Analysis

  • max time kernel
    35s
  • max time network
    42s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240426-en
  • resource tags

    arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    10/05/2024, 12:15

General

  • Target
    http://coomer.su
  • Sample240510-pfcd6aha82
Score
1/10

Malware Config

Signatures

  • Checks processor information in registry 2 TTPs 6 IoCs

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

  • Modifies registry class 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 4 IoCs
  • Suspicious use of SendNotifyMessage 3 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:\Program Files\Mozilla Firefox\firefox.exe
    "C:\Program Files\Mozilla Firefox\firefox.exe" -osint -url "http://coomer.su"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2676
    • C:\Program Files\Mozilla Firefox\firefox.exe
      "C:\Program Files\Mozilla Firefox\firefox.exe" -osint -url http://coomer.su
      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:4936
      • C:\Program Files\Mozilla Firefox\firefox.exe
        "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="4936.0.1505755398\1246420493" -parentBuildID 20230214051806 -prefsHandle 1796 -prefMapHandle 1784 -prefsLen 22074 -prefMapSize 235121 -appDir "C:\Program Files\Mozilla Firefox\browser" - {a7808971-84b1-454b-a90a-7ae05e6a6150} 4936 "\\.\pipe\gecko-crash-server-pipe.4936" 1888 1ad12606e58 gpu
        3⤵
          PID:4688
        • C:\Program Files\Mozilla Firefox\firefox.exe
          "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="4936.1.6664263\1594892609" -parentBuildID 20230214051806 -prefsHandle 2424 -prefMapHandle 2420 -prefsLen 22925 -prefMapSize 235121 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {cd25ea49-b9a8-4315-a325-1a6eeba0db7e} 4936 "\\.\pipe\gecko-crash-server-pipe.4936" 2436 1ad11523858 socket
          3⤵
            PID:3636
          • C:\Program Files\Mozilla Firefox\firefox.exe
            "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="4936.2.788798621\1949157393" -childID 1 -isForBrowser -prefsHandle 2764 -prefMapHandle 3044 -prefsLen 22963 -prefMapSize 235121 -jsInitHandle 1076 -jsInitLen 246560 -a11yResourceId 64 -parentBuildID 20230214051806 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {4b309d7c-7c68-49c8-9b2f-6987baa23dff} 4936 "\\.\pipe\gecko-crash-server-pipe.4936" 2700 1ad15632558 tab
            3⤵
              PID:2116
            • C:\Program Files\Mozilla Firefox\firefox.exe
              "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="4936.3.1546871719\1807628792" -childID 2 -isForBrowser -prefsHandle 3616 -prefMapHandle 3512 -prefsLen 27614 -prefMapSize 235121 -jsInitHandle 1076 -jsInitLen 246560 -a11yResourceId 64 -parentBuildID 20230214051806 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {9243a9a3-68ed-4aed-982e-123154b8d66a} 4936 "\\.\pipe\gecko-crash-server-pipe.4936" 3628 1ad7c673558 tab
              3⤵
                PID:2272
              • C:\Program Files\Mozilla Firefox\firefox.exe
                "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="4936.4.793623376\573369613" -childID 3 -isForBrowser -prefsHandle 5088 -prefMapHandle 5084 -prefsLen 27614 -prefMapSize 235121 -jsInitHandle 1076 -jsInitLen 246560 -a11yResourceId 64 -parentBuildID 20230214051806 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {98666eca-c614-48e8-8419-12e71d409acb} 4936 "\\.\pipe\gecko-crash-server-pipe.4936" 5108 1ad19a68b58 tab
                3⤵
                  PID:3936
                • C:\Program Files\Mozilla Firefox\firefox.exe
                  "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="4936.5.1247723015\1979755792" -childID 4 -isForBrowser -prefsHandle 5460 -prefMapHandle 5440 -prefsLen 27695 -prefMapSize 235121 -jsInitHandle 1076 -jsInitLen 246560 -a11yResourceId 64 -parentBuildID 20230214051806 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {7262d8c8-a81c-48af-b537-7950d9248276} 4936 "\\.\pipe\gecko-crash-server-pipe.4936" 5404 1ad1aab6c58 tab
                  3⤵
                    PID:3380
                  • C:\Program Files\Mozilla Firefox\firefox.exe
                    "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="4936.6.514997766\145727449" -childID 5 -isForBrowser -prefsHandle 5496 -prefMapHandle 5500 -prefsLen 27695 -prefMapSize 235121 -jsInitHandle 1076 -jsInitLen 246560 -a11yResourceId 64 -parentBuildID 20230214051806 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {7cf94156-f484-4a76-815b-eec4d5d9967b} 4936 "\\.\pipe\gecko-crash-server-pipe.4936" 5488 1ad1aab7b58 tab
                    3⤵
                      PID:1856
                    • C:\Program Files\Mozilla Firefox\firefox.exe
                      "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="4936.7.569482260\1447220591" -childID 6 -isForBrowser -prefsHandle 5772 -prefMapHandle 5768 -prefsLen 27695 -prefMapSize 235121 -jsInitHandle 1076 -jsInitLen 246560 -a11yResourceId 64 -parentBuildID 20230214051806 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {44b24ec5-b7a2-46d8-abba-95cccf4b40e0} 4936 "\\.\pipe\gecko-crash-server-pipe.4936" 5780 1ad1ac2d858 tab
                      3⤵
                        PID:1676

                  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\3b1psp2h.default-release\activity-stream.discovery_stream.json.tmp
                        • Size 23KB
                        • SHA256 17f69f308cb5e42dc48ce7d5c7809687226bcc456f12447d4da8116766466884
                        • MD5 SHA1 SHA512 SSDEEP

                        CC9AFF3BE02AD27708D587AE49B3DC68644172BA

                        • Path C:\Users\Admin\AppData\Local\Mozilla\Firefox\Profiles\3b1psp2h.default-release\cache2\entries\CC9AFF3BE02AD27708D587AE49B3DC68644172BA
                        • Size 13KB
                        • SHA256 34899e6b672e3c261c578b39167e7e4d91d7f25bdc1078e9a3c4757182f667e9
                        • MD5 SHA1 SHA512 SSDEEP

                        tmpaddon

                        • Path C:\Users\Admin\AppData\Local\Temp\tmpaddon
                        • Size 442KB
                        • SHA256 a9f4281f82b3579581c389e8583dc9f477c7fd0e20c9dfc91a2e611e21e3407e
                        • MD5 SHA1 SHA512 SSDEEP

                        tmpaddon-1

                        • Path C:\Users\Admin\AppData\Local\Temp\tmpaddon-1
                        • Size 8.0MB
                        • SHA256 345d44e3aa3e1967d186a43d732c8051235c43458169a5d7d371780a6475ee42
                        • MD5 SHA1 SHA512 SSDEEP

                        gmpopenh264.dll

                        • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\3b1psp2h.default-release\gmp-gmpopenh264\1.8.1.2\gmpopenh264.dll
                        • Size 997KB
                        • SHA256 1ed7877024be63a049da98733fd282c16bd620530a4fb580dacec3a78ace914e
                        • MD5 SHA1 SHA512 SSDEEP

                        gmpopenh264.info

                        • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\3b1psp2h.default-release\gmp-gmpopenh264\1.8.1.2\gmpopenh264.info
                        • Size 116B
                        • SHA256 f526e9f98841d987606efeaff7f3e017ba9fd516c4be83890c7f9a093ea4c47b
                        • MD5 SHA1 SHA512

                        LICENSE.txt

                        • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\3b1psp2h.default-release\gmp-widevinecdm\4.10.2557.0\LICENSE.txt
                        • Size 479B
                        • SHA256 2af127b4e00f7303de8271996c0c681063e4dc7abdc7b2a8c3fe5932b9352539
                        • MD5 SHA1 SHA512

                        manifest.json

                        • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\3b1psp2h.default-release\gmp-widevinecdm\4.10.2557.0\manifest.json
                        • Size 372B
                        • SHA256 e92d3394635edfb987a7528e0ccd24360e07a299078df2a6967ca3aae22fa2dd
                        • MD5 SHA1 SHA512

                        widevinecdm.dll

                        • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\3b1psp2h.default-release\gmp-widevinecdm\4.10.2557.0\widevinecdm.dll
                        • Size 11.8MB
                        • SHA256 8ee42d9258e20bbc5bfdfae61605429beb5421ffeaaa0d02b86d4978f4b4ac4e
                        • MD5 SHA1 SHA512 SSDEEP

                        widevinecdm.dll.lib

                        • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\3b1psp2h.default-release\gmp-widevinecdm\4.10.2557.0\widevinecdm.dll.lib
                        • Size 1KB
                        • SHA256 33899a3ebc22cb8ed8de7bd48c1c29486c0279b06d7ef98241c92aef4e3b9237
                        • MD5 SHA1 SHA512

                        widevinecdm.dll.sig

                        • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\3b1psp2h.default-release\gmp-widevinecdm\4.10.2557.0\widevinecdm.dll.sig
                        • Size 1KB
                        • SHA256 68a03f075db104f84afdd8fca45a7e4bff7b55dc1a2a24272b3abe16d8759c81
                        • MD5 SHA1 SHA512

                        prefs-1.js

                        • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\3b1psp2h.default-release\prefs-1.js
                        • Size 10KB
                        • SHA256 91911111332d3987a1864e775ab88a17fe0c2144ff72630024408d69281b491f
                        • MD5 SHA1 SHA512 SSDEEP

                        prefs.js

                        • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\3b1psp2h.default-release\prefs.js
                        • Size 6KB
                        • SHA256 28fb172defdbc18a179b6c6e3800b0a2ddcfd9b67d1a1fedc1c16947b583fd0c
                        • MD5 SHA1 SHA512 SSDEEP

                        prefs.js

                        • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\3b1psp2h.default-release\prefs.js
                        • Size 7KB
                        • SHA256 89d063fda2fa0bfdf1e0eaf736e07590abcee350c37647972b3ba57ea186a3b9
                        • MD5 SHA1 SHA512 SSDEEP

                        recovery.jsonlz4

                        • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\3b1psp2h.default-release\sessionstore-backups\recovery.jsonlz4
                        • Size 7KB
                        • SHA256 a7a89ef67fdcb2ddcc9f711ea1a6e94e5a132122a56fb1a4445febbf7e602a61
                        • MD5 SHA1 SHA512 SSDEEP