Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows11-21h2_x64
  • resource
    win11-20250502-en
  • resource tags

    arch:x64arch:x86image:win11-20250502-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    11/05/2026, 14:16

General

  • Target
    http://cdn.polyfill.io
  • Sample260511-rlcm8ab161
Score
1/10

Malware Config

Signatures

  • Checks processor information in registry 2 TTPs 22 IoCs

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

  • Suspicious use of AdjustPrivilegeToken 7 IoCs
  • Suspicious use of FindShellTrayWindow 18 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 44 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://cdn.polyfill.io"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3052
    • C:\Program Files\Mozilla Firefox\firefox.exe
      "C:\Program Files\Mozilla Firefox\firefox.exe" -osint -url http://cdn.polyfill.io
      2⤵
      • Checks processor information in registry
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:5300
      • C:\Program Files\Mozilla Firefox\firefox.exe
        "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -parentBuildID 20250130195129 -prefsHandle 1980 -prefsLen 27097 -prefMapHandle 1984 -prefMapSize 270279 -ipcHandle 2060 -initialChannelId {409179cf-6798-4481-b7ee-0894081261e7} -parentPid 5300 -crashReporter "\\.\pipe\gecko-crash-server-pipe.5300" -appDir "C:\Program Files\Mozilla Firefox\browser" - 1 gpu
        3⤵
          PID:1444
        • C:\Program Files\Mozilla Firefox\firefox.exe
          "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -parentBuildID 20250130195129 -prefsHandle 2436 -prefsLen 27133 -prefMapHandle 2440 -prefMapSize 270279 -ipcHandle 2452 -initialChannelId {2f984720-e5b6-4412-a2aa-52610a9120d5} -parentPid 5300 -crashReporter "\\.\pipe\gecko-crash-server-pipe.5300" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 2 socket
          3⤵
            PID:4232
          • C:\Program Files\Mozilla Firefox\firefox.exe
            "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 3788 -prefsLen 25213 -prefMapHandle 3792 -prefMapSize 270279 -jsInitHandle 3796 -jsInitLen 253512 -parentBuildID 20250130195129 -ipcHandle 3804 -initialChannelId {a0cb7871-e80a-439c-b997-0139d4e6ea7e} -parentPid 5300 -crashReporter "\\.\pipe\gecko-crash-server-pipe.5300" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 3 tab
            3⤵
            • Checks processor information in registry
            PID:3316
          • C:\Program Files\Mozilla Firefox\firefox.exe
            "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -parentBuildID 20250130195129 -prefsHandle 3952 -prefsLen 27323 -prefMapHandle 3956 -prefMapSize 270279 -ipcHandle 4024 -initialChannelId {1fa35d38-cc7b-49e1-b94a-e5e37ef53d58} -parentPid 5300 -crashReporter "\\.\pipe\gecko-crash-server-pipe.5300" -appDir "C:\Program Files\Mozilla Firefox\browser" - 4 rdd
            3⤵
              PID:4196
            • C:\Program Files\Mozilla Firefox\firefox.exe
              "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 4412 -prefsLen 34822 -prefMapHandle 4416 -prefMapSize 270279 -jsInitHandle 4420 -jsInitLen 253512 -parentBuildID 20250130195129 -ipcHandle 4428 -initialChannelId {bf839503-acf5-4428-bacd-b9b2730c7061} -parentPid 5300 -crashReporter "\\.\pipe\gecko-crash-server-pipe.5300" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 5 tab
              3⤵
              • Checks processor information in registry
              PID:2460
            • C:\Program Files\Mozilla Firefox\firefox.exe
              "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -parentBuildID 20250130195129 -sandboxingKind 0 -prefsHandle 5056 -prefsLen 35010 -prefMapHandle 5060 -prefMapSize 270279 -ipcHandle 5068 -initialChannelId {bc80acbe-27c2-40de-95a9-8d9eee958e5d} -parentPid 5300 -crashReporter "\\.\pipe\gecko-crash-server-pipe.5300" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 6 utility
              3⤵
              • Checks processor information in registry
              PID:1056
            • C:\Program Files\Mozilla Firefox\firefox.exe
              "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 5348 -prefsLen 32952 -prefMapHandle 5516 -prefMapSize 270279 -jsInitHandle 5600 -jsInitLen 253512 -parentBuildID 20250130195129 -ipcHandle 5372 -initialChannelId {400c3bfe-528b-4dcf-8027-1f96b2835a5f} -parentPid 5300 -crashReporter "\\.\pipe\gecko-crash-server-pipe.5300" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 7 tab
              3⤵
              • Checks processor information in registry
              PID:980
            • C:\Program Files\Mozilla Firefox\firefox.exe
              "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 5684 -prefsLen 32952 -prefMapHandle 5688 -prefMapSize 270279 -jsInitHandle 5692 -jsInitLen 253512 -parentBuildID 20250130195129 -ipcHandle 5700 -initialChannelId {ba9395bc-3d5a-4df5-a60e-5512725b78d1} -parentPid 5300 -crashReporter "\\.\pipe\gecko-crash-server-pipe.5300" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 8 tab
              3⤵
              • Checks processor information in registry
              PID:5360
            • C:\Program Files\Mozilla Firefox\firefox.exe
              "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 5872 -prefsLen 32952 -prefMapHandle 5876 -prefMapSize 270279 -jsInitHandle 5880 -jsInitLen 253512 -parentBuildID 20250130195129 -ipcHandle 5888 -initialChannelId {fb873abc-34ef-4c88-8411-34664f24f041} -parentPid 5300 -crashReporter "\\.\pipe\gecko-crash-server-pipe.5300" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 9 tab
              3⤵
              • Checks processor information in registry
              PID:5412
            • C:\Program Files\Mozilla Firefox\firefox.exe
              "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 3392 -prefsLen 32952 -prefMapHandle 3404 -prefMapSize 270279 -jsInitHandle 5632 -jsInitLen 253512 -parentBuildID 20250130195129 -ipcHandle 3084 -initialChannelId {a8c69366-472a-48d3-a6df-ee3810a0c78c} -parentPid 5300 -crashReporter "\\.\pipe\gecko-crash-server-pipe.5300" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 10 tab
              3⤵
              • Checks processor information in registry
              PID:5556
            • C:\Program Files\Mozilla Firefox\firefox.exe
              "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -parentBuildID 20250130195129 -sandboxingKind 1 -prefsHandle 3008 -prefsLen 35062 -prefMapHandle 6232 -prefMapSize 270279 -ipcHandle 6308 -initialChannelId {51b1c914-c3a7-4e51-93d4-ccfa0cce4244} -parentPid 5300 -crashReporter "\\.\pipe\gecko-crash-server-pipe.5300" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 11 utility
              3⤵
              • Checks processor information in registry
              PID:5104
        • C:\Windows\system32\AUDIODG.EXE
          C:\Windows\system32\AUDIODG.EXE 0x00000000000004E0 0x00000000000004C8
          1⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:5188

        Network

              MITRE ATT&CK Enterprise v16

              Replay Monitor

              Loading Replay Monitor...

              Downloads

              F58F0605C722D0D848D03D88AC8E3E50223F57B0

              • Path C:\Users\Admin\AppData\Local\Mozilla\Firefox\Profiles\1tjvljcf.default-release\cache2\entries\F58F0605C722D0D848D03D88AC8E3E50223F57B0
              • Size 13KB
              • SHA256 b3ad27bb850d1026124278d6327297108c51f60817cad0c2b2d490189115f52d
              • MD5 SHA1 SHA512 SSDEEP TLSH

              tmpaddon

              • Path C:\Users\Admin\AppData\Local\Temp\tmpaddon
              • Size 502KB
              • SHA256 87862f4bc8559fbe578389a9501dc01c4c585edb4bb03b238493327296d60171
              • MD5 SHA1 SHA512 SSDEEP TLSH

              tmpaddon

              • Path C:\Users\Admin\AppData\Local\Temp\tmpaddon
              • Size 11KB
              • SHA256 ddf3ba4e25a622276755133e0cce5605b83719c7cab3546e09acbfed00d6a986
              • MD5 SHA1 SHA512 SSDEEP TLSH

              data.safe.bin

              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\1tjvljcf.default-release\datareporting\glean\db\data.safe.bin
              • Size 6KB
              • SHA256 66946b6bb76603f2633d57439af11ba7ac6b23cc7771caa065ed958bd73d18aa
              • MD5 SHA1 SHA512 SSDEEP TLSH

              data.safe.tmp

              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\1tjvljcf.default-release\datareporting\glean\db\data.safe.tmp
              • Size 6KB
              • SHA256 8dc92a24517299b51cbc3cd2bde56f21f34c331e2b66131fc6d46ae9c0c68bba
              • MD5 SHA1 SHA512 SSDEEP TLSH

              data.safe.tmp

              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\1tjvljcf.default-release\datareporting\glean\db\data.safe.tmp
              • Size 7KB
              • SHA256 e63e458eaf8973a99c8437ce5b659d5e656a1ed685a33e6b2a49c311d11caf6e
              • MD5 SHA1 SHA512 SSDEEP TLSH

              events

              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\1tjvljcf.default-release\datareporting\glean\events\events
              • Size 1KB
              • SHA256 94625e7ed74b772f89c75fa8d904c89fdd899aee64fda0b2f0109771e3d9e682
              • MD5 SHA1 SHA512 TLSH

              065cae2a-add3-4812-9eb0-7f1db7104997

              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\1tjvljcf.default-release\datareporting\glean\pending_pings\065cae2a-add3-4812-9eb0-7f1db7104997
              • Size 235B
              • SHA256 a297b344e56cd2e94df30950333649f49b87b91908fa462203c5438726b298ff
              • MD5 SHA1 SHA512 TLSH

              1a594dfd-fda2-4604-82a9-2dfec3750355

              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\1tjvljcf.default-release\datareporting\glean\pending_pings\1a594dfd-fda2-4604-82a9-2dfec3750355
              • Size 2KB
              • SHA256 df77bb1d09348164841c7e2a5a84e2dfdd2c40ef3406718099118e1b2551f127
              • MD5 SHA1 SHA512 TLSH

              1fdd73f2-a694-44bf-ba9d-473230960014

              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\1tjvljcf.default-release\datareporting\glean\pending_pings\1fdd73f2-a694-44bf-ba9d-473230960014
              • Size 17KB
              • SHA256 82943491ae3977eef4b682e2cb3b777cf69cf8380bb278e6e163258c0d01660c
              • MD5 SHA1 SHA512 SSDEEP TLSH

              22fdbfa6-574d-4816-a6c4-03ba0e3dcdc1

              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\1tjvljcf.default-release\datareporting\glean\pending_pings\22fdbfa6-574d-4816-a6c4-03ba0e3dcdc1
              • Size 235B
              • SHA256 20bf2d2fd4b73ad9009648b89546a9ccc94d382743e14fa893bcbce3526f7a0b
              • MD5 SHA1 SHA512 TLSH

              47a67000-7ba0-4a0c-8458-bdd94ba9433e

              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\1tjvljcf.default-release\datareporting\glean\pending_pings\47a67000-7ba0-4a0c-8458-bdd94ba9433e
              • Size 883B
              • SHA256 8144b86535cb3f81265aaf05e82130c1ba4557c23bdc2fa9709f5d9f1c2c1fe2
              • MD5 SHA1 SHA512 TLSH

              e413fea3-265d-402f-b9be-e9736713e6bf

              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\1tjvljcf.default-release\datareporting\glean\pending_pings\e413fea3-265d-402f-b9be-e9736713e6bf
              • Size 886B
              • SHA256 825fa17fa1f578663515004a67ef1af2108274d3fabc7ad68dc7f0d7eedbfaea
              • MD5 SHA1 SHA512 TLSH

              extensions.json

              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\1tjvljcf.default-release\extensions.json
              • Size 16KB
              • SHA256 30ccef852d0cfbe379f4f53455e769880d97fdd824092a6c994819b6565ec025
              • MD5 SHA1 SHA512 SSDEEP TLSH

              gmpopenh264.dll

              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\1tjvljcf.default-release\gmp-gmpopenh264\2.6.0\gmpopenh264.dll
              • Size 1.1MB
              • SHA256 37c005a7789747b412d6c0a6a4c30d15732da3d857b4f94b744be1a67231b651
              • MD5 SHA1 SHA512 SSDEEP TLSH

              gmpopenh264.info

              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\1tjvljcf.default-release\gmp-gmpopenh264\2.6.0\gmpopenh264.info
              • Size 116B
              • SHA256 fe7686a6281f0ab519c32c788ce0da0d01640425018dcffcfcb81105757f6fe6
              • MD5 SHA1 SHA512 TLSH

              manifest.json

              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\1tjvljcf.default-release\gmp-widevinecdm\4.10.2934.0\manifest.json
              • Size 1001B
              • SHA256 25ac9b79df29fa869b4c9f4ca3bdbc3a85f6122f5a8efab5a1216d577099becc
              • MD5 SHA1 SHA512 TLSH

              widevinecdm.dll

              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\1tjvljcf.default-release\gmp-widevinecdm\4.10.2934.0\widevinecdm.dll
              • Size 18.9MB
              • SHA256 875a76af5b19622842c9b37fe77dce10ee83f27adbdcfcde9c814d4e1226d023
              • MD5 SHA1 SHA512 SSDEEP TLSH

              prefs-1.js

              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\1tjvljcf.default-release\prefs-1.js
              • Size 7KB
              • SHA256 9905dfab41f1c287e53cada81f3cc637c18c50a862541c1bd18356a0f61f9f3d
              • MD5 SHA1 SHA512 SSDEEP TLSH

              prefs.js

              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\1tjvljcf.default-release\prefs.js
              • Size 6KB
              • SHA256 fb95d4316f001926a986478882a1de84ce830ccd71de3f8a4db3ff63af75b7f7
              • MD5 SHA1 SHA512 SSDEEP TLSH

              prefs.js

              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\1tjvljcf.default-release\prefs.js
              • Size 6KB
              • SHA256 77eebddf702b8061132750ad4d0e3d2926e367b2d1768c6147ab718e06478083
              • MD5 SHA1 SHA512 SSDEEP TLSH

              recovery.baklz4

              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\1tjvljcf.default-release\sessionstore-backups\recovery.baklz4
              • Size 1KB
              • SHA256 90a26a27a30a98da8222e39febe9188a96734ef2b1b84da33621c5ff86f369d4
              • MD5 SHA1 SHA512 TLSH

              3870112724rsegmnoittet-es.sqlite

              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\1tjvljcf.default-release\storage\permanent\chrome\idb\3870112724rsegmnoittet-es.sqlite
              • Size 2.5MB
              • SHA256 62b9e1ce9d85ae8bc734df8ffa45b86d7e68fb25deca37000a5493b757af46e3
              • MD5 SHA1 SHA512 SSDEEP TLSH