Analysis

  • max time kernel
    50s
  • max time network
    48s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240802-en
  • resource tags

    arch:x64arch:x86image:win11-20240802-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    29-09-2024 05:53

General

  • Target

    https://cdn.discordapp.com/attachments/1288245568552042496/1289789134239432806/Anthrax_Free_Client_protected.dll?ex=66fa193c&is=66f8c7bc&hm=6547eb8ac980ffb91d833b358456f06fa2a0bf4d7744eb722bf591450f00e90c&

Score
8/10

Malware Config

Signatures

  • Downloads MZ/PE file
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Checks processor information in registry 2 TTPs 3 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 6 IoCs
  • Modifies registry class 2 IoCs
  • NTFS ADS 2 IoCs
  • Suspicious behavior: AddClipboardFormatListener 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 7 IoCs
  • Suspicious use of FindShellTrayWindow 35 IoCs
  • Suspicious use of SendNotifyMessage 12 IoCs
  • Suspicious use of SetWindowsHookEx 15 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://cdn.discordapp.com/attachments/1288245568552042496/1289789134239432806/Anthrax_Free_Client_protected.dll?ex=66fa193c&is=66f8c7bc&hm=6547eb8ac980ffb91d833b358456f06fa2a0bf4d7744eb722bf591450f00e90c&
    1⤵
    • Enumerates system info in registry
    • Modifies registry class
    • NTFS ADS
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:3604
    • 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,0x7ff9e8bf3cb8,0x7ff9e8bf3cc8,0x7ff9e8bf3cd8
      2⤵
        PID:2080
      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=1896,12894636248645224764,8509616713905675060,131072 --gpu-preferences=SAAAAAAAAADgAAAwAAAAAAAAAAAAAAAAAABgAAAAAAAoAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAB4AAAAAAAAAHgAAAAAAAAAKAAAAAQAAAAgAAAAAAAAACgAAAAAAAAAMAAAAAAAAAA4AAAAAAAAABAAAAAAAAAAAAAAAAUAAAAQAAAAAAAAAAAAAAAGAAAAEAAAAAAAAAABAAAABQAAABAAAAAAAAAAAQAAAAYAAAAIAAAAAAAAAAgAAAAAAAAA --mojo-platform-channel-handle=1812 /prefetch:2
        2⤵
          PID:124
        • 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=1896,12894636248645224764,8509616713905675060,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2080 /prefetch:3
          2⤵
          • Suspicious behavior: EnumeratesProcesses
          PID:3644
        • 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=1896,12894636248645224764,8509616713905675060,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2636 /prefetch:8
          2⤵
            PID:2200
          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1896,12894636248645224764,8509616713905675060,131072 --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=3232 /prefetch:1
            2⤵
              PID:4828
            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1896,12894636248645224764,8509616713905675060,131072 --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=3368 /prefetch:1
              2⤵
                PID:392
              • 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=1896,12894636248645224764,8509616713905675060,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=4576 /prefetch:8
                2⤵
                • Suspicious behavior: EnumeratesProcesses
                PID:1432
              • 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=1896,12894636248645224764,8509616713905675060,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5192 /prefetch:8
                2⤵
                • Suspicious behavior: EnumeratesProcesses
                PID:2956
              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1896,12894636248645224764,8509616713905675060,131072 --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=5416 /prefetch:1
                2⤵
                  PID:3420
                • 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.UtilReadIcon --field-trial-handle=1896,12894636248645224764,8509616713905675060,131072 --lang=en-US --service-sandbox-type=icon_reader --mojo-platform-channel-handle=5800 /prefetch:8
                  2⤵
                    PID:3120
                  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1896,12894636248645224764,8509616713905675060,131072 --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=5512 /prefetch:1
                    2⤵
                      PID:5112
                    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1896,12894636248645224764,8509616713905675060,131072 --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=13 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5360 /prefetch:1
                      2⤵
                        PID:1312
                      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1896,12894636248645224764,8509616713905675060,131072 --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=5516 /prefetch:1
                        2⤵
                          PID:1676
                        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1896,12894636248645224764,8509616713905675060,131072 --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=5636 /prefetch:1
                          2⤵
                            PID:1944
                          • 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=1896,12894636248645224764,8509616713905675060,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5328 /prefetch:8
                            2⤵
                            • NTFS ADS
                            • Suspicious behavior: EnumeratesProcesses
                            PID:4508
                        • C:\Windows\System32\CompPkgSrv.exe
                          C:\Windows\System32\CompPkgSrv.exe -Embedding
                          1⤵
                            PID:4672
                          • C:\Windows\System32\CompPkgSrv.exe
                            C:\Windows\System32\CompPkgSrv.exe -Embedding
                            1⤵
                              PID:4640
                            • C:\Windows\System32\rundll32.exe
                              C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
                              1⤵
                                PID:1352
                              • C:\Windows\system32\OpenWith.exe
                                C:\Windows\system32\OpenWith.exe -Embedding
                                1⤵
                                • Modifies registry class
                                • Suspicious behavior: GetForegroundWindowSpam
                                • Suspicious use of SetWindowsHookEx
                                PID:2348
                                • C:\Program Files\Microsoft Office\root\Office16\Winword.exe
                                  "C:\Program Files\Microsoft Office\root\Office16\Winword.exe" /n "C:\Users\Admin\Downloads\Anthrax_Free_Client_protected.dll"
                                  2⤵
                                  • Checks processor information in registry
                                  • Enumerates system info in registry
                                  • Suspicious behavior: AddClipboardFormatListener
                                  • Suspicious use of SetWindowsHookEx
                                  PID:572

                              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

                                302c3de891ef3a75b81a269db4e1cf22

                                SHA1

                                5401eb5166da78256771e8e0281ca2d1f471c76f

                                SHA256

                                1d1640e5755779c90676290853d2e3ca948f57cf5fb1df4b786e277a97757f58

                                SHA512

                                da18e7d40376fd13255f3f67a004c3a7f408466bd7ce92e36a4d0c20441279fe4b1b6e0874ab74c494663fb97bd7992b5e7c264b3fc434c1e981326595263d33

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

                                Filesize

                                152B

                                MD5

                                c9efc5ba989271670c86d3d3dd581b39

                                SHA1

                                3ad714bcf6bac85e368b8ba379540698d038084f

                                SHA256

                                c2e16990b0f6f23efdcecd99044993a4c2b8ba87bd542dd8f6256d69e24b93b3

                                SHA512

                                c1bc0dc70ab827b54feb64ad069d21e1c3c28d57d126b08314a9670437881d77dba02b5cca57ef0f2aa7f8e7d4d163fbd2c6f246ea2d51ce201d61a89015e8b7

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

                                Filesize

                                5KB

                                MD5

                                7f32360e2d1ac0a5e0f42e547b754980

                                SHA1

                                359cfe7bde02eaeec8991cc2ec56111ec69df312

                                SHA256

                                d4132508b6c5d878ba1e1e61e8d14f8b75601b0ccb28742bdc486b1f85ea90ba

                                SHA512

                                15ebcf6db917b149a5ba53064812f84d1f03e29bc1f6c1e198f59519d0edaa3bb5e9100f2267842a0bdafc90bbe48086a9352d47c89723a216139e285743088c

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

                                Filesize

                                5KB

                                MD5

                                95b17babbd8e1dffd10439b09357ac5b

                                SHA1

                                4d364f4abdb89906f869ccb5aa0f4279350940eb

                                SHA256

                                464ae30514cfc386079d36d1a425e6ab5be6079486ac412aca83604da31c77fe

                                SHA512

                                5392669ba514bdefcb007178bb34aab294978e5e2752e1093d1ff20f427ea81c5d7c351651e293982f821f0be81139fab10e329fb38b470d322bea1b04ef746b

                              • 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

                                b16d8105028491c5e8c23758c8d42bd5

                                SHA1

                                87f163552de101f710afcaecefe3762b1afc979a

                                SHA256

                                2d6a79cb0ac56cd88917f29a6a68484d9e71b1803289e9e0d710b6b4aebe6997

                                SHA512

                                eedace33c222decc31587b70b6e39df2f819118b369d6f3a3db95be6c3cc3cd805331283b99952e4dd4a04c4aa0bcb162958387e231725c34ca7329e903d2b7c

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

                                Filesize

                                10KB

                                MD5

                                0360e5b4f7265afec4b838480fff748b

                                SHA1

                                7b98669eb9904aeabdbea7cd807aee858a7c5d37

                                SHA256

                                9440098a926f304ac3f0ae6b73037e9df97dbde324a4ffa533201bb8bc1857ed

                                SHA512

                                44a59d840bba9931c4c91045562e8941a75691879280e654b17c7a5747615b06785d33f75ba9b3461be0c02641488b41e2bca8517631935af88eda2b560b001c

                              • C:\Users\Admin\Downloads\Anthrax_Free_Client_protected.dll:Zone.Identifier

                                Filesize

                                26B

                                MD5

                                fbccf14d504b7b2dbcb5a5bda75bd93b

                                SHA1

                                d59fc84cdd5217c6cf74785703655f78da6b582b

                                SHA256

                                eacd09517ce90d34ba562171d15ac40d302f0e691b439f91be1b6406e25f5913

                                SHA512

                                aa1d2b1ea3c9de3ccadb319d4e3e3276a2f27dd1a5244fe72de2b6f94083dddc762480482c5c2e53f803cd9e3973ddefc68966f974e124307b5043e654443b98

                              • C:\Users\Admin\Downloads\Unconfirmed 105703.crdownload

                                Filesize

                                3.4MB

                                MD5

                                2c30095da695bba83b37027e540136a1

                                SHA1

                                6b383b37e37ef3fc20d4126e7a5ce57e16c10aa6

                                SHA256

                                286712b5f9782bdf1cff50fca00619409cb8f1ee7558b98b515968d62562147c

                                SHA512

                                a86bb5cbcd109160fb41f399c05b381116c01c79a940f6b36200f51896139179716ba5cae2bf7d7046ef84596ab8a6671c591410bcbc8f4ae18d5c69d11cdeb1

                              • memory/572-104-0x00007FF9B78F0000-0x00007FF9B7900000-memory.dmp

                                Filesize

                                64KB

                              • memory/572-102-0x00007FF9B78F0000-0x00007FF9B7900000-memory.dmp

                                Filesize

                                64KB

                              • memory/572-101-0x00007FF9B78F0000-0x00007FF9B7900000-memory.dmp

                                Filesize

                                64KB

                              • memory/572-100-0x00007FF9B78F0000-0x00007FF9B7900000-memory.dmp

                                Filesize

                                64KB

                              • memory/572-103-0x00007FF9B78F0000-0x00007FF9B7900000-memory.dmp

                                Filesize

                                64KB

                              • memory/572-105-0x00007FF9B56D0000-0x00007FF9B56E0000-memory.dmp

                                Filesize

                                64KB

                              • memory/572-106-0x00007FF9B56D0000-0x00007FF9B56E0000-memory.dmp

                                Filesize

                                64KB