Analysis

  • max time kernel
    148s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260911-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    28/09/2026, 01:59

General

  • Target
    2026-09-27_a3f2a16654c8c473af3c1da3b24374d9_darkgate_elex_floxif_glassworm_remcos_stealc_stop.exe
  • Size 6.0MB
  • Sample260928-cedvda115m
  • SHA256 fa0af2b1ccf80c29b353b80c046eea75567b0c6f810c4bf7d91845fa3240d2c0
  • 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 4 IoCs
  • Detects executables containing SQL queries to confidential data stores. Observed in infostealers 4 IoCs
  • UPX dump on OEP (original entry point) 7 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 7 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 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 17 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 10 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\2026-09-27_a3f2a16654c8c473af3c1da3b24374d9_darkgate_elex_floxif_glassworm_remcos_stealc_stop.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-09-27_a3f2a16654c8c473af3c1da3b24374d9_darkgate_elex_floxif_glassworm_remcos_stealc_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
    • 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:2724
    • C:\Windows\SysWOW64\regsvr32.exe
      regsvr32.exe /s "C:\Users\Admin\AppData\Local\Temp\IDMShellExt64.dll"
      2⤵
      • System Location Discovery: System Language Discovery
      PID:3756
    • 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:2504
      • 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:3848
        • C:\Program Files\Mozilla Firefox\firefox.exe
          "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -parentBuildID 20250130195129 -prefsHandle 2028 -prefsLen 27099 -prefMapHandle 2032 -prefMapSize 270279 -ipcHandle 2100 -initialChannelId {8d6e37ed-0e3a-474a-bb70-6e322bb1c663} -parentPid 3848 -crashReporter "\\.\pipe\gecko-crash-server-pipe.3848" -appDir "C:\Program Files\Mozilla Firefox\browser" - 1 gpu
          4⤵
            PID:880
          • 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 {38bf38cd-3274-480f-9111-fd68a207d701} -parentPid 3848 -crashReporter "\\.\pipe\gecko-crash-server-pipe.3848" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 2 socket
            4⤵
              PID:4600
            • C:\Program Files\Mozilla Firefox\firefox.exe
              "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 3880 -prefsLen 25164 -prefMapHandle 3884 -prefMapSize 270279 -jsInitHandle 3888 -jsInitLen 253512 -parentBuildID 20250130195129 -ipcHandle 3896 -initialChannelId {fc77325a-d7ed-4820-89a9-c1eff44a806d} -parentPid 3848 -crashReporter "\\.\pipe\gecko-crash-server-pipe.3848" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 3 tab
              4⤵
              • Checks processor information in registry
              PID:3884
            • C:\Program Files\Mozilla Firefox\firefox.exe
              "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -parentBuildID 20250130195129 -prefsHandle 4072 -prefsLen 27276 -prefMapHandle 4076 -prefMapSize 270279 -ipcHandle 4144 -initialChannelId {971557e1-d86b-418d-8766-6d7e5fa5dada} -parentPid 3848 -crashReporter "\\.\pipe\gecko-crash-server-pipe.3848" -appDir "C:\Program Files\Mozilla Firefox\browser" - 4 rdd
              4⤵
                PID:3192
              • C:\Program Files\Mozilla Firefox\firefox.exe
                "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 3352 -prefsLen 34775 -prefMapHandle 2948 -prefMapSize 270279 -jsInitHandle 3008 -jsInitLen 253512 -parentBuildID 20250130195129 -ipcHandle 3084 -initialChannelId {efc50f4f-747e-4550-8d38-bdcec3039efb} -parentPid 3848 -crashReporter "\\.\pipe\gecko-crash-server-pipe.3848" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 5 tab
                4⤵
                • Checks processor information in registry
                PID:2312
              • C:\Program Files\Mozilla Firefox\firefox.exe
                "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -parentBuildID 20250130195129 -sandboxingKind 0 -prefsHandle 3300 -prefsLen 35012 -prefMapHandle 3400 -prefMapSize 270279 -ipcHandle 4944 -initialChannelId {f28a9360-a652-441a-a655-f6c0fb55f71c} -parentPid 3848 -crashReporter "\\.\pipe\gecko-crash-server-pipe.3848" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 6 utility
                4⤵
                • Checks processor information in registry
                PID:5884
              • C:\Program Files\Mozilla Firefox\firefox.exe
                "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 5164 -prefsLen 32952 -prefMapHandle 5168 -prefMapSize 270279 -jsInitHandle 5172 -jsInitLen 253512 -parentBuildID 20250130195129 -ipcHandle 5180 -initialChannelId {2a9a609c-6c5a-49ec-b5ca-922d67d8e4fd} -parentPid 3848 -crashReporter "\\.\pipe\gecko-crash-server-pipe.3848" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 7 tab
                4⤵
                • Checks processor information in registry
                PID:5896
              • C:\Program Files\Mozilla Firefox\firefox.exe
                "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 5400 -prefsLen 32952 -prefMapHandle 5404 -prefMapSize 270279 -jsInitHandle 5408 -jsInitLen 253512 -parentBuildID 20250130195129 -ipcHandle 5412 -initialChannelId {1d9b244e-3890-4980-a194-9448f66cc1ce} -parentPid 3848 -crashReporter "\\.\pipe\gecko-crash-server-pipe.3848" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 8 tab
                4⤵
                • Checks processor information in registry
                PID:5924
              • C:\Program Files\Mozilla Firefox\firefox.exe
                "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 5600 -prefsLen 32952 -prefMapHandle 5604 -prefMapSize 270279 -jsInitHandle 5608 -jsInitLen 253512 -parentBuildID 20250130195129 -ipcHandle 5616 -initialChannelId {1183cfac-2ba0-4756-a3da-1e80fe9a8c23} -parentPid 3848 -crashReporter "\\.\pipe\gecko-crash-server-pipe.3848" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 9 tab
                4⤵
                • Checks processor information in registry
                PID:5944
              • C:\Program Files\Mozilla Firefox\firefox.exe
                "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 3988 -prefsLen 32952 -prefMapHandle 3972 -prefMapSize 270279 -jsInitHandle 3976 -jsInitLen 253512 -parentBuildID 20250130195129 -ipcHandle 4276 -initialChannelId {4cae1f06-9f44-447f-876d-336f8932d517} -parentPid 3848 -crashReporter "\\.\pipe\gecko-crash-server-pipe.3848" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 10 tab
                4⤵
                • Checks processor information in registry
                PID:3428
          • 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:4228
          • 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:3368
          • 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:4612
          • 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:2700

        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\r7rqhbuk.default-release\cache2\entries\AABAB860D2646FDCEACF8AAC0CD412654CE5E4C0
              • Size 16KB
              • SHA256 661642f0fc59346443d75eaa0d6abaf7d18cc2577f35297431c6c25424330463
              • 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\r7rqhbuk.default-release\datareporting\glean\db\data.safe.tmp
              • Size 28KB
              • SHA256 79dbf8fbac8e9f1ce01e964e2f0189ae955561dbe917ac508e7c5a4cfb6bfd1a
              • MD5 SHA1 SHA512 SSDEEP TLSH

              data.safe.tmp

              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\r7rqhbuk.default-release\datareporting\glean\db\data.safe.tmp
              • Size 26KB
              • SHA256 f939fb5f2123a800cbd9d06c34dfe331033147e13ddcf83af78d764a213435d6
              • MD5 SHA1 SHA512 SSDEEP TLSH

              5d415f3e-5ecd-4794-8a1e-aee6bc57beef

              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\r7rqhbuk.default-release\datareporting\glean\pending_pings\5d415f3e-5ecd-4794-8a1e-aee6bc57beef
              • Size 871B
              • SHA256 6420d6afe0668883616d2acc2aff6b7c5a81c89f90b0887e05516b07f57ee49b
              • MD5 SHA1 SHA512 TLSH

              a321fe08-a7ef-4767-93d2-2e8c140f6d32

              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\r7rqhbuk.default-release\datareporting\glean\pending_pings\a321fe08-a7ef-4767-93d2-2e8c140f6d32
              • Size 235B
              • SHA256 8693b15895165af86e55ab1a8169f7a931cf65bccc80b05db30ca2e3cf5d9d29
              • MD5 SHA1 SHA512 TLSH

              a73aaef6-d4f4-49f5-beef-740e788808a2

              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\r7rqhbuk.default-release\datareporting\glean\pending_pings\a73aaef6-d4f4-49f5-beef-740e788808a2
              • Size 2KB
              • SHA256 f02ec2d19f6f0dc1acd0ea8a3c310175a801416edf375affe6b0d0ed2089a1ce
              • MD5 SHA1 SHA512 TLSH

              b7a92b29-76a5-4068-b16c-e065a2c144e5

              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\r7rqhbuk.default-release\datareporting\glean\pending_pings\b7a92b29-76a5-4068-b16c-e065a2c144e5
              • Size 235B
              • SHA256 ed3ba35759c6f918acffe330a97b1bdab350e586823da4caed01b4d634a358a1
              • MD5 SHA1 SHA512 TLSH

              bccdb1d4-5384-4e8e-ae06-976367d0c3c7

              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\r7rqhbuk.default-release\datareporting\glean\pending_pings\bccdb1d4-5384-4e8e-ae06-976367d0c3c7
              • Size 886B
              • SHA256 7e75208351d0052e5ad9b7e84d898f594a073d4ef91a7ffc5d2845b89f9697b5
              • MD5 SHA1 SHA512 TLSH

              extensions.json

              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\r7rqhbuk.default-release\extensions.json
              • Size 16KB
              • SHA256 fedf2edb3e309b268caebdaf16db101827ae321c7b81e73c930ff5ca6439c9b3
              • MD5 SHA1 SHA512 SSDEEP TLSH

              gmpopenh264.dll

              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\r7rqhbuk.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\r7rqhbuk.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\r7rqhbuk.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\r7rqhbuk.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\r7rqhbuk.default-release\prefs-1.js
              • Size 6KB
              • SHA256 fc9b29b677ae7ea42402614f5112ee7d66f2a72d75f5201bfe7477392eea7e01
              • MD5 SHA1 SHA512 SSDEEP TLSH

              prefs.js

              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\r7rqhbuk.default-release\prefs.js
              • Size 8KB
              • SHA256 bccb5f0dacd24eceae3f373e16ec0d061aa21a6424fcd70d93862098e9cb8411
              • MD5 SHA1 SHA512 SSDEEP TLSH

              prefs.js

              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\r7rqhbuk.default-release\prefs.js
              • Size 7KB
              • SHA256 f1e3774a65e0c72e317f077583c231b98f5f7ff7e65fd0066c8973a1687715f8
              • MD5 SHA1 SHA512 SSDEEP TLSH

              prefs.js

              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\r7rqhbuk.default-release\prefs.js
              • Size 6KB
              • SHA256 82e6d8ef94d844964fb893b4e495661c46f2db6a390f79235cf22d41ef2e8d7d
              • MD5 SHA1 SHA512 SSDEEP TLSH

              recovery.baklz4

              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\r7rqhbuk.default-release\sessionstore-backups\recovery.baklz4
              • Size 4KB
              • SHA256 02d71ee501f41ec51d048ab4affae443a64dcb8b4e0e02a746396da956ee3d66
              • MD5 SHA1 SHA512 SSDEEP TLSH

              3870112724rsegmnoittet-es.sqlite

              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\r7rqhbuk.default-release\storage\permanent\chrome\idb\3870112724rsegmnoittet-es.sqlite
              • Size 6.6MB
              • SHA256 21105f17cbc36bd9440f18499fe99a0ce08a4eb9e7fa806f88d5074c30d6cbfa
              • MD5 SHA1 SHA512 SSDEEP TLSH

              memory/2724-25-0x0000000010000000-0x0000000010030000-memory.dmp

              memory/2724-7-0x0000000000541000-0x0000000000542000-memory.dmp

              memory/2724-3-0x0000000010000000-0x0000000010030000-memory.dmp

              memory/2724-17-0x0000000010000000-0x0000000010030000-memory.dmp

              memory/2724-406-0x0000000000540000-0x0000000000B33000-memory.dmp

              memory/2724-387-0x0000000000540000-0x0000000000B33000-memory.dmp

              memory/2724-388-0x0000000010000000-0x0000000010030000-memory.dmp

              memory/2724-368-0x0000000010000000-0x0000000010030000-memory.dmp

              memory/2724-21-0x0000000000540000-0x0000000000B33000-memory.dmp

              memory/2724-706-0x0000000010000000-0x0000000010030000-memory.dmp

              memory/2724-705-0x0000000000540000-0x0000000000B33000-memory.dmp