Resubmissions

02/06/2026, 11:07

260602-m77chabt7y6

02/06/2026, 11:06

260602-m7vnpscx2n4

Analysis

  • max time kernel
    148s
  • max time network
    79s
  • platform
    windows10-ltsc_2021_x64
  • resource
    win10ltsc2021-20260513-en
  • resource tags

    arch:x64arch:x86image:win10ltsc2021-20260513-enlocale:en-usos:windows10-ltsc_2021-x64systemwindows
  • submitted
    02/06/2026, 11:07

General

  • Target
    http://xn--z19h.com.br
  • Sample260602-m77chabt7y
Score
1/10

Malware Config

Signatures

  • Checks processor information in registry 2 TTPs 18 IoCs

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

  • Modifies registry class 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of FindShellTrayWindow 6 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 36 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://xn--z19h.com.br"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4928
    • C:\Program Files\Mozilla Firefox\firefox.exe
      "C:\Program Files\Mozilla Firefox\firefox.exe" -osint -url http://xn--z19h.com.br
      2⤵
      • Checks processor information in registry
      • Modifies registry class
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4528
      • C:\Program Files\Mozilla Firefox\firefox.exe
        "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -parentBuildID 20250130195129 -prefsHandle 2016 -prefsLen 27100 -prefMapHandle 2020 -prefMapSize 270279 -ipcHandle 2104 -initialChannelId {ccd098da-f59f-4ce0-bf93-ad5380da5d51} -parentPid 4528 -crashReporter "\\.\pipe\gecko-crash-server-pipe.4528" -appDir "C:\Program Files\Mozilla Firefox\browser" - 1 gpu
        3⤵
          PID:5812
        • C:\Program Files\Mozilla Firefox\firefox.exe
          "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -parentBuildID 20250130195129 -prefsHandle 2516 -prefsLen 27136 -prefMapHandle 2520 -prefMapSize 270279 -ipcHandle 2528 -initialChannelId {0baafd66-2732-4cc0-a842-0debe4cb4e20} -parentPid 4528 -crashReporter "\\.\pipe\gecko-crash-server-pipe.4528" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 2 socket
          3⤵
            PID:2400
          • C:\Program Files\Mozilla Firefox\firefox.exe
            "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 3784 -prefsLen 25164 -prefMapHandle 3788 -prefMapSize 270279 -jsInitHandle 3792 -jsInitLen 253512 -parentBuildID 20250130195129 -ipcHandle 3800 -initialChannelId {b7c6acde-3317-492b-9119-8ea85acabc0b} -parentPid 4528 -crashReporter "\\.\pipe\gecko-crash-server-pipe.4528" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 3 tab
            3⤵
            • Checks processor information in registry
            PID:2028
          • C:\Program Files\Mozilla Firefox\firefox.exe
            "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -parentBuildID 20250130195129 -prefsHandle 3952 -prefsLen 27277 -prefMapHandle 3956 -prefMapSize 270279 -ipcHandle 4024 -initialChannelId {498a5e2e-8989-443a-8c9d-1761bd2a5254} -parentPid 4528 -crashReporter "\\.\pipe\gecko-crash-server-pipe.4528" -appDir "C:\Program Files\Mozilla Firefox\browser" - 4 rdd
            3⤵
              PID:2732
            • C:\Program Files\Mozilla Firefox\firefox.exe
              "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 4368 -prefsLen 34776 -prefMapHandle 4372 -prefMapSize 270279 -jsInitHandle 4376 -jsInitLen 253512 -parentBuildID 20250130195129 -ipcHandle 4384 -initialChannelId {b18bd1e2-9037-4686-be3d-8f8b239b277c} -parentPid 4528 -crashReporter "\\.\pipe\gecko-crash-server-pipe.4528" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 5 tab
              3⤵
              • Checks processor information in registry
              PID:5048
            • C:\Program Files\Mozilla Firefox\firefox.exe
              "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -parentBuildID 20250130195129 -sandboxingKind 0 -prefsHandle 4880 -prefsLen 34906 -prefMapHandle 4888 -prefMapSize 270279 -ipcHandle 4900 -initialChannelId {b3ad0368-b7fb-4665-8664-e03765f2b450} -parentPid 4528 -crashReporter "\\.\pipe\gecko-crash-server-pipe.4528" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 6 utility
              3⤵
              • Checks processor information in registry
              PID:2492
            • C:\Program Files\Mozilla Firefox\firefox.exe
              "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 5156 -prefsLen 32845 -prefMapHandle 5160 -prefMapSize 270279 -jsInitHandle 5164 -jsInitLen 253512 -parentBuildID 20250130195129 -ipcHandle 5172 -initialChannelId {ab4bb361-d1ea-4769-8038-00d96ff56031} -parentPid 4528 -crashReporter "\\.\pipe\gecko-crash-server-pipe.4528" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 7 tab
              3⤵
              • Checks processor information in registry
              PID:4352
            • C:\Program Files\Mozilla Firefox\firefox.exe
              "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 5372 -prefsLen 32845 -prefMapHandle 5376 -prefMapSize 270279 -jsInitHandle 5380 -jsInitLen 253512 -parentBuildID 20250130195129 -ipcHandle 5160 -initialChannelId {782b9259-6f64-423e-8d4c-feea3125bfb2} -parentPid 4528 -crashReporter "\\.\pipe\gecko-crash-server-pipe.4528" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 8 tab
              3⤵
              • Checks processor information in registry
              PID:3048
            • C:\Program Files\Mozilla Firefox\firefox.exe
              "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 5556 -prefsLen 32845 -prefMapHandle 5560 -prefMapSize 270279 -jsInitHandle 5564 -jsInitLen 253512 -parentBuildID 20250130195129 -ipcHandle 5568 -initialChannelId {9682da15-9d72-4fa9-ada0-123ec761b6f3} -parentPid 4528 -crashReporter "\\.\pipe\gecko-crash-server-pipe.4528" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 9 tab
              3⤵
              • Checks processor information in registry
              PID:4536

        Network

              MITRE ATT&CK Enterprise v16

              Replay Monitor

              Loading Replay Monitor...

              Downloads

              activity-stream.discovery_stream.json

              • Path C:\Users\Admin\AppData\Local\Mozilla\Firefox\Profiles\16loo4mf.default-release\activity-stream.discovery_stream.json
              • Size 75KB
              • SHA256 97ee0cfc9309394e0eca561157a68bd565c76e137d33cee7be42bf5507034138
              • MD5 SHA1 SHA512 SSDEEP TLSH

              data.safe.tmp

              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\16loo4mf.default-release\datareporting\glean\db\data.safe.tmp
              • Size 6KB
              • SHA256 c9ba6378a35f3fbc58ce57f274fe110740caedd68cdf4a0872791c19fae1b6d8
              • MD5 SHA1 SHA512 SSDEEP TLSH

              events

              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\16loo4mf.default-release\datareporting\glean\events\events
              • Size 1KB
              • SHA256 d91f4af6489a850fb0a3d5f7aa27faed3e0bb85dfb7377a4b4d10b3395358591
              • MD5 SHA1 SHA512 TLSH

              43ed47f6-0541-4741-92d9-627639494440

              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\16loo4mf.default-release\datareporting\glean\pending_pings\43ed47f6-0541-4741-92d9-627639494440
              • Size 235B
              • SHA256 4fb98b27b1d8495bd0de6c2f8f5f01ea6522e8af69603d2b967a7260df6a044e
              • MD5 SHA1 SHA512 TLSH

              81765c2f-af89-4eba-b0f1-8a3fad368932

              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\16loo4mf.default-release\datareporting\glean\pending_pings\81765c2f-af89-4eba-b0f1-8a3fad368932
              • Size 235B
              • SHA256 aeae7720b91a731bc1434c98dcf819499b3d000b47adc088589fe7c6929c5625
              • MD5 SHA1 SHA512 TLSH

              c1412818-9047-4cb0-a4e0-68764b44ec67

              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\16loo4mf.default-release\datareporting\glean\pending_pings\c1412818-9047-4cb0-a4e0-68764b44ec67
              • Size 2KB
              • SHA256 0e1c2e8dcf98de1a54a099a96f7e010fefd70b984cc1af78222408ef17caf17a
              • MD5 SHA1 SHA512 TLSH

              ce1efea3-f47d-46bc-a9cc-cfc8ee360b7d

              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\16loo4mf.default-release\datareporting\glean\pending_pings\ce1efea3-f47d-46bc-a9cc-cfc8ee360b7d
              • Size 883B
              • SHA256 9c3d095102c4112ed8035f303934e8f0dfee92c306a194157774bc0fa0945fd9
              • MD5 SHA1 SHA512 TLSH

              d5a116a7-8428-4db4-b66c-9d237351b3a8

              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\16loo4mf.default-release\datareporting\glean\pending_pings\d5a116a7-8428-4db4-b66c-9d237351b3a8
              • Size 16KB
              • SHA256 840613d4010b1875334a2b764909798f44cd136e12111b6a700d38e8652d64b9
              • MD5 SHA1 SHA512 SSDEEP TLSH

              dd7953b6-10d8-4161-bb0b-81d83c2d21f7

              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\16loo4mf.default-release\datareporting\glean\pending_pings\dd7953b6-10d8-4161-bb0b-81d83c2d21f7
              • Size 886B
              • SHA256 2797c7c32ce1c14893025919542c2fb5a2a40d2b7aaff40ed5c7eaf1299d7642
              • MD5 SHA1 SHA512 TLSH

              prefs-1.js

              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\16loo4mf.default-release\prefs-1.js
              • Size 7KB
              • SHA256 d3bb4206251357d232788d8be2ee9f21a9ac820209d66567006d6969ed91e80a
              • MD5 SHA1 SHA512 SSDEEP TLSH

              prefs.js

              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\16loo4mf.default-release\prefs.js
              • Size 6KB
              • SHA256 6fea3b3a1e61cbfaef09e2cccafc9a36f7177a5b1f606c260aae6a073b474e4f
              • MD5 SHA1 SHA512 SSDEEP TLSH

              prefs.js

              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\16loo4mf.default-release\prefs.js
              • Size 6KB
              • SHA256 c0fe6688149ee94371cf13e91f178b10a6fed215a6e09ad55c4a1dc76e677ddf
              • MD5 SHA1 SHA512 SSDEEP TLSH