Analysis

  • max time kernel
    207s
  • max time network
    209s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16-04-2023 13:03

General

  • Target

    rbxfpsunlocker.exe

  • Size

    501KB

  • MD5

    f6722f9f28173138464a22fd516c0275

  • SHA1

    247c828444f9ed61037704b4e2b6f5431f410a73

  • SHA256

    19f11c65f6c8dc386e9e8fdc79326fd7580395d9931a5e952feac40d26a88907

  • SHA512

    2ddff2df9e550e6dae9b3ece908e9887e4ab4a26d056d73a6f224b0f0ad981c499819c211701f953abbc79512c821725330e35f905ea743d9aeb3f23a1646c50

  • SSDEEP

    6144:Ry2RPslBVptHpJA5mmWRTzSVRkzyNXf6tyRqgrOEqV7DIyohcqSHP4ooXHE:FPAJJBRaVS+NXGyRq/x7noCq+w/

Score
5/10

Malware Config

Signatures

  • Drops file in System32 directory 1 IoCs
  • Checks processor information in registry 2 TTPs 5 IoCs

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

  • Modifies registry class 1 IoCs
  • NTFS ADS 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of FindShellTrayWindow 5 IoCs
  • Suspicious use of SendNotifyMessage 4 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Users\Admin\AppData\Local\Temp\rbxfpsunlocker.exe
    "C:\Users\Admin\AppData\Local\Temp\rbxfpsunlocker.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    PID:4220
  • C:\Windows\System32\rundll32.exe
    C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
    1⤵
      PID:3600
    • C:\Program Files\Mozilla Firefox\firefox.exe
      "C:\Program Files\Mozilla Firefox\firefox.exe"
      1⤵
      • Suspicious use of WriteProcessMemory
      PID:4136
      • C:\Program Files\Mozilla Firefox\firefox.exe
        "C:\Program Files\Mozilla Firefox\firefox.exe"
        2⤵
        • Checks processor information in registry
        • Modifies registry class
        • NTFS ADS
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:1408
        • C:\Program Files\Mozilla Firefox\firefox.exe
          "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="1408.0.1391862684\2067834406" -parentBuildID 20221007134813 -prefsHandle 1820 -prefMapHandle 1812 -prefsLen 20890 -prefMapSize 232675 -appDir "C:\Program Files\Mozilla Firefox\browser" - {f8ffadde-86da-4922-80ec-a7e6381cc54a} 1408 "\\.\pipe\gecko-crash-server-pipe.1408" 1912 208e30a5258 gpu
          3⤵
            PID:4424
          • C:\Program Files\Mozilla Firefox\firefox.exe
            "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="1408.1.552874754\665909091" -parentBuildID 20221007134813 -prefsHandle 2288 -prefMapHandle 2284 -prefsLen 20926 -prefMapSize 232675 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {19bc1419-d593-4289-9470-110f08480133} 1408 "\\.\pipe\gecko-crash-server-pipe.1408" 2300 208d5070158 socket
            3⤵
              PID:2204
            • C:\Program Files\Mozilla Firefox\firefox.exe
              "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="1408.2.717824473\2092308954" -childID 1 -isForBrowser -prefsHandle 2932 -prefMapHandle 2972 -prefsLen 21074 -prefMapSize 232675 -jsInitHandle 1476 -jsInitLen 246848 -a11yResourceId 64 -parentBuildID 20221007134813 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {014c82a7-3023-480b-b878-9432a0422eb4} 1408 "\\.\pipe\gecko-crash-server-pipe.1408" 2880 208e5e34d58 tab
              3⤵
                PID:384
              • C:\Program Files\Mozilla Firefox\firefox.exe
                "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="1408.3.1287452251\899310508" -childID 2 -isForBrowser -prefsHandle 3240 -prefMapHandle 3160 -prefsLen 26519 -prefMapSize 232675 -jsInitHandle 1476 -jsInitLen 246848 -a11yResourceId 64 -parentBuildID 20221007134813 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {3af22872-30f9-45f3-8bf5-a522dc457b37} 1408 "\\.\pipe\gecko-crash-server-pipe.1408" 1252 208d5071958 tab
                3⤵
                  PID:2696
                • C:\Program Files\Mozilla Firefox\firefox.exe
                  "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="1408.4.469224828\436317084" -childID 3 -isForBrowser -prefsHandle 3976 -prefMapHandle 3972 -prefsLen 26519 -prefMapSize 232675 -jsInitHandle 1476 -jsInitLen 246848 -a11yResourceId 64 -parentBuildID 20221007134813 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {10630853-105c-4216-966f-98b8671d35ca} 1408 "\\.\pipe\gecko-crash-server-pipe.1408" 3988 208e4b21f58 tab
                  3⤵
                    PID:3036
                  • C:\Program Files\Mozilla Firefox\firefox.exe
                    "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="1408.6.1783355985\993813861" -childID 5 -isForBrowser -prefsHandle 5124 -prefMapHandle 5044 -prefsLen 26657 -prefMapSize 232675 -jsInitHandle 1476 -jsInitLen 246848 -a11yResourceId 64 -parentBuildID 20221007134813 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {5f33992b-df72-45b6-aa8f-556943893c05} 1408 "\\.\pipe\gecko-crash-server-pipe.1408" 5156 208e823f658 tab
                    3⤵
                      PID:2856
                    • C:\Program Files\Mozilla Firefox\firefox.exe
                      "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="1408.5.1477101384\1493060081" -childID 4 -isForBrowser -prefsHandle 5288 -prefMapHandle 5252 -prefsLen 26657 -prefMapSize 232675 -jsInitHandle 1476 -jsInitLen 246848 -a11yResourceId 64 -parentBuildID 20221007134813 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {41a663e3-fcc0-4c9e-904b-e4c4c8a0c8e3} 1408 "\\.\pipe\gecko-crash-server-pipe.1408" 5300 208d506a858 tab
                      3⤵
                        PID:3148
                      • C:\Program Files\Mozilla Firefox\firefox.exe
                        "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="1408.7.618693194\1151999475" -childID 6 -isForBrowser -prefsHandle 5496 -prefMapHandle 5492 -prefsLen 26657 -prefMapSize 232675 -jsInitHandle 1476 -jsInitLen 246848 -a11yResourceId 64 -parentBuildID 20221007134813 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {7f8690ab-4356-435e-9543-9830defa0422} 1408 "\\.\pipe\gecko-crash-server-pipe.1408" 2832 208e7f50958 tab
                        3⤵
                          PID:2792
                        • C:\Program Files\Mozilla Firefox\firefox.exe
                          "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="1408.8.401660470\1045651263" -childID 7 -isForBrowser -prefsHandle 5776 -prefMapHandle 5844 -prefsLen 26738 -prefMapSize 232675 -jsInitHandle 1476 -jsInitLen 246848 -a11yResourceId 64 -parentBuildID 20221007134813 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {efe54c29-9e61-4ccd-9525-4a23f2a96f79} 1408 "\\.\pipe\gecko-crash-server-pipe.1408" 5888 208e9e2eb58 tab
                          3⤵
                            PID:1876
                          • C:\Program Files\Mozilla Firefox\firefox.exe
                            "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="1408.9.653988316\655797524" -childID 8 -isForBrowser -prefsHandle 6072 -prefMapHandle 6136 -prefsLen 26930 -prefMapSize 232675 -jsInitHandle 1476 -jsInitLen 246848 -a11yResourceId 64 -parentBuildID 20221007134813 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {02cc4543-ecdc-4195-b41f-bad9287f2af6} 1408 "\\.\pipe\gecko-crash-server-pipe.1408" 6156 208ea5e1b58 tab
                            3⤵
                              PID:3268
                            • C:\Program Files\Mozilla Firefox\firefox.exe
                              "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="1408.10.781639134\1569526126" -parentBuildID 20221007134813 -prefsHandle 6380 -prefMapHandle 6184 -prefsLen 26930 -prefMapSize 232675 -appDir "C:\Program Files\Mozilla Firefox\browser" - {ccc1c8e1-9ca1-4bb1-8504-512a28c648e5} 1408 "\\.\pipe\gecko-crash-server-pipe.1408" 6392 208ea6cd858 rdd
                              3⤵
                                PID:5028
                              • C:\Program Files\Mozilla Firefox\firefox.exe
                                "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="1408.11.1237815332\106871160" -childID 9 -isForBrowser -prefsHandle 6488 -prefMapHandle 4464 -prefsLen 26930 -prefMapSize 232675 -jsInitHandle 1476 -jsInitLen 246848 -a11yResourceId 64 -parentBuildID 20221007134813 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {de85702c-2970-4420-ad97-40620366d7df} 1408 "\\.\pipe\gecko-crash-server-pipe.1408" 3604 208e1f1d358 tab
                                3⤵
                                  PID:1164
                            • C:\Users\Admin\AppData\Local\Temp\Temp1_rbxfpsunlocker-x64.zip\rbxfpsunlocker.exe
                              "C:\Users\Admin\AppData\Local\Temp\Temp1_rbxfpsunlocker-x64.zip\rbxfpsunlocker.exe"
                              1⤵
                              • Drops file in System32 directory
                              PID:1208

                            Network

                            MITRE ATT&CK Enterprise v6

                            Replay Monitor

                            Loading Replay Monitor...

                            Downloads

                            • C:\Users\Admin\AppData\Local\Mozilla\Firefox\Profiles\57nap2zl.default-release\activity-stream.discovery_stream.json.tmp

                              Filesize

                              142KB

                              MD5

                              840cf698e84d1e6034fac01104f9bf95

                              SHA1

                              38a6ece112cadde4486e677a33fb6062a097b1f7

                              SHA256

                              d362c2e35b9024a315e65c7c345cc7d0a6cf36efdfc2155d5b1f24304055ac4b

                              SHA512

                              d854932c82e3c95b35ded2cd2c732ae8e915e2a602a4ad890e81c3951ba46ac0fde65048da074fbc84bd7c4995739bb51f599fd7cfb605e59c37a7867d84c544

                            • C:\Users\Admin\AppData\Local\Mozilla\Firefox\Profiles\57nap2zl.default-release\cache2\doomed\15393

                              Filesize

                              15KB

                              MD5

                              af44194447d14985a298369f56b5836a

                              SHA1

                              694af9abffd4160d6912f394fa6f683ab2d151ea

                              SHA256

                              56004399ebdff72a1c3453964edcb5a633e5a5c8a27c80f46367d7c0ec2a780b

                              SHA512

                              5305cd3eeb7691e68a136b1a1b0677cd874fa0e0df2876d3ce932000cf2af5ca29794c7ab905f136ca7284f8a01371341f78437441500e583ccd06ca5472b295

                            • C:\Users\Admin\AppData\Local\Mozilla\Firefox\Profiles\57nap2zl.default-release\cache2\doomed\32665

                              Filesize

                              14KB

                              MD5

                              e59c8dd3a7c4c05fa6a341d621a0ca9c

                              SHA1

                              ff686ce4377557593f819d57bc66bf1d2ef21e65

                              SHA256

                              fa02a5b55c07b89c46de44ef694d77452f4b8ff8300635595a44327a48389afe

                              SHA512

                              e8e44f6b501d3e78269f3a8ca7ff9344db03f8741416d685f81aa1b98a5e7549e45f7d65dcea66281d5fabb08876f667b4ec1dd1cde40e9d9172fd5af1dfc0cc

                            • C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\57nap2zl.default-release\prefs-1.js

                              Filesize

                              6KB

                              MD5

                              fac90a94d5e023bed3828e7eccf15289

                              SHA1

                              988a2a904fb431c2b024c779d5493e5645edc1a2

                              SHA256

                              a6a50763cd7c2d7443fefce08efed13228a9b0d747f4d28458f9de2fb9a73ecb

                              SHA512

                              3125fb0cd025aa547ebe67caffb099302b23e8bc7d551784d0d94d6147104dfc12b5d509125a588e36123394221e20108b3cd6b7a192527445f63d4dbb527fde

                            • C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\57nap2zl.default-release\prefs-1.js

                              Filesize

                              6KB

                              MD5

                              ab66d8cb8aaaf626872c35b939ab8d54

                              SHA1

                              7485b7a624cf877ed543de137e3bcc381e065eef

                              SHA256

                              76d7a8b325daf6a749962b3280818db72455b7bfdb0e5cc358a282c8cefacf81

                              SHA512

                              0b06ba9255d63021557a5c5579d3d5a1af94a35b64bcbc88539594d077102041469f503a67b71ccdee458c53442295a3edd95db8c9f54a0903fb215f3fca0390

                            • C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\57nap2zl.default-release\prefs-1.js

                              Filesize

                              6KB

                              MD5

                              ccadf9c6d9e6c5a534d181cbca266dbd

                              SHA1

                              926c00349f69035e816f34d18eaa433a48e083a7

                              SHA256

                              fcdf6fb9a7661bae14d7021ad8b7e7782f0bd607f21f597dbaff67b831835cb6

                              SHA512

                              db55d0374c0e5768ddfd8266ee0ffd4dd889c962d75130c4bfeb07ab0bf92294ec4a65dd7f193f5be36de65978fe25d73f52c4b257ce8f262ab38407718b9a2c

                            • C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\57nap2zl.default-release\prefs-1.js

                              Filesize

                              7KB

                              MD5

                              458abcc40c24b67ee80e8ac4ee334a38

                              SHA1

                              2dc1849dbb5fe4fb6999232b726fa1d401a02937

                              SHA256

                              9e5875f792b3cc363c2a47732ec81001a3b11c9f14f0aa04f1be13ae56b84717

                              SHA512

                              b91320ddcee5e9171c0a5bc6d5f357ca32d5fc5222fd64197795037595624dde0d83ce07a8734e7a1591085a469d9238089c4a6f05699561677e5ffa1c5b37d0

                            • C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\57nap2zl.default-release\prefs.js

                              Filesize

                              6KB

                              MD5

                              feb8a52858c8167a58f36caa1b37f116

                              SHA1

                              7ae7f9d2721ae3c579f9e18e4fea679e8c848158

                              SHA256

                              adbc4c7b5e775c3d401ae811d5be5a69b844f5937e3d0a416d374dd5a7ec227a

                              SHA512

                              109d42ec5b9744b3561d29a9cabdcf2ffb81233935fa5c2d80c39f27b92ae55366c3c51ae3d26cc1a8936635662acbd11af89e54efac374aceaa279f13e7dc16

                            • C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\57nap2zl.default-release\sessionstore-backups\recovery.jsonlz4

                              Filesize

                              4KB

                              MD5

                              cde149db1d58dc52aa7e8d4364f57a52

                              SHA1

                              58027ce1a6be0f3639895fc2c582d349756e1f70

                              SHA256

                              c5d213f55de889634602ff768c371d06320dab75311407a5250d7bb6ae4b4186

                              SHA512

                              fd07b310ed573deed866d92c233ca8c2d7a509db8f4f34111c307a1898bec7d8b8a44165a99f80154a05de9a523e3ed5a8808708cc75f4ebf6637a6430ba76fd

                            • C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\57nap2zl.default-release\sessionstore-backups\recovery.jsonlz4

                              Filesize

                              3KB

                              MD5

                              9d129ade850cb5248a9fc25bef695710

                              SHA1

                              2c3cf815a67146b49e9ec7185d82f0868ff4e30f

                              SHA256

                              378c4d2929a1ccec92ec834101bc6080503abcddb7e27d73189c9270e6662d01

                              SHA512

                              94e641434c39100561b376af154ac3415df4f4124b4c678d279e82f0aa8c97f7ab8c9eb50d70982e4e6da772619995b9a0e6d7b7c52b5a79a50301510620f5a8

                            • C:\Users\Admin\Downloads\rbxfpsunlocker-x64.0abDVocw.zip.part

                              Filesize

                              35KB

                              MD5

                              7361084b0059b13f500c798276b0e14a

                              SHA1

                              bb9517bdd406d25a03fab1c4289e3d3d178d2416

                              SHA256

                              210adefd74b2f966061573db661ceed183d29fd305fc8b88fde149c45dbec551

                              SHA512

                              89168801b4b0e6b2882aa33310f88ec5e019b416695aec18e6f72fd7068d16af8b7c932110a57c9af08af098dd7e23776fdc1f9803069b41d6e333263b4e3caf