Analysis

  • max time kernel
    148s
  • max time network
    151s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    30/09/2026, 23:16

General

  • Target
    2026-09-29_1fed36f96155c8280c3f6dfcf2ef6f6a_darkgate_elex_floxif_glassworm_remcos_stealc_stop.exe
  • Size 6.0MB
  • Sample260930-29h51swbrd
  • SHA256 625c8e98b22fada83d974dc396a7f1e287fc92ddfcdc7bf9c8692c302e34b945
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Family: Floxif, Floodfix

    Floxif aka FloodFix is a file-changing trojan and backdoor written in C++.

  • Detects Floxif payload 1 IoCs
  • Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers 2 IoCs
  • Detects executables containing SQL queries to confidential data stores. Observed in infostealers 2 IoCs
  • UPX dump on OEP (original entry point) 6 IoCs
  • Event Triggered Execution: AppInit DLLs 1 TTPs

    Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by AppInit DLLs loaded into processes.

  • ACProtect 1.3x - 1.4x DLL software 1 IoCs

    Detects file using ACProtect software.

  • Loads dropped DLL 1 IoCs
  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates connected drives 3 TTPs 1 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Installs/modifies Browser Helper Object 2 TTPs 8 IoCs

    BHOs are DLL modules which act as plugins for Internet Explorer.

  • UPX packed file 6 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Drops file in Program Files directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs

    The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Checks processor information in registry 2 TTPs 21 IoCs

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

  • Modifies Internet Explorer settings 1 TTPs 22 IoCs
  • Modifies registry class 16 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 7 IoCs
  • Suspicious use of FindShellTrayWindow 7 IoCs
  • Suspicious use of SendNotifyMessage 1 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of WriteProcessMemory 42 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:\Users\Admin\AppData\Local\Temp\2026-09-29_1fed36f96155c8280c3f6dfcf2ef6f6a_darkgate_elex_floxif_glassworm_remcos_stealc_stop.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-09-29_1fed36f96155c8280c3f6dfcf2ef6f6a_darkgate_elex_floxif_glassworm_remcos_stealc_stop.exe"
    1⤵
    • Loads dropped DLL
    • Adds Run key to start application
    • Enumerates connected drives
    • Installs/modifies Browser Helper Object
    • Drops file in Program Files directory
    • Reads the TCP/IP host and domain name from the registry
    • System Location Discovery: System Language Discovery
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:6068
    • C:\Windows\system32\regsvr32.exe
      C:\Windows\Sysnative\regsvr32.exe /s "C:\Users\Admin\AppData\Local\Temp\IDMShellExt64.dll"
      2⤵
        PID:4232
      • C:\Program Files\Mozilla Firefox\firefox.exe
        "C:\Program Files\Mozilla Firefox\firefox.exe" https://www.internetdownloadmanager.com/support/installffextfrommozillasite.html
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1820
        • C:\Program Files\Mozilla Firefox\firefox.exe
          "C:\Program Files\Mozilla Firefox\firefox.exe" https://www.internetdownloadmanager.com/support/installffextfrommozillasite.html
          3⤵
          • Checks processor information in registry
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:5992
          • C:\Program Files\Mozilla Firefox\firefox.exe
            "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -parentBuildID 20250130195129 -prefsHandle 1928 -prefsLen 27097 -prefMapHandle 1932 -prefMapSize 270279 -ipcHandle 1992 -initialChannelId {039b7aed-88b4-4e39-9b6f-0c760e18d32a} -parentPid 5992 -crashReporter "\\.\pipe\gecko-crash-server-pipe.5992" -appDir "C:\Program Files\Mozilla Firefox\browser" - 1 gpu
            4⤵
              PID:3704
            • C:\Program Files\Mozilla Firefox\firefox.exe
              "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -parentBuildID 20250130195129 -prefsHandle 2388 -prefsLen 27133 -prefMapHandle 2392 -prefMapSize 270279 -ipcHandle 2408 -initialChannelId {7805145c-2bb4-4219-892b-d55ca2d52089} -parentPid 5992 -crashReporter "\\.\pipe\gecko-crash-server-pipe.5992" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 2 socket
              4⤵
                PID:236
              • C:\Program Files\Mozilla Firefox\firefox.exe
                "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 3820 -prefsLen 25164 -prefMapHandle 3824 -prefMapSize 270279 -jsInitHandle 3828 -jsInitLen 253512 -parentBuildID 20250130195129 -ipcHandle 3836 -initialChannelId {30d0e477-52db-4948-afb3-2cda766a2d76} -parentPid 5992 -crashReporter "\\.\pipe\gecko-crash-server-pipe.5992" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 3 tab
                4⤵
                • Checks processor information in registry
                PID:5380
              • C:\Program Files\Mozilla Firefox\firefox.exe
                "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -parentBuildID 20250130195129 -prefsHandle 4000 -prefsLen 27274 -prefMapHandle 4004 -prefMapSize 270279 -ipcHandle 4072 -initialChannelId {aca03dbd-76cd-4029-aca7-7b76756b7109} -parentPid 5992 -crashReporter "\\.\pipe\gecko-crash-server-pipe.5992" -appDir "C:\Program Files\Mozilla Firefox\browser" - 4 rdd
                4⤵
                  PID:4784
                • C:\Program Files\Mozilla Firefox\firefox.exe
                  "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 2700 -prefsLen 34773 -prefMapHandle 2892 -prefMapSize 270279 -jsInitHandle 2952 -jsInitLen 253512 -parentBuildID 20250130195129 -ipcHandle 3084 -initialChannelId {c37a7534-93b9-4c31-8814-57682d9c0c0a} -parentPid 5992 -crashReporter "\\.\pipe\gecko-crash-server-pipe.5992" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 5 tab
                  4⤵
                  • Checks processor information in registry
                  PID:4376
                • C:\Program Files\Mozilla Firefox\firefox.exe
                  "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -parentBuildID 20250130195129 -sandboxingKind 0 -prefsHandle 4844 -prefsLen 35010 -prefMapHandle 5036 -prefMapSize 270279 -ipcHandle 5044 -initialChannelId {8a65ed53-ab4f-4401-8510-2775e466f186} -parentPid 5992 -crashReporter "\\.\pipe\gecko-crash-server-pipe.5992" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 6 utility
                  4⤵
                  • Checks processor information in registry
                  PID:5340
                • C:\Program Files\Mozilla Firefox\firefox.exe
                  "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 5448 -prefsLen 35062 -prefMapHandle 5452 -prefMapSize 270279 -jsInitHandle 5456 -jsInitLen 253512 -parentBuildID 20250130195129 -ipcHandle 4892 -initialChannelId {aaba8bd4-409f-45fd-be40-52d02f6a0609} -parentPid 5992 -crashReporter "\\.\pipe\gecko-crash-server-pipe.5992" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 7 tab
                  4⤵
                  • Checks processor information in registry
                  PID:5072
                • C:\Program Files\Mozilla Firefox\firefox.exe
                  "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 5560 -prefsLen 32952 -prefMapHandle 5768 -prefMapSize 270279 -jsInitHandle 5772 -jsInitLen 253512 -parentBuildID 20250130195129 -ipcHandle 5780 -initialChannelId {701989b8-692d-405b-bac4-567038c01381} -parentPid 5992 -crashReporter "\\.\pipe\gecko-crash-server-pipe.5992" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 8 tab
                  4⤵
                  • Checks processor information in registry
                  PID:3384
                • C:\Program Files\Mozilla Firefox\firefox.exe
                  "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 5760 -prefsLen 32952 -prefMapHandle 5680 -prefMapSize 270279 -jsInitHandle 5688 -jsInitLen 253512 -parentBuildID 20250130195129 -ipcHandle 5792 -initialChannelId {c85ceb56-e1c9-412e-94fa-fa664cc85da9} -parentPid 5992 -crashReporter "\\.\pipe\gecko-crash-server-pipe.5992" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 9 tab
                  4⤵
                  • Checks processor information in registry
                  PID:1848
                • C:\Program Files\Mozilla Firefox\firefox.exe
                  "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 6076 -prefsLen 32952 -prefMapHandle 6080 -prefMapSize 270279 -jsInitHandle 6084 -jsInitLen 253512 -parentBuildID 20250130195129 -ipcHandle 6092 -initialChannelId {c7b980f7-7f03-4f41-8775-6b779174dbd9} -parentPid 5992 -crashReporter "\\.\pipe\gecko-crash-server-pipe.5992" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 10 tab
                  4⤵
                  • Checks processor information in registry
                  PID:4568

          Network

                MITRE ATT&CK Enterprise v16

                Replay Monitor

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                Downloads

                symsrv.dll

                • Path C:\Program Files\Common Files\System\symsrv.dll
                • Size 67KB
                • SHA256 de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085
                • MD5 SHA1 SHA512 SSDEEP TLSH

                symsrv.dll.000

                • Path C:\Program Files\Common Files\System\symsrv.dll.000
                • Size 114B
                • SHA256 aefc503b1ed462d7b6280228a7b5b710792273b78934426f88325341ac5b5a92
                • MD5 SHA1 SHA512 TLSH

                AABAB860D2646FDCEACF8AAC0CD412654CE5E4C0

                • Path C:\Users\Admin\AppData\Local\Mozilla\Firefox\Profiles\ej9v93ms.default-release\cache2\entries\AABAB860D2646FDCEACF8AAC0CD412654CE5E4C0
                • Size 16KB
                • SHA256 7b552dc7ddc8f331103d41e6d7912e5498d64ee0d6e9d00ec0db84795c507cff
                • MD5 SHA1 SHA512 SSDEEP TLSH

                webext.sc.lz4

                • Path C:\Users\Admin\AppData\Local\Mozilla\Firefox\Profiles\ej9v93ms.default-release\startupCache\webext.sc.lz4
                • Size 104KB
                • SHA256 120ea68e6119b25aa468336584ec0fb59f7536e64783cc1940d13b2515f265cb
                • 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\ej9v93ms.default-release\datareporting\glean\db\data.safe.tmp
                • Size 28KB
                • SHA256 710424b11377a4ce9a481642e8d9fefd14695e228a9dbccaf586597cc360e4fd
                • MD5 SHA1 SHA512 SSDEEP TLSH

                data.safe.tmp

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\ej9v93ms.default-release\datareporting\glean\db\data.safe.tmp
                • Size 29KB
                • SHA256 962bcc3812c8a7f15a4f4447be57f57263ef0a721bfdb579d779db37fcb4429a
                • MD5 SHA1 SHA512 SSDEEP TLSH

                events

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\ej9v93ms.default-release\datareporting\glean\events\events
                • Size 1KB
                • SHA256 db6a715fc0042891b4b31d0ba165e1b72b87a7910ebb889d93230fedcc24a710
                • MD5 SHA1 SHA512 TLSH

                39ddc802-d298-44f7-b1b8-748b3ffd06d7

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\ej9v93ms.default-release\datareporting\glean\pending_pings\39ddc802-d298-44f7-b1b8-748b3ffd06d7
                • Size 2KB
                • SHA256 db58d6404b7d32f74ade079da4bfe68ca1d9c7f99a16fa4664435c817631c92d
                • MD5 SHA1 SHA512 TLSH

                58f78ccd-1c0c-433f-b62b-48c2a7245a11

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\ej9v93ms.default-release\datareporting\glean\pending_pings\58f78ccd-1c0c-433f-b62b-48c2a7245a11
                • Size 871B
                • SHA256 d183951514f1868ac0aad6745c7def624281c7e09950bf14f20728299a166c02
                • MD5 SHA1 SHA512 TLSH

                7d8af9d9-2431-4559-8d1d-492e1d09347f

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\ej9v93ms.default-release\datareporting\glean\pending_pings\7d8af9d9-2431-4559-8d1d-492e1d09347f
                • Size 235B
                • SHA256 e4edc8b6524e527f4adbfefc13e63845add8046d08ca377baba764b2a6e3ad32
                • MD5 SHA1 SHA512 TLSH

                a1451d5c-d822-44df-8168-66550e2b24ac

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\ej9v93ms.default-release\datareporting\glean\pending_pings\a1451d5c-d822-44df-8168-66550e2b24ac
                • Size 886B
                • SHA256 2fc8c217830132a809c2120ec79a8dd53ff6ed7d27dc6414677e381d2468d9a8
                • MD5 SHA1 SHA512 TLSH

                fb3f43ae-d7e2-4c5d-b247-a37543eb7dbf

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\ej9v93ms.default-release\datareporting\glean\pending_pings\fb3f43ae-d7e2-4c5d-b247-a37543eb7dbf
                • Size 235B
                • SHA256 6bba57ce319b6ac2e78ead0b2b5675b0bf7073d87714168e718804fcd4dc7ed6
                • MD5 SHA1 SHA512 TLSH

                extensions.json

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\ej9v93ms.default-release\extensions.json
                • Size 16KB
                • SHA256 220cb5ed879fffa2e202e1c8754b693902170664156d567b9feb6ecd9717b3d9
                • MD5 SHA1 SHA512 SSDEEP TLSH

                gmpopenh264.dll

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\ej9v93ms.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\ej9v93ms.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\ej9v93ms.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\ej9v93ms.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\ej9v93ms.default-release\prefs-1.js
                • Size 8KB
                • SHA256 4726725604433502bb5948dd8e795674ca8e3b250044016a6cee938aa6c30a63
                • MD5 SHA1 SHA512 SSDEEP TLSH

                prefs.js

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\ej9v93ms.default-release\prefs.js
                • Size 6KB
                • SHA256 4d9997a42d0d561583fa189dc9b53e381fb5279e5533bacc94b5a5459bef1592
                • MD5 SHA1 SHA512 SSDEEP TLSH

                prefs.js

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\ej9v93ms.default-release\prefs.js
                • Size 7KB
                • SHA256 a840e1f6fb20ed4afe249dd3e47d0ce9248870ae50207671b7cb0bb93099e9a2
                • MD5 SHA1 SHA512 SSDEEP TLSH

                prefs.js

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\ej9v93ms.default-release\prefs.js
                • Size 6KB
                • SHA256 a86f5e3d823c57ff87d583c24d844f0a0018f42b803212bd7c9116aa3059a01c
                • MD5 SHA1 SHA512 SSDEEP TLSH

                recovery.baklz4

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\ej9v93ms.default-release\sessionstore-backups\recovery.baklz4
                • Size 4KB
                • SHA256 43a002c06d81a44c0786ff119f8bad8b287d337dc1fbb935f78f8f29c85d4948
                • MD5 SHA1 SHA512 SSDEEP TLSH

                memory/6068-405-0x00000000003E0000-0x00000000009D3000-memory.dmp

                memory/6068-406-0x0000000010000000-0x0000000010030000-memory.dmp

                memory/6068-380-0x0000000010000000-0x0000000010030000-memory.dmp

                memory/6068-20-0x00000000003E0000-0x00000000009D3000-memory.dmp

                memory/6068-21-0x0000000010000000-0x0000000010030000-memory.dmp

                memory/6068-14-0x0000000010000000-0x0000000010030000-memory.dmp

                memory/6068-9-0x00000000003E1000-0x00000000003E2000-memory.dmp

                memory/6068-3-0x0000000010000000-0x0000000010030000-memory.dmp