Analysis

  • max time kernel
    149s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    05/09/2026, 02:55

General

  • Target
    2026-09-04_96258a8456a9c323e0cfe8a7f4fa0def_darkgate_elex_floxif_glassworm_remcos_stop.exe
  • Size 5.8MB
  • Sample260905-des5qsbe79
  • SHA256 fcaab121d8608deb838394475f5e1736e0175016d7e9ade239d57acef8cd0b72
  • 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 5 IoCs
  • Detects executables containing SQL queries to confidential data stores. Observed in infostealers 5 IoCs
  • UPX dump on OEP (original entry point) 8 IoCs
  • ACProtect 1.3x - 1.4x DLL software 1 IoCs

    Detects file using ACProtect software.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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 8 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).

  • System Location Discovery: System Language Discovery 1 TTPs 6 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 20 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 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 7 IoCs
  • Suspicious use of FindShellTrayWindow 8 IoCs
  • Suspicious use of SendNotifyMessage 1 IoCs
  • Suspicious use of SetWindowsHookEx 12 IoCs
  • Suspicious use of WriteProcessMemory 46 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\2026-09-04_96258a8456a9c323e0cfe8a7f4fa0def_darkgate_elex_floxif_glassworm_remcos_stop.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-09-04_96258a8456a9c323e0cfe8a7f4fa0def_darkgate_elex_floxif_glassworm_remcos_stop.exe"
    1⤵
    • Checks computer location settings
    • Loads dropped DLL
    • Adds Run key to start application
    • Enumerates connected drives
    • Installs/modifies Browser Helper Object
    • Drops file in Program Files directory
    • 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:1120
    • C:\Windows\SysWOW64\regsvr32.exe
      regsvr32.exe /s "C:\Users\Admin\AppData\Local\Temp\IDMShellExt64.dll"
      2⤵
      • System Location Discovery: System Language Discovery
      PID:4432
    • 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:64
      • 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
        • Modifies registry class
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:4836
        • C:\Program Files\Mozilla Firefox\firefox.exe
          "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -parentBuildID 20250130195129 -prefsHandle 2020 -prefsLen 27099 -prefMapHandle 2024 -prefMapSize 270279 -ipcHandle 2100 -initialChannelId {70d91fc1-f966-4c07-98e2-2912bcb843cb} -parentPid 4836 -crashReporter "\\.\pipe\gecko-crash-server-pipe.4836" -appDir "C:\Program Files\Mozilla Firefox\browser" - 1 gpu
          4⤵
            PID:4020
          • C:\Program Files\Mozilla Firefox\firefox.exe
            "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -parentBuildID 20250130195129 -prefsHandle 2500 -prefsLen 27135 -prefMapHandle 2504 -prefMapSize 270279 -ipcHandle 2512 -initialChannelId {2cdd83d1-53bc-44f1-80c7-b2ba47ec42c8} -parentPid 4836 -crashReporter "\\.\pipe\gecko-crash-server-pipe.4836" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 2 socket
            4⤵
              PID:1264
            • 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 {a959cae6-f183-4b7a-bfd3-3fa5fc01a4a1} -parentPid 4836 -crashReporter "\\.\pipe\gecko-crash-server-pipe.4836" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 3 tab
              4⤵
              • Checks processor information in registry
              PID:3868
            • C:\Program Files\Mozilla Firefox\firefox.exe
              "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -parentBuildID 20250130195129 -prefsHandle 3948 -prefsLen 27276 -prefMapHandle 3952 -prefMapSize 270279 -ipcHandle 4036 -initialChannelId {fc39ccbf-ae8c-4f71-a3f0-1af1fb53d4cb} -parentPid 4836 -crashReporter "\\.\pipe\gecko-crash-server-pipe.4836" -appDir "C:\Program Files\Mozilla Firefox\browser" - 4 rdd
              4⤵
                PID:1124
              • C:\Program Files\Mozilla Firefox\firefox.exe
                "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 4320 -prefsLen 34775 -prefMapHandle 4324 -prefMapSize 270279 -jsInitHandle 4328 -jsInitLen 253512 -parentBuildID 20250130195129 -ipcHandle 4336 -initialChannelId {3c55f7f1-a819-4e58-ae31-01688c0f3ceb} -parentPid 4836 -crashReporter "\\.\pipe\gecko-crash-server-pipe.4836" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 5 tab
                4⤵
                • Checks processor information in registry
                PID:4500
              • C:\Program Files\Mozilla Firefox\firefox.exe
                "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -parentBuildID 20250130195129 -sandboxingKind 0 -prefsHandle 1520 -prefsLen 35012 -prefMapHandle 3256 -prefMapSize 270279 -ipcHandle 4892 -initialChannelId {5e46d639-4b82-49ef-ae9e-16e9b50a355a} -parentPid 4836 -crashReporter "\\.\pipe\gecko-crash-server-pipe.4836" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 6 utility
                4⤵
                • Checks processor information in registry
                PID:5624
              • C:\Program Files\Mozilla Firefox\firefox.exe
                "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 5032 -prefsLen 32952 -prefMapHandle 5000 -prefMapSize 270279 -jsInitHandle 5012 -jsInitLen 253512 -parentBuildID 20250130195129 -ipcHandle 5044 -initialChannelId {d274d7ff-0385-4f89-9440-6ff147c4f7a7} -parentPid 4836 -crashReporter "\\.\pipe\gecko-crash-server-pipe.4836" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 7 tab
                4⤵
                • Checks processor information in registry
                PID:5752
              • C:\Program Files\Mozilla Firefox\firefox.exe
                "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 5108 -prefsLen 32952 -prefMapHandle 5112 -prefMapSize 270279 -jsInitHandle 5116 -jsInitLen 253512 -parentBuildID 20250130195129 -ipcHandle 5080 -initialChannelId {c944321e-9449-4e5e-9961-ff7b7d46acf1} -parentPid 4836 -crashReporter "\\.\pipe\gecko-crash-server-pipe.4836" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 8 tab
                4⤵
                • Checks processor information in registry
                PID:5760
              • C:\Program Files\Mozilla Firefox\firefox.exe
                "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 5492 -prefsLen 32952 -prefMapHandle 5496 -prefMapSize 270279 -jsInitHandle 5500 -jsInitLen 253512 -parentBuildID 20250130195129 -ipcHandle 5032 -initialChannelId {e55b3d38-f85d-4123-a417-a84427138724} -parentPid 4836 -crashReporter "\\.\pipe\gecko-crash-server-pipe.4836" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 9 tab
                4⤵
                • Checks processor information in registry
                PID:5876
              • C:\Program Files\Mozilla Firefox\firefox.exe
                "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 2980 -prefsLen 32952 -prefMapHandle 3916 -prefMapSize 270279 -jsInitHandle 3900 -jsInitLen 253512 -parentBuildID 20250130195129 -ipcHandle 3888 -initialChannelId {5edc0003-b54d-441d-8887-6b5f759a3f37} -parentPid 4836 -crashReporter "\\.\pipe\gecko-crash-server-pipe.4836" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 10 tab
                4⤵
                • Checks processor information in registry
                PID:5424
          • C:\Windows\SysWOW64\regsvr32.exe
            "C:\Windows\System32\regsvr32.exe" /s "C:\Users\Admin\AppData\Local\Temp\IDMShellExt64.dll"
            2⤵
            • System Location Discovery: System Language Discovery
            PID:3380
          • C:\Windows\SysWOW64\regsvr32.exe
            "C:\Windows\System32\regsvr32.exe" /s "C:\Users\Admin\AppData\Local\Temp\IDMIECC64.dll"
            2⤵
            • System Location Discovery: System Language Discovery
            PID:3728
          • C:\Windows\SysWOW64\regsvr32.exe
            "C:\Windows\System32\regsvr32.exe" /s "C:\Users\Admin\AppData\Local\Temp\IDMGetAll64.dll"
            2⤵
            • System Location Discovery: System Language Discovery
            PID:3608
          • C:\Windows\SysWOW64\regsvr32.exe
            "C:\Windows\System32\regsvr32.exe" /s "C:\Users\Admin\AppData\Local\Temp\downlWithIDM64.dll"
            2⤵
            • System Location Discovery: System Language Discovery
            PID:5136

        Network

              MITRE ATT&CK Enterprise v16

              Replay Monitor

              Loading Replay Monitor...

              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

              5E43012191E7B1F510ACD5BF039D8BF1B9A277B2

              • Path C:\Users\Admin\AppData\Local\Mozilla\Firefox\Profiles\pltyyssw.default-release\cache2\entries\5E43012191E7B1F510ACD5BF039D8BF1B9A277B2
              • Size 16KB
              • SHA256 3afecf13396fdedb99b5e226a89f75cf227aa94361c24d1fa9628a4a3d947daf
              • 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\pltyyssw.default-release\datareporting\glean\db\data.safe.tmp
              • Size 28KB
              • SHA256 a7672addc95642e24e51fcb03060788c412aa8d14d0e52fca7c03a8fed138220
              • MD5 SHA1 SHA512 SSDEEP TLSH

              data.safe.tmp

              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\pltyyssw.default-release\datareporting\glean\db\data.safe.tmp
              • Size 28KB
              • SHA256 b618ea7884b1dc0da84783e7386805f37729ae7b2f4ea0508ad5f0ec624d541a
              • MD5 SHA1 SHA512 SSDEEP TLSH

              events

              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\pltyyssw.default-release\datareporting\glean\events\events
              • Size 1KB
              • SHA256 5c630f02e089bfa7dd824683d3244d05a97402cebf755c2a2b4ab1850d863894
              • MD5 SHA1 SHA512 TLSH

              5176d674-f7e4-4398-9e5b-e7aba220b3c8

              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\pltyyssw.default-release\datareporting\glean\pending_pings\5176d674-f7e4-4398-9e5b-e7aba220b3c8
              • Size 2KB
              • SHA256 541487ae192c3f5a572d77259e82a318b590a23bcabf6b89b8bf494fc6f93513
              • MD5 SHA1 SHA512 TLSH

              5cbcedf2-1d8d-4a84-a1b7-9f452769dffd

              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\pltyyssw.default-release\datareporting\glean\pending_pings\5cbcedf2-1d8d-4a84-a1b7-9f452769dffd
              • Size 871B
              • SHA256 24d673c4233ad3d815580f360b31f0afccf41f99da29d49ee6b9930bdc6ecf95
              • MD5 SHA1 SHA512 TLSH

              7e9ec23e-cdee-480e-b2e9-001d398e4fd3

              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\pltyyssw.default-release\datareporting\glean\pending_pings\7e9ec23e-cdee-480e-b2e9-001d398e4fd3
              • Size 886B
              • SHA256 19be893d04baf9b26ec52f7d5b8fbfe8f38ec5faf8bb924a9997e1380b7a30f3
              • MD5 SHA1 SHA512 TLSH

              82fdcf1f-0630-4971-88bd-823e7b4c4638

              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\pltyyssw.default-release\datareporting\glean\pending_pings\82fdcf1f-0630-4971-88bd-823e7b4c4638
              • Size 235B
              • SHA256 bf5342b45ba3cc7abdecbc0ebd8da95acf7c5b80d365e9facd140a8c8cdbc711
              • MD5 SHA1 SHA512 TLSH

              bb172300-1311-4930-96ad-7797c27c61a6

              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\pltyyssw.default-release\datareporting\glean\pending_pings\bb172300-1311-4930-96ad-7797c27c61a6
              • Size 235B
              • SHA256 dfcd0a24efa6d90501f86a72f388e3b321ccd3cb152955f87cafac85766d5da9
              • MD5 SHA1 SHA512 TLSH

              extensions.json

              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\pltyyssw.default-release\extensions.json
              • Size 16KB
              • SHA256 647c7816e1de5f2e21f0350250d813576f765567705d75754b15cb3481bacdb9
              • MD5 SHA1 SHA512 SSDEEP TLSH

              gmpopenh264.dll

              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\pltyyssw.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\pltyyssw.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\pltyyssw.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\pltyyssw.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\pltyyssw.default-release\prefs-1.js
              • Size 6KB
              • SHA256 20afa3d909edf6ebfb69de20368128a9b80a015cbb147367ab15d9b81a0a18f4
              • MD5 SHA1 SHA512 SSDEEP TLSH

              prefs-1.js

              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\pltyyssw.default-release\prefs-1.js
              • Size 7KB
              • SHA256 ceb5ee3ee3ff63bf0b737fda8acfbfc4fbf63bcef28ce5a7b1d7d89daa7d0979
              • MD5 SHA1 SHA512 SSDEEP TLSH

              prefs.js

              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\pltyyssw.default-release\prefs.js
              • Size 6KB
              • SHA256 a5f00a3ac1ef83c65f6dd07f6679ecd00ff22388adf22f22adb83af362ca5796
              • MD5 SHA1 SHA512 SSDEEP TLSH

              recovery.baklz4

              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\pltyyssw.default-release\sessionstore-backups\recovery.baklz4
              • Size 1KB
              • SHA256 9334d250c4cbd6fe1d2fcf0cfcd59adb6d5c919f82536412d1ca3459f33400f4
              • MD5 SHA1 SHA512 TLSH

              recovery.baklz4

              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\pltyyssw.default-release\sessionstore-backups\recovery.baklz4
              • Size 4KB
              • SHA256 cfb6b294bec8c42ff26b43416e3c0fbfff8af75cfef0164a062c0a66cbf2d882
              • MD5 SHA1 SHA512 SSDEEP TLSH

              3870112724rsegmnoittet-es.sqlite

              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\pltyyssw.default-release\storage\permanent\chrome\idb\3870112724rsegmnoittet-es.sqlite
              • Size 4.1MB
              • SHA256 48de272a9f9736a7e474168e8ef6fa7624d3b6c4194396ece9328a80581f1ac7
              • MD5 SHA1 SHA512 SSDEEP TLSH

              memory/1120-7-0x0000000000E41000-0x0000000000E42000-memory.dmp

              memory/1120-12-0x0000000010000000-0x0000000010030000-memory.dmp

              memory/1120-300-0x0000000010000000-0x0000000010030000-memory.dmp

              memory/1120-10-0x0000000010000000-0x0000000010030000-memory.dmp

              memory/1120-357-0x0000000010000000-0x0000000010030000-memory.dmp

              memory/1120-3-0x0000000010000000-0x0000000010030000-memory.dmp

              memory/1120-332-0x0000000000E40000-0x0000000001411000-memory.dmp

              memory/1120-334-0x0000000010000000-0x0000000010030000-memory.dmp

              memory/1120-549-0x0000000010000000-0x0000000010030000-memory.dmp

              memory/1120-11-0x0000000000E40000-0x0000000001411000-memory.dmp

              memory/1120-356-0x0000000000E40000-0x0000000001411000-memory.dmp

              memory/1120-720-0x0000000000E40000-0x0000000001411000-memory.dmp

              memory/1120-735-0x0000000000E40000-0x0000000001411000-memory.dmp