Analysis

  • max time kernel
    109s
  • max time network
    112s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260513-en
  • resource tags

    arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    18/07/2026, 04:16

General

  • Target
    https://data3.exloader.net/ExLoader_Installer.exe
  • Sample260718-ev3jsaf15n

Malware Config

Signatures

  • Downloads MZ/PE file 1 IoCs
  • Subvert Trust Controls: Mark-of-the-Web Bypass 1 TTPs 1 IoCs

    When files are downloaded from the Internet, they are tagged with a hidden NTFS Alternate Data Stream (ADS) named Zone.Identifier with a specific value known as the MOTW.

  • Checks processor information in registry 2 TTPs 18 IoCs

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

  • NTFS ADS 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 7 IoCs
  • Suspicious use of SetWindowsHookEx 4 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 "https://data3.exloader.net/ExLoader_Installer.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2636
    • C:\Program Files\Mozilla Firefox\firefox.exe
      "C:\Program Files\Mozilla Firefox\firefox.exe" -osint -url https://data3.exloader.net/ExLoader_Installer.exe
      2⤵
      • Downloads MZ/PE file
      • Subvert Trust Controls: Mark-of-the-Web Bypass
      • Checks processor information in registry
      • NTFS ADS
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1436
      • C:\Program Files\Mozilla Firefox\firefox.exe
        "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -parentBuildID 20250130195129 -prefsHandle 1984 -prefsLen 27097 -prefMapHandle 1988 -prefMapSize 270279 -ipcHandle 2064 -initialChannelId {e66b7040-9a1b-4964-90ba-59fb19e5e427} -parentPid 1436 -crashReporter "\\.\pipe\gecko-crash-server-pipe.1436" -appDir "C:\Program Files\Mozilla Firefox\browser" - 1 gpu
        3⤵
          PID:3556
        • C:\Program Files\Mozilla Firefox\firefox.exe
          "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -parentBuildID 20250130195129 -prefsHandle 2448 -prefsLen 27133 -prefMapHandle 2452 -prefMapSize 270279 -ipcHandle 2460 -initialChannelId {c9a4da77-cf74-4aa5-b8c0-89de88d3c03d} -parentPid 1436 -crashReporter "\\.\pipe\gecko-crash-server-pipe.1436" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 2 socket
          3⤵
            PID:3376
          • C:\Program Files\Mozilla Firefox\firefox.exe
            "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 3768 -prefsLen 25164 -prefMapHandle 3772 -prefMapSize 270279 -jsInitHandle 3776 -jsInitLen 253512 -parentBuildID 20250130195129 -ipcHandle 3784 -initialChannelId {1d7332b5-41dc-445e-b1e0-39d21be64b80} -parentPid 1436 -crashReporter "\\.\pipe\gecko-crash-server-pipe.1436" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 3 tab
            3⤵
            • Checks processor information in registry
            PID:3916
          • C:\Program Files\Mozilla Firefox\firefox.exe
            "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -parentBuildID 20250130195129 -prefsHandle 3964 -prefsLen 27274 -prefMapHandle 3968 -prefMapSize 270279 -ipcHandle 4036 -initialChannelId {6341ae6b-c637-41be-aec6-5c3055793ede} -parentPid 1436 -crashReporter "\\.\pipe\gecko-crash-server-pipe.1436" -appDir "C:\Program Files\Mozilla Firefox\browser" - 4 rdd
            3⤵
              PID:3568
            • C:\Program Files\Mozilla Firefox\firefox.exe
              "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 4340 -prefsLen 34773 -prefMapHandle 4344 -prefMapSize 270279 -jsInitHandle 4348 -jsInitLen 253512 -parentBuildID 20250130195129 -ipcHandle 1668 -initialChannelId {0460e5cf-f6d5-4251-9bc4-1a9e0e5ad54e} -parentPid 1436 -crashReporter "\\.\pipe\gecko-crash-server-pipe.1436" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 5 tab
              3⤵
              • Checks processor information in registry
              PID:1568
            • C:\Program Files\Mozilla Firefox\firefox.exe
              "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -parentBuildID 20250130195129 -sandboxingKind 0 -prefsHandle 2752 -prefsLen 35010 -prefMapHandle 4984 -prefMapSize 270279 -ipcHandle 2760 -initialChannelId {02fff042-f9c4-415c-9c06-6028f63a99e1} -parentPid 1436 -crashReporter "\\.\pipe\gecko-crash-server-pipe.1436" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 6 utility
              3⤵
              • Checks processor information in registry
              PID:1308
            • C:\Program Files\Mozilla Firefox\firefox.exe
              "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 5264 -prefsLen 32900 -prefMapHandle 5268 -prefMapSize 270279 -jsInitHandle 5272 -jsInitLen 253512 -parentBuildID 20250130195129 -ipcHandle 5280 -initialChannelId {91c94a9d-d382-414d-8749-af0f820da267} -parentPid 1436 -crashReporter "\\.\pipe\gecko-crash-server-pipe.1436" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 7 tab
              3⤵
              • Checks processor information in registry
              PID:236
            • C:\Program Files\Mozilla Firefox\firefox.exe
              "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 5468 -prefsLen 32900 -prefMapHandle 5472 -prefMapSize 270279 -jsInitHandle 5476 -jsInitLen 253512 -parentBuildID 20250130195129 -ipcHandle 5484 -initialChannelId {bac733ec-025f-4b94-b901-32fbb95e7005} -parentPid 1436 -crashReporter "\\.\pipe\gecko-crash-server-pipe.1436" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 8 tab
              3⤵
              • Checks processor information in registry
              PID:5836
            • C:\Program Files\Mozilla Firefox\firefox.exe
              "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 5660 -prefsLen 32952 -prefMapHandle 5664 -prefMapSize 270279 -jsInitHandle 5668 -jsInitLen 253512 -parentBuildID 20250130195129 -ipcHandle 5496 -initialChannelId {eedbb46f-e1e5-46da-9f70-376d08fba632} -parentPid 1436 -crashReporter "\\.\pipe\gecko-crash-server-pipe.1436" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 9 tab
              3⤵
              • Checks processor information in registry
              PID:3204

        Network

              MITRE ATT&CK Enterprise v16

              Replay Monitor

              Loading Replay Monitor...

              Downloads

              4E3D8FAAF804AAC616BC48BD4AFA8BE284516FCF

              • Path C:\Users\Admin\AppData\Local\Mozilla\Firefox\Profiles\qur8qcyx.default-release\cache2\entries\4E3D8FAAF804AAC616BC48BD4AFA8BE284516FCF
              • Size 15KB
              • SHA256 6265b7a5bfbb7733a33b064ac2721481dae8e6f90d3d3ebfa3394689d6f988fd
              • MD5 SHA1 SHA512 SSDEEP TLSH

              9512A4488B00CC053350DAC32D417B4A35C11513

              • Path C:\Users\Admin\AppData\Local\Mozilla\Firefox\Profiles\qur8qcyx.default-release\cache2\entries\9512A4488B00CC053350DAC32D417B4A35C11513
              • Size 15KB
              • SHA256 9c79534b2adf3274aa0f5f640533b347a3c88aeb9bd22b5cc11e8f03999c524a
              • MD5 SHA1 SHA512 SSDEEP TLSH

              tmpaddon

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

              tmpaddon

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

              data.safe.tmp

              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\qur8qcyx.default-release\datareporting\glean\db\data.safe.tmp
              • Size 7KB
              • SHA256 712c46cc254492f74495b8c2d5f301c4365ab3c2cc342c77d0970ce8aed0b752
              • MD5 SHA1 SHA512 SSDEEP TLSH

              events

              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\qur8qcyx.default-release\datareporting\glean\events\events
              • Size 1KB
              • SHA256 b935cbe9f1eada10c482bb055ad0f5bba61e79efcca1cdf915b5d9ee869a742a
              • MD5 SHA1 SHA512 TLSH

              00fa8465-5415-4b4b-b7ab-ee6dfd709395

              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\qur8qcyx.default-release\datareporting\glean\pending_pings\00fa8465-5415-4b4b-b7ab-ee6dfd709395
              • Size 883B
              • SHA256 a7c94504d860100df5b078393199b6cc2c325db535eabb127d590423661e4a1b
              • MD5 SHA1 SHA512 TLSH

              49121235-6b91-41d4-b582-d2ea23c9bed9

              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\qur8qcyx.default-release\datareporting\glean\pending_pings\49121235-6b91-41d4-b582-d2ea23c9bed9
              • Size 886B
              • SHA256 7f7871113b85dff6a827bafd758ee792a5caced9555f60ae9eb45fb0d3a24338
              • MD5 SHA1 SHA512 TLSH

              abfd4b4f-3006-4849-9b3f-37b56b8c67e2

              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\qur8qcyx.default-release\datareporting\glean\pending_pings\abfd4b4f-3006-4849-9b3f-37b56b8c67e2
              • Size 16KB
              • SHA256 f2125e30c9a87b00a0b4b2bb9d3cdfdf983b973b01a597f57ec2806c9d08c85a
              • MD5 SHA1 SHA512 SSDEEP TLSH

              ac685ed3-5529-4dd6-940c-0e4bc51924c0

              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\qur8qcyx.default-release\datareporting\glean\pending_pings\ac685ed3-5529-4dd6-940c-0e4bc51924c0
              • Size 235B
              • SHA256 8102d5528ab7696536a5fbc4ab783be22fb3bde3f657938e76f25f71922ef9a2
              • MD5 SHA1 SHA512 TLSH

              ace6edec-75e5-4641-b8dd-47ea9bfc655c

              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\qur8qcyx.default-release\datareporting\glean\pending_pings\ace6edec-75e5-4641-b8dd-47ea9bfc655c
              • Size 235B
              • SHA256 ba119a21a7a5271ccf286a0fe0bc92c9d0e25cc35050b88052b9fd6c81c1c022
              • MD5 SHA1 SHA512 TLSH

              ca6935bc-85cb-45dd-a166-e0ac7dc43054

              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\qur8qcyx.default-release\datareporting\glean\pending_pings\ca6935bc-85cb-45dd-a166-e0ac7dc43054
              • Size 2KB
              • SHA256 d5b23f84de5d7d9bdfc4fb1a4b55d70cbddd99f3f67f6e156641ba547d05202b
              • MD5 SHA1 SHA512 TLSH

              extensions.json

              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\qur8qcyx.default-release\extensions.json
              • Size 16KB
              • SHA256 41e9a4c23ed6ffc969f533cd9e73717308f9f30b4758eef4f30c6929a5e570c0
              • MD5 SHA1 SHA512 SSDEEP TLSH

              gmpopenh264.dll

              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\qur8qcyx.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\qur8qcyx.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\qur8qcyx.default-release\gmp-widevinecdm\4.10.3050.0\manifest.json
              • Size 1002B
              • SHA256 2894996540fabbd346ed4ced8386ca77d6badf60372e307ee15c906c30340d0d
              • MD5 SHA1 SHA512 TLSH

              widevinecdm.dll

              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\qur8qcyx.default-release\gmp-widevinecdm\4.10.3050.0\widevinecdm.dll
              • Size 21.6MB
              • SHA256 f1216e26ee8c27f938d7722427d29f190e569ed83d0ba16ea872cae684b97602
              • MD5 SHA1 SHA512 SSDEEP TLSH

              prefs-1.js

              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\qur8qcyx.default-release\prefs-1.js
              • Size 7KB
              • SHA256 124b7ad3fe4f8048ba8a5c2e14940ef26faae3a2adc4b0c33b5ac0a949aa4c13
              • MD5 SHA1 SHA512 SSDEEP TLSH

              prefs-1.js

              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\qur8qcyx.default-release\prefs-1.js
              • Size 6KB
              • SHA256 46d8530fa34c05599bc2d1e46aa040fee0fc7fe56e4500fec5fc3608cb1d989b
              • MD5 SHA1 SHA512 SSDEEP TLSH

              prefs.js

              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\qur8qcyx.default-release\prefs.js
              • Size 6KB
              • SHA256 8e57225f147a6289277b42ba3d5d3c372ddb4d63655e66016cc3b0f9720fb98b
              • MD5 SHA1 SHA512 SSDEEP TLSH

              recovery.baklz4

              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\qur8qcyx.default-release\sessionstore-backups\recovery.baklz4
              • Size 1KB
              • SHA256 a47cc7c53ae9694843c68d7e7bab3e4b8ad6e5d8f5df7fbf70fa24d2c5f15f85
              • MD5 SHA1 SHA512 TLSH

              3870112724rsegmnoittet-es.sqlite

              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\qur8qcyx.default-release\storage\permanent\chrome\idb\3870112724rsegmnoittet-es.sqlite
              • Size 4.1MB
              • SHA256 0000a52cff1d0c747f8c72c8078c2cb7dbe319be1cf9de225f57481ba67a1cf7
              • MD5 SHA1 SHA512 SSDEEP TLSH

              ExLoader_Installer.exe

              • Path C:\Users\Admin\Downloads\ExLoader_Installer.exe
              • Size 22.2MB
              • SHA256 59d78963e8f56b25b95c18d5c672789ddb62ee0e186eda49250cef99edad78b9
              • MD5 SHA1 SHA512 SSDEEP TLSH