Resubmissions

05/07/2024, 22:54

240705-2vvkhayaqk7

05/07/2024, 22:51

240705-2s416azhrf7

Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240704-en
  • resource tags

    arch:x64arch:x86image:win11-20240704-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    05/07/2024, 22:51

General

  • Target
    MEMZ 4.0 Clean/MEMZ-Clean.exe
  • Size 12KB
  • Sample240705-2s416azhrf
  • SHA256 4bbf7589615ebdb6c769d6d2e7bdcb26072bac0cda6e225a4133ba8819e688d5
  • MD5 SHA1 SHA512 SSDEEP
Score
1/10

Malware Config

Signatures

  • Checks processor information in registry 2 TTPs 10 IoCs

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

  • Modifies registry class 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of FindShellTrayWindow 6 IoCs
  • Suspicious use of SendNotifyMessage 5 IoCs
  • Suspicious use of SetWindowsHookEx 1 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\MEMZ 4.0 Clean\MEMZ-Clean.exe
    "C:\Users\Admin\AppData\Local\Temp\MEMZ 4.0 Clean\MEMZ-Clean.exe"
    1⤵
      PID:5056
    • C:\Windows\system32\AUDIODG.EXE
      C:\Windows\system32\AUDIODG.EXE 0x00000000000004D4 0x00000000000004C0
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:2808
    • C:\Program Files\Mozilla Firefox\firefox.exe
      "C:\Program Files\Mozilla Firefox\firefox.exe"
      1⤵
      • Suspicious use of WriteProcessMemory
      PID:4700
      • C:\Program Files\Mozilla Firefox\firefox.exe
        "C:\Program Files\Mozilla Firefox\firefox.exe"
        2⤵
        • Checks processor information in registry
        • Modifies registry class
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:4228
        • C:\Program Files\Mozilla Firefox\firefox.exe
          "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="4228.0.1533450942\248485325" -parentBuildID 20230214051806 -prefsHandle 1752 -prefMapHandle 1744 -prefsLen 22074 -prefMapSize 235121 -appDir "C:\Program Files\Mozilla Firefox\browser" - {f7ae19bb-88ba-4e4e-8c83-005e34e065e5} 4228 "\\.\pipe\gecko-crash-server-pipe.4228" 1832 230ccd0e558 gpu
          3⤵
            PID:1604
          • C:\Program Files\Mozilla Firefox\firefox.exe
            "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="4228.1.1570871268\1157184416" -parentBuildID 20230214051806 -prefsHandle 2348 -prefMapHandle 2344 -prefsLen 22110 -prefMapSize 235121 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {fd44217b-d7a1-4b00-b05f-6d9cf5e2c240} 4228 "\\.\pipe\gecko-crash-server-pipe.4228" 2360 230b8b88a58 socket
            3⤵
            • Checks processor information in registry
            PID:1344
          • C:\Program Files\Mozilla Firefox\firefox.exe
            "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="4228.2.1879693099\338121305" -childID 1 -isForBrowser -prefsHandle 2980 -prefMapHandle 2872 -prefsLen 22213 -prefMapSize 235121 -jsInitHandle 1300 -jsInitLen 246560 -a11yResourceId 64 -parentBuildID 20230214051806 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {da387431-a7ff-4302-ac3f-6c6e8bf497f6} 4228 "\\.\pipe\gecko-crash-server-pipe.4228" 2992 230cf9f9658 tab
            3⤵
              PID:3044
            • C:\Program Files\Mozilla Firefox\firefox.exe
              "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="4228.3.1543457301\1125492513" -childID 2 -isForBrowser -prefsHandle 1256 -prefMapHandle 2500 -prefsLen 27614 -prefMapSize 235121 -jsInitHandle 1300 -jsInitLen 246560 -a11yResourceId 64 -parentBuildID 20230214051806 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {78f6788b-dcc7-4221-8bf7-b950c5f8b5d0} 4228 "\\.\pipe\gecko-crash-server-pipe.4228" 3496 230d245a558 tab
              3⤵
                PID:2752
              • C:\Program Files\Mozilla Firefox\firefox.exe
                "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="4228.4.109046630\747900629" -childID 3 -isForBrowser -prefsHandle 5168 -prefMapHandle 5164 -prefsLen 27614 -prefMapSize 235121 -jsInitHandle 1300 -jsInitLen 246560 -a11yResourceId 64 -parentBuildID 20230214051806 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {c70e8337-e43f-4731-9f6c-2b22e53c98fb} 4228 "\\.\pipe\gecko-crash-server-pipe.4228" 5176 230d1d9ae58 tab
                3⤵
                  PID:1268
                • C:\Program Files\Mozilla Firefox\firefox.exe
                  "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="4228.5.427861867\1570025282" -childID 4 -isForBrowser -prefsHandle 5132 -prefMapHandle 5136 -prefsLen 27614 -prefMapSize 235121 -jsInitHandle 1300 -jsInitLen 246560 -a11yResourceId 64 -parentBuildID 20230214051806 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {ac467443-fc8a-4537-8b97-ce42e5c40994} 4228 "\\.\pipe\gecko-crash-server-pipe.4228" 5292 230d1d9c958 tab
                  3⤵
                    PID:4772
                  • C:\Program Files\Mozilla Firefox\firefox.exe
                    "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="4228.6.1888562027\969660329" -childID 5 -isForBrowser -prefsHandle 5360 -prefMapHandle 5364 -prefsLen 27695 -prefMapSize 235121 -jsInitHandle 1300 -jsInitLen 246560 -a11yResourceId 64 -parentBuildID 20230214051806 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {7fd4594e-76c7-4203-906f-6bcebf66794c} 4228 "\\.\pipe\gecko-crash-server-pipe.4228" 5460 230cf349758 tab
                    3⤵
                      PID:2856
                    • C:\Program Files\Mozilla Firefox\firefox.exe
                      "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="4228.7.544528045\605838079" -childID 6 -isForBrowser -prefsHandle 5852 -prefMapHandle 5844 -prefsLen 27695 -prefMapSize 235121 -jsInitHandle 1300 -jsInitLen 246560 -a11yResourceId 64 -parentBuildID 20230214051806 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {b0689eeb-1dd3-4fce-a2cb-a1ce364648a8} 4228 "\\.\pipe\gecko-crash-server-pipe.4228" 5860 230d6459858 tab
                      3⤵
                        PID:3152
                      • C:\Program Files\Mozilla Firefox\firefox.exe
                        "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="4228.8.1807439338\1413807575" -parentBuildID 20230214051806 -prefsHandle 6084 -prefMapHandle 6080 -prefsLen 27695 -prefMapSize 235121 -appDir "C:\Program Files\Mozilla Firefox\browser" - {dbc1b409-f461-43c6-a3f7-78cd772aca44} 4228 "\\.\pipe\gecko-crash-server-pipe.4228" 6092 230d64d2a58 rdd
                        3⤵
                          PID:1828
                        • C:\Program Files\Mozilla Firefox\firefox.exe
                          "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="4228.9.535054279\1590752639" -parentBuildID 20230214051806 -sandboxingKind 1 -prefsHandle 6000 -prefMapHandle 6004 -prefsLen 27695 -prefMapSize 235121 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {2e7bff2a-fc0b-4417-8327-ad350762e278} 4228 "\\.\pipe\gecko-crash-server-pipe.4228" 5988 230d64d1b58 utility
                          3⤵
                            PID:4468
                          • C:\Program Files\Mozilla Firefox\firefox.exe
                            "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="4228.10.1573199766\836961829" -childID 7 -isForBrowser -prefsHandle 6340 -prefMapHandle 6356 -prefsLen 27695 -prefMapSize 235121 -jsInitHandle 1300 -jsInitLen 246560 -a11yResourceId 64 -parentBuildID 20230214051806 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {d1fbebec-aa83-42ae-b6b3-f7eff7970b5c} 4228 "\\.\pipe\gecko-crash-server-pipe.4228" 3716 230cbd26a58 tab
                            3⤵
                              PID:408
                            • C:\Program Files\Mozilla Firefox\firefox.exe
                              "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="4228.11.98018860\1552188195" -childID 8 -isForBrowser -prefsHandle 6604 -prefMapHandle 6600 -prefsLen 27695 -prefMapSize 235121 -jsInitHandle 1300 -jsInitLen 246560 -a11yResourceId 64 -parentBuildID 20230214051806 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {5c00a0a7-5af0-4d48-9345-366011259e19} 4228 "\\.\pipe\gecko-crash-server-pipe.4228" 6612 230d2848258 tab
                              3⤵
                                PID:1868
                              • C:\Program Files\Mozilla Firefox\firefox.exe
                                "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="4228.12.355970184\314951168" -childID 9 -isForBrowser -prefsHandle 6804 -prefMapHandle 6800 -prefsLen 27695 -prefMapSize 235121 -jsInitHandle 1300 -jsInitLen 246560 -a11yResourceId 64 -parentBuildID 20230214051806 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {a08dd7c1-a403-4cb2-8c1d-ee9acf378358} 4228 "\\.\pipe\gecko-crash-server-pipe.4228" 6720 230d2845e58 tab
                                3⤵
                                  PID:2452
                                • C:\Program Files\Mozilla Firefox\firefox.exe
                                  "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="4228.13.2102245273\1155081191" -parentBuildID 20230214051806 -sandboxingKind 0 -prefsHandle 5584 -prefMapHandle 5596 -prefsLen 27695 -prefMapSize 235121 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {17abe971-63cf-43a8-93da-9fb0dd45822f} 4228 "\\.\pipe\gecko-crash-server-pipe.4228" 10928 230cc0a1c58 utility
                                  3⤵
                                    PID:244
                                  • C:\Program Files\Mozilla Firefox\firefox.exe
                                    "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="4228.14.984645257\161093332" -childID 10 -isForBrowser -prefsHandle 10744 -prefMapHandle 10748 -prefsLen 27695 -prefMapSize 235121 -jsInitHandle 1300 -jsInitLen 246560 -a11yResourceId 64 -parentBuildID 20230214051806 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {0f31e4ff-00d0-47bc-967f-846e868a52ab} 4228 "\\.\pipe\gecko-crash-server-pipe.4228" 10732 230d5a78b58 tab
                                    3⤵
                                      PID:2504
                                    • C:\Program Files\Mozilla Firefox\firefox.exe
                                      "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="4228.15.1336448479\647077060" -childID 11 -isForBrowser -prefsHandle 11036 -prefMapHandle 10564 -prefsLen 27695 -prefMapSize 235121 -jsInitHandle 1300 -jsInitLen 246560 -a11yResourceId 64 -parentBuildID 20230214051806 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {5efe7b91-f5cf-4215-8209-6410431aea7a} 4228 "\\.\pipe\gecko-crash-server-pipe.4228" 11048 230d6d4d758 tab
                                      3⤵
                                        PID:4144

                                  Network

                                        MITRE ATT&CK Enterprise v15

                                        Replay Monitor

                                        Loading Replay Monitor...

                                        Downloads

                                        activity-stream.discovery_stream.json.tmp

                                        • Path C:\Users\Admin\AppData\Local\Mozilla\Firefox\Profiles\b5ssbkd8.default-release\activity-stream.discovery_stream.json.tmp
                                        • Size 25KB
                                        • SHA256 a202aa7cc6beb18bb66c8dd652c6798cc891bcab80fc3dd4d3e92092cc64c383
                                        • MD5 SHA1 SHA512 SSDEEP

                                        activity-stream.discovery_stream.json.tmp

                                        • Path C:\Users\Admin\AppData\Local\Mozilla\Firefox\Profiles\b5ssbkd8.default-release\activity-stream.discovery_stream.json.tmp
                                        • Size 27KB
                                        • SHA256 1317ba423015ba54a38a132f84f3674c6b371d56a15d397cf64c8a2234fc0c6f
                                        • MD5 SHA1 SHA512 SSDEEP

                                        81B21244DFA07CD79E5FC20CC51257B0B2224274

                                        • Path C:\Users\Admin\AppData\Local\Mozilla\Firefox\Profiles\b5ssbkd8.default-release\cache2\entries\81B21244DFA07CD79E5FC20CC51257B0B2224274
                                        • Size 756KB
                                        • SHA256 08d2eb3c28e2bf5d74907c0f71bad3f5ce5521a282b23be92cc095ac1cc32ed1
                                        • MD5 SHA1 SHA512 SSDEEP

                                        prefs-1.js

                                        • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\b5ssbkd8.default-release\prefs-1.js
                                        • Size 6KB
                                        • SHA256 34dbf6378e4df106c025550967c0c28f904a65263abf89ddd61e8dc9b5edd0d7
                                        • MD5 SHA1 SHA512 SSDEEP

                                        prefs-1.js

                                        • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\b5ssbkd8.default-release\prefs-1.js
                                        • Size 7KB
                                        • SHA256 62bffb51228d7192a3a5ff04a39a485f2ebc7a632f3628ce7bad4aa1915b87d8
                                        • MD5 SHA1 SHA512 SSDEEP

                                        sessionCheckpoints.json

                                        • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\b5ssbkd8.default-release\sessionCheckpoints.json
                                        • Size 259B
                                        • SHA256 50a670fb78ff2712aae2c16d9499e01c15fddf24e229330d02a69b0527a38092
                                        • MD5 SHA1 SHA512

                                        recovery.jsonlz4

                                        • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\b5ssbkd8.default-release\sessionstore-backups\recovery.jsonlz4
                                        • Size 16KB
                                        • SHA256 95cad85ba8791599a79f1e918dbc4519aab598fb9d09ae917a9603c99bc1c32f
                                        • MD5 SHA1 SHA512 SSDEEP

                                        recovery.jsonlz4

                                        • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\b5ssbkd8.default-release\sessionstore-backups\recovery.jsonlz4
                                        • Size 1KB
                                        • SHA256 9bb93760c53a7f813ee5050ddcea952ecfe9ae12907831d244e47e58a2d7a0fe
                                        • MD5 SHA1 SHA512

                                        sessionstore.jsonlz4

                                        • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\b5ssbkd8.default-release\sessionstore.jsonlz4
                                        • Size 16KB
                                        • SHA256 54386afe946f4c1abbd2d5d1e8dc3ce77eb910cd79241cf00b0f705318b84d91
                                        • MD5 SHA1 SHA512 SSDEEP