Resubmissions

17/04/2026, 17:06

260417-vmfcaagz3v6

17/04/2026, 17:00

260417-vh7kzagy411

17/04/2026, 16:56

260417-vf35rsdz3r1

Analysis

  • geolocation tags

    brbrazilsouth-america
  • user interaction
    yes
  • max time kernel
    299s
  • max time network
    207s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260130-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260130-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    17/04/2026, 17:06

General

  • Target
    https://66.36.109.208.host.secureserver.net/Y19PllgxvrHkK/DxHVxQAkxuApP6Y4/0ays/50669909/ALS3oT5lDAONrKx5yo2/650657525037__
  • Sample260417-vmfcaagz3v
Score
6/10

Malware Config

Signatures

  • Drops desktop.ini file(s) 3 IoCs
  • Checks processor information in registry 2 TTPs 22 IoCs

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

  • Modifies registry class 3 IoCs
  • NTFS ADS 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of FindShellTrayWindow 8 IoCs
  • Suspicious use of SetWindowsHookEx 26 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://66.36.109.208.host.secureserver.net/Y19PllgxvrHkK/DxHVxQAkxuApP6Y4/0ays/50669909/ALS3oT5lDAONrKx5yo2/650657525037__"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:5396
    • C:\Program Files\Mozilla Firefox\firefox.exe
      "C:\Program Files\Mozilla Firefox\firefox.exe" -osint -url https://66.36.109.208.host.secureserver.net/Y19PllgxvrHkK/DxHVxQAkxuApP6Y4/0ays/50669909/ALS3oT5lDAONrKx5yo2/650657525037__
      2⤵
      • Drops desktop.ini file(s)
      • Checks processor information in registry
      • Modifies registry class
      • NTFS ADS
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:5408
      • C:\Program Files\Mozilla Firefox\firefox.exe
        "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -parentBuildID 20250130195129 -prefsHandle 2000 -prefsLen 27099 -prefMapHandle 2004 -prefMapSize 270279 -ipcHandle 2060 -initialChannelId {f9920378-0e26-456d-8d11-f78f2755b9b2} -parentPid 5408 -crashReporter "\\.\pipe\gecko-crash-server-pipe.5408" -appDir "C:\Program Files\Mozilla Firefox\browser" - 1 gpu
        3⤵
          PID:4840
        • C:\Program Files\Mozilla Firefox\firefox.exe
          "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -parentBuildID 20250130195129 -prefsHandle 2484 -prefsLen 27135 -prefMapHandle 2488 -prefMapSize 270279 -ipcHandle 2496 -initialChannelId {45b1c498-4343-4ce3-8e14-3d8188cc517c} -parentPid 5408 -crashReporter "\\.\pipe\gecko-crash-server-pipe.5408" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 2 socket
          3⤵
          • Checks processor information in registry
          PID:6080
        • C:\Program Files\Mozilla Firefox\firefox.exe
          "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 3696 -prefsLen 25164 -prefMapHandle 3700 -prefMapSize 270279 -jsInitHandle 3704 -jsInitLen 253512 -parentBuildID 20250130195129 -ipcHandle 3712 -initialChannelId {28567eab-e125-4c76-a766-df30bd13b9a1} -parentPid 5408 -crashReporter "\\.\pipe\gecko-crash-server-pipe.5408" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 3 tab
          3⤵
          • Checks processor information in registry
          PID:2096
        • C:\Program Files\Mozilla Firefox\firefox.exe
          "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -parentBuildID 20250130195129 -prefsHandle 3864 -prefsLen 27276 -prefMapHandle 3868 -prefMapSize 270279 -ipcHandle 3964 -initialChannelId {6ca661b6-cba4-4fd8-8469-2b8b55ed1de1} -parentPid 5408 -crashReporter "\\.\pipe\gecko-crash-server-pipe.5408" -appDir "C:\Program Files\Mozilla Firefox\browser" - 4 rdd
          3⤵
            PID:6116
          • C:\Program Files\Mozilla Firefox\firefox.exe
            "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 2832 -prefsLen 34775 -prefMapHandle 2836 -prefMapSize 270279 -jsInitHandle 2844 -jsInitLen 253512 -parentBuildID 20250130195129 -ipcHandle 4440 -initialChannelId {16c4f8ab-dc8d-469a-add0-43b04c5407bd} -parentPid 5408 -crashReporter "\\.\pipe\gecko-crash-server-pipe.5408" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 5 tab
            3⤵
            • Checks processor information in registry
            PID:5160
          • C:\Program Files\Mozilla Firefox\firefox.exe
            "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -parentBuildID 20250130195129 -sandboxingKind 0 -prefsHandle 5016 -prefsLen 34905 -prefMapHandle 5020 -prefMapSize 270279 -ipcHandle 5028 -initialChannelId {a2f9dad7-8580-4253-aad1-78e309fce5a6} -parentPid 5408 -crashReporter "\\.\pipe\gecko-crash-server-pipe.5408" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 6 utility
            3⤵
            • Checks processor information in registry
            PID:5980
          • C:\Program Files\Mozilla Firefox\firefox.exe
            "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 5448 -prefsLen 32952 -prefMapHandle 5452 -prefMapSize 270279 -jsInitHandle 5456 -jsInitLen 253512 -parentBuildID 20250130195129 -ipcHandle 5464 -initialChannelId {c29436e0-08e3-4fbc-8e3b-3d0dd74c9335} -parentPid 5408 -crashReporter "\\.\pipe\gecko-crash-server-pipe.5408" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 7 tab
            3⤵
            • Checks processor information in registry
            PID:2620
          • C:\Program Files\Mozilla Firefox\firefox.exe
            "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 5580 -prefsLen 32952 -prefMapHandle 5584 -prefMapSize 270279 -jsInitHandle 5588 -jsInitLen 253512 -parentBuildID 20250130195129 -ipcHandle 5596 -initialChannelId {0cb79e00-ab5c-4732-8bf2-46ac61f447c2} -parentPid 5408 -crashReporter "\\.\pipe\gecko-crash-server-pipe.5408" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 8 tab
            3⤵
            • Checks processor information in registry
            PID:396
          • C:\Program Files\Mozilla Firefox\firefox.exe
            "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 5448 -prefsLen 32952 -prefMapHandle 5452 -prefMapSize 270279 -jsInitHandle 5456 -jsInitLen 253512 -parentBuildID 20250130195129 -ipcHandle 5600 -initialChannelId {f4c06b60-5deb-4321-919f-a61035df2bb2} -parentPid 5408 -crashReporter "\\.\pipe\gecko-crash-server-pipe.5408" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 9 tab
            3⤵
            • Checks processor information in registry
            PID:412
      • C:\Windows\system32\OpenWith.exe
        C:\Windows\system32\OpenWith.exe -Embedding
        1⤵
        • Modifies registry class
        • Suspicious use of SetWindowsHookEx
        PID:4420
      • C:\Windows\system32\OpenWith.exe
        C:\Windows\system32\OpenWith.exe -Embedding
        1⤵
        • Modifies registry class
        • Suspicious use of SetWindowsHookEx
        PID:5460

      Network

            MITRE ATT&CK Enterprise v16

            Replay Monitor

            Loading Replay Monitor...

            Downloads

            CD1C116DEEE8F4F97C1806976E10E7E2B349E486

            • Path C:\Users\Admin\AppData\Local\Mozilla\Firefox\Profiles\9hv4mshu.default-release\cache2\entries\CD1C116DEEE8F4F97C1806976E10E7E2B349E486
            • Size 13KB
            • SHA256 89c592ec773c6059093d13307cc51740475133d449eeafeba34732f07acd5670
            • MD5 SHA1 SHA512 SSDEEP TLSH

            3cab2a03-9928-418d-ba4c-df811dd05928.zip

            • Path C:\Users\Admin\AppData\Local\Temp\3cab2a03-9928-418d-ba4c-df811dd05928.zip
            • Size 3.7MB
            • SHA256 4ef536eee4ee7d4cdd8b9b1e02b3e7e02ab0135bd8f3dbb2d6d0863bbc0776c6
            • 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\9hv4mshu.default-release\datareporting\glean\db\data.safe.tmp
            • Size 47KB
            • SHA256 bf270a9e592be30361292293afc0bfdbfcab1a5678105955423bce6effe9bdd3
            • MD5 SHA1 SHA512 SSDEEP TLSH

            data.safe.tmp

            • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\9hv4mshu.default-release\datareporting\glean\db\data.safe.tmp
            • Size 6KB
            • SHA256 0eba25cc9cd761707374d7871d277125ad3ab940f2ad9177266b5f99f19120b2
            • MD5 SHA1 SHA512 SSDEEP TLSH

            data.safe.tmp

            • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\9hv4mshu.default-release\datareporting\glean\db\data.safe.tmp
            • Size 3KB
            • SHA256 0260f2586429507dbc2b920a048411e3a9e711ec230c4ddcffb4bc49420c7995
            • MD5 SHA1 SHA512 TLSH

            data.safe.tmp

            • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\9hv4mshu.default-release\datareporting\glean\db\data.safe.tmp
            • Size 6KB
            • SHA256 28b3c909493de20d4a5148b4d25b4d6aacf0701ee3b85f71ee581efa6344d3ad
            • MD5 SHA1 SHA512 SSDEEP TLSH

            data.safe.tmp

            • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\9hv4mshu.default-release\datareporting\glean\db\data.safe.tmp
            • Size 28KB
            • SHA256 1928f93e19b127361ec0bd01d156214e29091bb960188e79746c1be74cdc8669
            • MD5 SHA1 SHA512 SSDEEP TLSH

            data.safe.tmp

            • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\9hv4mshu.default-release\datareporting\glean\db\data.safe.tmp
            • Size 28KB
            • SHA256 08dbcac8295a203be348a5d11d4741b29817059722e04b8d1a54d4b950fd7ccc
            • MD5 SHA1 SHA512 SSDEEP TLSH

            data.safe.tmp

            • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\9hv4mshu.default-release\datareporting\glean\db\data.safe.tmp
            • Size 28KB
            • SHA256 142d639e98705ade7353a6faff641b52510b9f370c18a8484b9fde99e6336ee2
            • MD5 SHA1 SHA512 SSDEEP TLSH

            events

            • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\9hv4mshu.default-release\datareporting\glean\events\events
            • Size 1KB
            • SHA256 aeb1b3cdd2a2e1be009f84aee284c2092f8b5d158455290cd9b9ac93eba5e50c
            • MD5 SHA1 SHA512 TLSH

            0d694443-ef65-4419-9478-16904c84fc5d

            • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\9hv4mshu.default-release\datareporting\glean\pending_pings\0d694443-ef65-4419-9478-16904c84fc5d
            • Size 16KB
            • SHA256 3211d0f8e40717d434f73ce885ce703140e989866ed20f8a59c9f8f5a73c21b1
            • MD5 SHA1 SHA512 SSDEEP TLSH

            1400149b-315e-49be-b128-70aa2c44e3ef

            • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\9hv4mshu.default-release\datareporting\glean\pending_pings\1400149b-315e-49be-b128-70aa2c44e3ef
            • Size 2KB
            • SHA256 ec29a1db6d3a6431b03204750618f36cfea10a2b3ee6c7924e93583f621264ab
            • MD5 SHA1 SHA512 TLSH

            1a763d03-9958-4734-9741-2e4bddc22e36

            • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\9hv4mshu.default-release\datareporting\glean\pending_pings\1a763d03-9958-4734-9741-2e4bddc22e36
            • Size 886B
            • SHA256 8129210e77d254c4afd6815173213b4d2ea2fe56a771497a3426f67f8611dd40
            • MD5 SHA1 SHA512 TLSH

            1f9e9d47-8140-4bee-be06-80e49f5d7ec2

            • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\9hv4mshu.default-release\datareporting\glean\pending_pings\1f9e9d47-8140-4bee-be06-80e49f5d7ec2
            • Size 235B
            • SHA256 a84a726970115a1890595eb7aeff45593efcf20215eacba06e99b3782ba98164
            • MD5 SHA1 SHA512 TLSH

            2f537a97-fb1b-489a-9d3c-7e7b3fcc40d8

            • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\9hv4mshu.default-release\datareporting\glean\pending_pings\2f537a97-fb1b-489a-9d3c-7e7b3fcc40d8
            • Size 235B
            • SHA256 9e28f1ed383acb671d8778bc61d4370ec931c2534383fd89bee947eeb501dce9
            • MD5 SHA1 SHA512 TLSH

            c093e749-3f65-4816-ac9d-4e5c2971bad3

            • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\9hv4mshu.default-release\datareporting\glean\pending_pings\c093e749-3f65-4816-ac9d-4e5c2971bad3
            • Size 883B
            • SHA256 f43b972e7c280b5e7da831d7b240dbe86c1a47a7f76c53c7265a769a27ec97ff
            • MD5 SHA1 SHA512 TLSH

            extensions.json

            • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\9hv4mshu.default-release\extensions.json
            • Size 16KB
            • SHA256 99eaf327097ef5694c997586852f102ca4da1de87c22a1b61d1ed910c42ee7ea
            • MD5 SHA1 SHA512 SSDEEP TLSH

            gmpopenh264.dll

            • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\9hv4mshu.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\9hv4mshu.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\9hv4mshu.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\9hv4mshu.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\9hv4mshu.default-release\prefs-1.js
            • Size 7KB
            • SHA256 4bd6a6ea4338e1aa18ba84a951a9f921691a1b9839de251dc7ac1251161add61
            • MD5 SHA1 SHA512 SSDEEP TLSH

            prefs-1.js

            • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\9hv4mshu.default-release\prefs-1.js
            • Size 12KB
            • SHA256 4054e992d3dc2a98944086a32d8cef8b1eb8abbad79a6b270fb1adee525fccb6
            • MD5 SHA1 SHA512 SSDEEP TLSH

            prefs.js

            • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\9hv4mshu.default-release\prefs.js
            • Size 6KB
            • SHA256 07319f10439ae0ebd0d7674b47ba9a44e1da94131e3ee010446d4704482a3fb3
            • MD5 SHA1 SHA512 SSDEEP TLSH

            prefs.js

            • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\9hv4mshu.default-release\prefs.js
            • Size 6KB
            • SHA256 26dacd71f8893564d7b5cb93879e7adb4e29baef66f516b534e3ecebe6b8aae4
            • MD5 SHA1 SHA512 SSDEEP TLSH

            recovery.baklz4

            • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\9hv4mshu.default-release\sessionstore-backups\recovery.baklz4
            • Size 1KB
            • SHA256 816a9d6faa71eb057bef5ad38f1df731815511e02d10bd7220fcfcdd0e44d6b8
            • MD5 SHA1 SHA512 TLSH

            recovery.jsonlz4

            • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\9hv4mshu.default-release\sessionstore-backups\recovery.jsonlz4
            • Size 1KB
            • SHA256 1edb2c93ce20ba387bfcfdd8bdd683cf5cadaeef4133fee1cc062e6ec9d71bb5
            • MD5 SHA1 SHA512 TLSH

            3870112724rsegmnoittet-es.sqlite

            • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\9hv4mshu.default-release\storage\permanent\chrome\idb\3870112724rsegmnoittet-es.sqlite
            • Size 3.2MB
            • SHA256 1678891cb9e92fe551731693d2d32357d05daf62b0c072ca564810b6937b5378
            • MD5 SHA1 SHA512 SSDEEP TLSH

            memory/4420-4601-0x000001CC45B10000-0x000001CC45C3A000-memory.dmp

            memory/5460-4652-0x0000020260D50000-0x0000020260E7A000-memory.dmp