Analysis

  • max time kernel
    149s
  • max time network
    154s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260130-en
  • resource tags

    arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    17/04/2026, 15:03

General

  • Target
    2026-04-17_db7ada8413ddc45ca2da9c3655b0511e_darkgate_elex_floxif_glassworm_remcos_stop.exe
  • Size 5.8MB
  • Sample260417-sfclpsc151
  • SHA256 87ded20b2da7f4b97b26a55f8b29d6dbc9e6c1757d622de38f50b79d45602d81
  • 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
  • Custom signature
    Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers 3 IoCs
  • Custom signature
    Detects executables containing SQL queries to confidential data stores. Observed in infostealers 3 IoCs
  • Custom signature
    UPX dump on OEP (original entry point) 7 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.

  • A potential corporate email address has been identified in the URL: [email protected]
  • 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 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).

  • 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 20 IoCs

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

  • Modifies Internet Explorer settings 1 TTPs 22 IoCs
  • Modifies registry class 15 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\2026-04-17_db7ada8413ddc45ca2da9c3655b0511e_darkgate_elex_floxif_glassworm_remcos_stop.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-04-17_db7ada8413ddc45ca2da9c3655b0511e_darkgate_elex_floxif_glassworm_remcos_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
    • 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:3440
    • C:\Windows\system32\regsvr32.exe
      C:\Windows\Sysnative\regsvr32.exe /s "C:\Users\Admin\AppData\Local\Temp\IDMShellExt64.dll"
      2⤵
        PID:3352
      • 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:4896
        • 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:5108
          • C:\Program Files\Mozilla Firefox\firefox.exe
            "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -parentBuildID 20250130195129 -prefsHandle 1980 -prefsLen 27097 -prefMapHandle 1984 -prefMapSize 270279 -ipcHandle 2060 -initialChannelId {b0c5b9c7-efc1-45ba-afeb-448b87e42b66} -parentPid 5108 -crashReporter "\\.\pipe\gecko-crash-server-pipe.5108" -appDir "C:\Program Files\Mozilla Firefox\browser" - 1 gpu
            4⤵
              PID:564
            • C:\Program Files\Mozilla Firefox\firefox.exe
              "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -parentBuildID 20250130195129 -prefsHandle 2440 -prefsLen 27133 -prefMapHandle 2444 -prefMapSize 270279 -ipcHandle 2456 -initialChannelId {0c6d6a06-3a97-48f0-8a9a-e0c6db191284} -parentPid 5108 -crashReporter "\\.\pipe\gecko-crash-server-pipe.5108" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 2 socket
              4⤵
                PID:608
              • C:\Program Files\Mozilla Firefox\firefox.exe
                "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 3816 -prefsLen 25213 -prefMapHandle 3820 -prefMapSize 270279 -jsInitHandle 3824 -jsInitLen 253512 -parentBuildID 20250130195129 -ipcHandle 3832 -initialChannelId {b4f88bf4-ebc0-492f-b31f-cca955327677} -parentPid 5108 -crashReporter "\\.\pipe\gecko-crash-server-pipe.5108" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 3 tab
                4⤵
                • Checks processor information in registry
                PID:5472
              • C:\Program Files\Mozilla Firefox\firefox.exe
                "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -parentBuildID 20250130195129 -prefsHandle 4020 -prefsLen 27323 -prefMapHandle 4024 -prefMapSize 270279 -ipcHandle 4088 -initialChannelId {292c3f50-238c-45e9-a31d-0ff658bf0cd2} -parentPid 5108 -crashReporter "\\.\pipe\gecko-crash-server-pipe.5108" -appDir "C:\Program Files\Mozilla Firefox\browser" - 4 rdd
                4⤵
                  PID:4288
                • C:\Program Files\Mozilla Firefox\firefox.exe
                  "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 2764 -prefsLen 34822 -prefMapHandle 2732 -prefMapSize 270279 -jsInitHandle 2768 -jsInitLen 253512 -parentBuildID 20250130195129 -ipcHandle 2628 -initialChannelId {514a6aa7-632f-4ece-ae82-9f340df43adf} -parentPid 5108 -crashReporter "\\.\pipe\gecko-crash-server-pipe.5108" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 5 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 -sandboxingKind 0 -prefsHandle 5064 -prefsLen 35010 -prefMapHandle 5068 -prefMapSize 270279 -ipcHandle 5024 -initialChannelId {31b3b330-8e63-45bb-a7aa-d03f9f8fde8a} -parentPid 5108 -crashReporter "\\.\pipe\gecko-crash-server-pipe.5108" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 6 utility
                  4⤵
                  • Checks processor information in registry
                  PID:1480
                • C:\Program Files\Mozilla Firefox\firefox.exe
                  "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 5344 -prefsLen 35062 -prefMapHandle 5348 -prefMapSize 270279 -jsInitHandle 5352 -jsInitLen 253512 -parentBuildID 20250130195129 -ipcHandle 5360 -initialChannelId {49ebb3b4-7265-44d0-91c3-52b5dc161433} -parentPid 5108 -crashReporter "\\.\pipe\gecko-crash-server-pipe.5108" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 7 tab
                  4⤵
                  • Checks processor information in registry
                  PID:1424
                • C:\Program Files\Mozilla Firefox\firefox.exe
                  "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 5496 -prefsLen 32952 -prefMapHandle 5484 -prefMapSize 270279 -jsInitHandle 5480 -jsInitLen 253512 -parentBuildID 20250130195129 -ipcHandle 5540 -initialChannelId {23339112-73f5-4b78-864a-698472856a87} -parentPid 5108 -crashReporter "\\.\pipe\gecko-crash-server-pipe.5108" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 8 tab
                  4⤵
                  • Checks processor information in registry
                  PID:5936
                • C:\Program Files\Mozilla Firefox\firefox.exe
                  "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 5704 -prefsLen 32952 -prefMapHandle 5708 -prefMapSize 270279 -jsInitHandle 5712 -jsInitLen 253512 -parentBuildID 20250130195129 -ipcHandle 5716 -initialChannelId {125d3655-17c5-4e48-8adf-8719f0136e60} -parentPid 5108 -crashReporter "\\.\pipe\gecko-crash-server-pipe.5108" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 9 tab
                  4⤵
                  • Checks processor information in registry
                  PID:2556
                • C:\Program Files\Mozilla Firefox\firefox.exe
                  "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 5352 -prefsLen 32952 -prefMapHandle 5544 -prefMapSize 270279 -jsInitHandle 5900 -jsInitLen 253512 -parentBuildID 20250130195129 -ipcHandle 5908 -initialChannelId {eb70df1a-c3cd-4a94-a55e-0820af08bbb6} -parentPid 5108 -crashReporter "\\.\pipe\gecko-crash-server-pipe.5108" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 10 tab
                  4⤵
                  • Checks processor information in registry
                  PID:4860

          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

                CD1C116DEEE8F4F97C1806976E10E7E2B349E486

                • Path C:\Users\Admin\AppData\Local\Mozilla\Firefox\Profiles\ljuooy03.default-release\cache2\entries\CD1C116DEEE8F4F97C1806976E10E7E2B349E486
                • Size 13KB
                • SHA256 b21bf1620998f0503ca1e4756a70844fa46ee4158f914cf499ae034e7aca6b20
                • 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\ljuooy03.default-release\datareporting\glean\db\data.safe.tmp
                • Size 30KB
                • SHA256 b53926ae4f0be489d5f9aae4d4ac3134b83892541e0ffcc118baa599deeda445
                • MD5 SHA1 SHA512 SSDEEP TLSH

                data.safe.tmp

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\ljuooy03.default-release\datareporting\glean\db\data.safe.tmp
                • Size 7KB
                • SHA256 037d6fbc79c178a8c5a38b38d34989433f06f123d6143d830883927c17ab7e48
                • MD5 SHA1 SHA512 SSDEEP TLSH

                data.safe.tmp

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\ljuooy03.default-release\datareporting\glean\db\data.safe.tmp
                • Size 5KB
                • SHA256 120e9c9386181a1098d594f2a1ea0095e2231e8ef8d57ab5d11e130d9624c7c4
                • MD5 SHA1 SHA512 SSDEEP TLSH

                data.safe.tmp

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\ljuooy03.default-release\datareporting\glean\db\data.safe.tmp
                • Size 7KB
                • SHA256 6001cdce2d387998ef685dad15096da77407ece4a005d70686ee41e08f00377c
                • MD5 SHA1 SHA512 SSDEEP TLSH

                events

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\ljuooy03.default-release\datareporting\glean\events\events
                • Size 1KB
                • SHA256 8f934c8366511dde76193411485b5278355b8a1b9e396d0e4cd7e27335b81ab1
                • MD5 SHA1 SHA512 TLSH

                events

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\ljuooy03.default-release\datareporting\glean\events\events
                • Size 4KB
                • SHA256 3ccbd680e3e825c32468e0c8cecdfce45fe9d549bbc60e3523186bb5085cc2d5
                • MD5 SHA1 SHA512 SSDEEP TLSH

                1b77ff30-afcb-416e-8478-d4aa54ec83e1

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\ljuooy03.default-release\datareporting\glean\pending_pings\1b77ff30-afcb-416e-8478-d4aa54ec83e1
                • Size 2KB
                • SHA256 a27b317a53aa7d013ab87d5c9719896b4aeb9e5398370f25c5fdcf81fabebd98
                • MD5 SHA1 SHA512 TLSH

                6d5ceb49-4ab6-450c-a653-fdc5e6d3a307

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\ljuooy03.default-release\datareporting\glean\pending_pings\6d5ceb49-4ab6-450c-a653-fdc5e6d3a307
                • Size 883B
                • SHA256 cd6c00f23c98566aca8c4bb4d04c02c13a407fa87eb53505fef60a463710f29e
                • MD5 SHA1 SHA512 TLSH

                7159b34e-7b63-4d17-95f3-6e9634945fbb

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\ljuooy03.default-release\datareporting\glean\pending_pings\7159b34e-7b63-4d17-95f3-6e9634945fbb
                • Size 235B
                • SHA256 790766358b16b5d7dc5ffd6b360a3efe59944cc9fdd85a4db0eb8421e290c80f
                • MD5 SHA1 SHA512 TLSH

                829a785d-61cd-4203-9aa9-f9a2b2c7ce0d

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\ljuooy03.default-release\datareporting\glean\pending_pings\829a785d-61cd-4203-9aa9-f9a2b2c7ce0d
                • Size 235B
                • SHA256 ca763ae8bd77a58b058f437c6e7c6475feebfc038cb11462b50b87e4129b02b7
                • MD5 SHA1 SHA512 TLSH

                bf9aa45e-4820-45f7-b287-dee64052898f

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\ljuooy03.default-release\datareporting\glean\pending_pings\bf9aa45e-4820-45f7-b287-dee64052898f
                • Size 16KB
                • SHA256 088954294f240f907eb49606a2493e2da15820702c80248ca3396e143b3ba304
                • MD5 SHA1 SHA512 SSDEEP TLSH

                d4090a7a-d269-4d2b-8d4f-b0a135225b6c

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\ljuooy03.default-release\datareporting\glean\pending_pings\d4090a7a-d269-4d2b-8d4f-b0a135225b6c
                • Size 886B
                • SHA256 f8c8b81e0a4074cea0d9ff9752bd07a71bbbef1b2b7a3e7387bd53d9a744b542
                • MD5 SHA1 SHA512 TLSH

                extensions.json

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\ljuooy03.default-release\extensions.json
                • Size 16KB
                • SHA256 0880f650e444d6b7b3833c579b3ce5f590011c108e6b719d17d29e6fa289c190
                • MD5 SHA1 SHA512 SSDEEP TLSH

                gmpopenh264.dll

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\ljuooy03.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\ljuooy03.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\ljuooy03.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\ljuooy03.default-release\gmp-widevinecdm\4.10.2934.0\widevinecdm.dll
                • Size 18.9MB
                • SHA256 875a76af5b19622842c9b37fe77dce10ee83f27adbdcfcde9c814d4e1226d023
                • MD5 SHA1 SHA512 SSDEEP TLSH

                prefs.js

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\ljuooy03.default-release\prefs.js
                • Size 6KB
                • SHA256 f4e8ad5626d2ccaeea6e2682d93d68def580c6f503eb3d2faedb222b7184d78f
                • MD5 SHA1 SHA512 SSDEEP TLSH

                prefs.js

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\ljuooy03.default-release\prefs.js
                • Size 6KB
                • SHA256 bce95a16a8c45014833b85888cfc5d71b80c8b44826a02667553d3d9c11130d8
                • MD5 SHA1 SHA512 SSDEEP TLSH

                prefs.js

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\ljuooy03.default-release\prefs.js
                • Size 7KB
                • SHA256 0393e7d38a9a6fe01275adf8d0fc4ab725867c1a4eb4b5f980a5489f149d22de
                • MD5 SHA1 SHA512 SSDEEP TLSH

                prefs.js

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\ljuooy03.default-release\prefs.js
                • Size 8KB
                • SHA256 9957420dd34a913e1673ca4e18ed5b6b798fe8c856f15a8c4b604f0745614d7c
                • MD5 SHA1 SHA512 SSDEEP TLSH

                recovery.baklz4

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\ljuooy03.default-release\sessionstore-backups\recovery.baklz4
                • Size 4KB
                • SHA256 616278b7efea25c3ac6655047164d1603a5955edc1a8e647d0c24818b1d66ae7
                • MD5 SHA1 SHA512 SSDEEP TLSH

                3870112724rsegmnoittet-es.sqlite

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\ljuooy03.default-release\storage\permanent\chrome\idb\3870112724rsegmnoittet-es.sqlite
                • Size 3.2MB
                • SHA256 52bc4f7f0ca621e9235bfde8199be5c80be0fc11a5bc439cb9f75c9c4f64669c
                • MD5 SHA1 SHA512 SSDEEP TLSH

                memory/3440-5-0x0000000000F11000-0x0000000000F12000-memory.dmp

                memory/3440-12-0x0000000010000000-0x0000000010030000-memory.dmp

                memory/3440-3-0x0000000010000000-0x0000000010030000-memory.dmp

                memory/3440-413-0x0000000000F10000-0x00000000014E1000-memory.dmp

                memory/3440-399-0x0000000000F10000-0x00000000014E1000-memory.dmp

                memory/3440-400-0x0000000010000000-0x0000000010030000-memory.dmp

                memory/3440-401-0x0000000003690000-0x00000000036F4000-memory.dmp

                memory/3440-14-0x0000000000F10000-0x00000000014E1000-memory.dmp

                memory/3440-16-0x0000000003690000-0x00000000036F4000-memory.dmp

                memory/3440-15-0x0000000010000000-0x0000000010030000-memory.dmp

                memory/3440-20-0x0000000010000000-0x0000000010030000-memory.dmp

                memory/3440-760-0x0000000010000000-0x0000000010030000-memory.dmp