,8044282692862494453,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=13 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5080 /prefetch:1
                              2⤵
                                PID:1328
                              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=chrome.mojom.UtilWin --field-trial-handle=1872,1717289218798020137,8044282692862494453,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5888 /prefetch:8
                                2⤵
                                • Suspicious behavior: EnumeratesProcesses
                                PID:2368
                              • C:\Program Files (x86)\Microsoft\Edge\Application\90.0.818.66\identity_helper.exe
                                "C:\Program Files (x86)\Microsoft\Edge\Application\90.0.818.66\identity_helper.exe" --type=utility --utility-sub-type=winrt_app_id.mojom.WinrtAppIdService --field-trial-handle=1872,1717289218798020137,8044282692862494453,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=6136 /prefetch:8
                                2⤵
                                • Suspicious behavior: EnumeratesProcesses
                                PID:4720
                            • C:\Windows\System32\CompPkgSrv.exe
                              C:\Windows\System32\CompPkgSrv.exe -Embedding
                              1⤵
                                PID:336
                              • C:\Windows\System32\CompPkgSrv.exe
                                C:\Windows\System32\CompPkgSrv.exe -Embedding
                                1⤵
                                  PID:1796

                                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

                                  554d6d27186fa7d6762d95dde7a17584

                                  SHA1

                                  93ea7b20b8fae384cf0be0d65e4295097112fdca

                                  SHA256

                                  2fa6145571e1f1ece9850a1ac94661213d3e0d82f1cef7ac1286ff6b2c2017cb

                                  SHA512

                                  57d9008ccabc315bd0e829b19fe91e24bab6ef20bcfab651b937b0f38eec840b58d0aed092a3bbedd2d6a95d5c150372a1e51087572de55672172adc1fc468a7

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

                                  Filesize

                                  152B

                                  MD5

                                  a28bb0d36049e72d00393056dce10a26

                                  SHA1

                                  c753387b64cc15c0efc80084da393acdb4fc01d0

                                  SHA256

                                  684d797e28b7fd86af84bfb217d190e4f5e03d92092d988a6091b2c7bbbd67c1

                                  SHA512

                                  20940fee33aa2194c36a3db92d4fd314ce7eacc2aa745abec62aa031c2a53ba4ff89f2568626e7bd2536090175f8d045c3bb52c5faa5ecc8da8410ab5fc519f7

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

                                  Filesize

                                  1KB

                                  MD5

                                  267d179927d805a04a1e98cfe8c2b8bd

                                  SHA1

                                  fb9562a92f2f86749369fdcd99c32ad923d5332f

                                  SHA256

                                  31b18d187b052dbb81faf95285e124d51340561a1f7eeadbc17fa826a7071cef

                                  SHA512

                                  03547803111a19669d5cc63ac89dd9322262fd6fc50bf2bf7ab948b31ac6ff66c061f185bc0b900670d7bcb2f108cbe489e862919c27d771614d947a03137008

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

                                  Filesize

                                  758B

                                  MD5

                                  d7bf1ea5845d7b964c2653c01d7049b0

                                  SHA1

                                  b92980a589c34efd958c92b31ef78e9274b17107

                                  SHA256

                                  639f84f7eb8cee0868010585d8091d01658d2841682c9c8f0ec49e2f32e5da9b

                                  SHA512

                                  8e5f1314a0fb32fe6c261079cd7ce12daf566a4699499f3ccb9ba8998bacbcf491ae4f395780fc719222ee08e6df18fc66d3ed4267c74918a9ebd491f952c376

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

                                  Filesize

                                  5KB

                                  MD5

                                  3db1a6c484ea039a98cd738abd9ab0b2

                                  SHA1

                                  251c6f50329756036d09bf34aa26e5707e0ae765

                                  SHA256

                                  f5e0f6df60c84d8eab3d56b4286bcd140396c6460089cd3693d462a1c60b56fc

                                  SHA512

                                  3c8b8937a9a08ecf2da18552b38df3dba2d9a8849f0bc9d8d00363d8c1b24fc29f735be91abd6500f5623fb263d959cc0722d7e9a99132c2d5140ed9c2d90727

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

                                  Filesize

                                  6KB

                                  MD5

                                  a0f566ea4fca43fa54756b895a452b49

                                  SHA1

                                  b3b207a0cb082b0cddf3837accddca8912db57a5

                                  SHA256

                                  b68df6f837a013ba1e41128ed3f5c53f87e33fc70aba48d0ebed044334c04e0b

                                  SHA512

                                  76b12264f9fbbb2ef09fd26133484be7ab80125f7514ba81b48aa1152a83fd5940ab7edebd347ba2ddef1167e87323441ac1a8251930fdf7764fa4d6f503af49

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

                                  Filesize

                                  6KB

                                  MD5

                                  ed253471b23678331b2c26c468bb9cc8

                                  SHA1

                                  44e239878b2f90395550c9b5b3ec4e4fdb80686a

                                  SHA256

                                  4ab0f61e438284b04635469f8bbf7bde6a5c2ab14a0a5c567143849f4ca47f9b

                                  SHA512

                                  a2b1902d9a7e511b224625e2dc1f1e5e329b25156d3c273a113bcb25cb43d3e753a95f1f2fdce9c577df93b0ff978f84b713e5be4667c1c8b43a957163d0ede4

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

                                  Filesize

                                  16B

                                  MD5

                                  46295cac801e5d4857d09837238a6394

                                  SHA1

                                  44e0fa1b517dbf802b18faf0785eeea6ac51594b

                                  SHA256

                                  0f1bad70c7bd1e0a69562853ec529355462fcd0423263a3d39d6d0d70b780443

                                  SHA512

                                  8969402593f927350e2ceb4b5bc2a277f3754697c1961e3d6237da322257fbab42909e1a742e22223447f3a4805f8d8ef525432a7c3515a549e984d3eff72b23

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

                                  Filesize

                                  16B

                                  MD5

                                  206702161f94c5cd39fadd03f4014d98

                                  SHA1

                                  bd8bfc144fb5326d21bd1531523d9fb50e1b600a

                                  SHA256

                                  1005a525006f148c86efcbfb36c6eac091b311532448010f70f7de9a68007167

                                  SHA512

                                  0af09f26941b11991c750d1a2b525c39a8970900e98cba96fd1b55dbf93fee79e18b8aab258f48b4f7bda40d059629bc7770d84371235cdb1352a4f17f80e145

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

                                  Filesize

                                  10KB

                                  MD5

                                  6e50ef8c4ee5b4699cf54c4043449217

                                  SHA1

                                  e61b96bcc3dc417895882feb814c17eea038260a

                                  SHA256

                                  cf04301a74183c4da0edfe5193a8832d9d4fcef55a36577ec5c0e4fa1630835d

                                  SHA512

                                  acd43c4e6f2e5e539d86e2be69e0f52784a14a826bfe501dbf7ca99e0a99901c30de4d297910b08afbea3cd55091b06d747f9b6ffe400de5be73f7887aff9c5c

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

                                  Filesize

                                  10KB

                                  MD5

                                  e7b1077848297f9b3304801b893a26f1

                                  SHA1

                                  ef33b32c128e0f490ce882c3d38fc99444e6e6dc

                                  SHA256

                                  cababfe61423a24f8a76bd152c3caf9575a377187a2f0eb84a1fffc687aa0ca8

                                  SHA512

                                  036402a19374884778791101b4b7082c6415340089ca9f47d3c27041bff85316e529aaae9c287ba0ea023bd91f334c9ef38bd7b183531961b0ff8800a54a5e8e