Analysis

  • max time kernel
    149s
  • max time network
    155s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260513-en
  • resource tags

    arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    01/06/2026, 17:22

General

  • Target
    2026-06-01_a96e2f079ada75f70c5da87bf80d2c66_darkgate_elex_floxif_glassworm_remcos_stop.exe
  • Size 5.9MB
  • Sample260601-vxp98sbt91
  • SHA256 5020ccdc3e59796515f59cdb39d3f38549959b2e0130c3e2cc491dbf6981a12d
  • 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) 8 IoCs
  • 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 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 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 6 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\2026-06-01_a96e2f079ada75f70c5da87bf80d2c66_darkgate_elex_floxif_glassworm_remcos_stop.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-06-01_a96e2f079ada75f70c5da87bf80d2c66_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:4200
    • C:\Windows\system32\regsvr32.exe
      C:\Windows\Sysnative\regsvr32.exe /s "C:\Users\Admin\AppData\Local\Temp\IDMShellExt64.dll"
      2⤵
        PID:3372
      • 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:4388
        • 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:3176
          • C:\Program Files\Mozilla Firefox\firefox.exe
            "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -parentBuildID 20250130195129 -prefsHandle 1964 -prefsLen 27097 -prefMapHandle 1968 -prefMapSize 270279 -ipcHandle 2028 -initialChannelId {b008b3a5-e6fb-4e78-84fd-7e0084469e5c} -parentPid 3176 -crashReporter "\\.\pipe\gecko-crash-server-pipe.3176" -appDir "C:\Program Files\Mozilla Firefox\browser" - 1 gpu
            4⤵
              PID:2128
            • C:\Program Files\Mozilla Firefox\firefox.exe
              "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -parentBuildID 20250130195129 -prefsHandle 2428 -prefsLen 27133 -prefMapHandle 2432 -prefMapSize 270279 -ipcHandle 2440 -initialChannelId {1b3122fb-d71f-4f6e-8b22-b3c6ad0eca43} -parentPid 3176 -crashReporter "\\.\pipe\gecko-crash-server-pipe.3176" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 2 socket
              4⤵
                PID:3408
              • C:\Program Files\Mozilla Firefox\firefox.exe
                "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 3792 -prefsLen 25164 -prefMapHandle 3796 -prefMapSize 270279 -jsInitHandle 3800 -jsInitLen 253512 -parentBuildID 20250130195129 -ipcHandle 3808 -initialChannelId {f0a2c97c-e517-4dc7-aec1-b3e1f281d6ad} -parentPid 3176 -crashReporter "\\.\pipe\gecko-crash-server-pipe.3176" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 3 tab
                4⤵
                • Checks processor information in registry
                PID:4056
              • C:\Program Files\Mozilla Firefox\firefox.exe
                "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -parentBuildID 20250130195129 -prefsHandle 3984 -prefsLen 27274 -prefMapHandle 3988 -prefMapSize 270279 -ipcHandle 4056 -initialChannelId {e719d2ec-d891-476a-9980-9b59691517ad} -parentPid 3176 -crashReporter "\\.\pipe\gecko-crash-server-pipe.3176" -appDir "C:\Program Files\Mozilla Firefox\browser" - 4 rdd
                4⤵
                  PID:5096
                • C:\Program Files\Mozilla Firefox\firefox.exe
                  "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 3136 -prefsLen 34773 -prefMapHandle 2476 -prefMapSize 270279 -jsInitHandle 2732 -jsInitLen 253512 -parentBuildID 20250130195129 -ipcHandle 4424 -initialChannelId {ff54df64-f7f6-421f-94f1-151ed5232a36} -parentPid 3176 -crashReporter "\\.\pipe\gecko-crash-server-pipe.3176" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 5 tab
                  4⤵
                  • Checks processor information in registry
                  PID:2332
                • C:\Program Files\Mozilla Firefox\firefox.exe
                  "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -parentBuildID 20250130195129 -sandboxingKind 0 -prefsHandle 4972 -prefsLen 35010 -prefMapHandle 4976 -prefMapSize 270279 -ipcHandle 4948 -initialChannelId {ef420881-3f21-494a-9bed-6259896974df} -parentPid 3176 -crashReporter "\\.\pipe\gecko-crash-server-pipe.3176" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 6 utility
                  4⤵
                  • Checks processor information in registry
                  PID:5564
                • C:\Program Files\Mozilla Firefox\firefox.exe
                  "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 5360 -prefsLen 35062 -prefMapHandle 5364 -prefMapSize 270279 -jsInitHandle 5368 -jsInitLen 253512 -parentBuildID 20250130195129 -ipcHandle 4900 -initialChannelId {019f5a01-6886-4dd9-83d3-a19e17e4e30c} -parentPid 3176 -crashReporter "\\.\pipe\gecko-crash-server-pipe.3176" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 7 tab
                  4⤵
                  • Checks processor information in registry
                  PID:5856
                • C:\Program Files\Mozilla Firefox\firefox.exe
                  "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 4180 -prefsLen 32952 -prefMapHandle 5528 -prefMapSize 270279 -jsInitHandle 5524 -jsInitLen 253512 -parentBuildID 20250130195129 -ipcHandle 5624 -initialChannelId {b12c785c-e8c2-49f0-8db6-c5a2164fe5d9} -parentPid 3176 -crashReporter "\\.\pipe\gecko-crash-server-pipe.3176" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 8 tab
                  4⤵
                  • Checks processor information in registry
                  PID:6052
                • C:\Program Files\Mozilla Firefox\firefox.exe
                  "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 5700 -prefsLen 32952 -prefMapHandle 5688 -prefMapSize 270279 -jsInitHandle 5684 -jsInitLen 253512 -parentBuildID 20250130195129 -ipcHandle 5736 -initialChannelId {d2b335cc-e6e7-45d3-866e-e0507d4b39a3} -parentPid 3176 -crashReporter "\\.\pipe\gecko-crash-server-pipe.3176" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 9 tab
                  4⤵
                  • Checks processor information in registry
                  PID:1588
                • C:\Program Files\Mozilla Firefox\firefox.exe
                  "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 5940 -prefsLen 32952 -prefMapHandle 5944 -prefMapSize 270279 -jsInitHandle 5948 -jsInitLen 253512 -parentBuildID 20250130195129 -ipcHandle 5720 -initialChannelId {832ec519-906b-4f90-a0f7-367702f86948} -parentPid 3176 -crashReporter "\\.\pipe\gecko-crash-server-pipe.3176" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 10 tab
                  4⤵
                  • Checks processor information in registry
                  PID:492

          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

                C5643FFFEA92A5665EA3F3F42C97FA8CC3904334

                • Path C:\Users\Admin\AppData\Local\Mozilla\Firefox\Profiles\e4veoxpw.default-release\cache2\entries\C5643FFFEA92A5665EA3F3F42C97FA8CC3904334
                • Size 13KB
                • SHA256 edf947f9585f97a259bdaf58b9d6de4d10bdfdeab3c7be9ea005fe0754cc86c5
                • 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\e4veoxpw.default-release\datareporting\glean\db\data.safe.tmp
                • Size 6KB
                • SHA256 3ae4ec341e70304d4a9187d3a4bffa78fb9c41095f76e581d61a45beebe33a4a
                • MD5 SHA1 SHA512 SSDEEP TLSH

                data.safe.tmp

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\e4veoxpw.default-release\datareporting\glean\db\data.safe.tmp
                • Size 7KB
                • SHA256 122ddea37cb13850a8c85234f83171872952a9f0453fb52326240538c4362db8
                • MD5 SHA1 SHA512 SSDEEP TLSH

                events

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\e4veoxpw.default-release\datareporting\glean\events\events
                • Size 1KB
                • SHA256 21ff2a5b0b519ee6379b5f946646a36ac74337dbdb7255eb2065662f688cdc8f
                • MD5 SHA1 SHA512 TLSH

                21d458bd-6bd9-4d7b-b453-b140ae4dcbd5

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\e4veoxpw.default-release\datareporting\glean\pending_pings\21d458bd-6bd9-4d7b-b453-b140ae4dcbd5
                • Size 235B
                • SHA256 f701cb936542e23a1e5115a15614740ca0eed771cce2f4df7e6c373f7417c604
                • MD5 SHA1 SHA512 TLSH

                353fc561-fbf4-4372-81c5-40e0dc2b7797

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\e4veoxpw.default-release\datareporting\glean\pending_pings\353fc561-fbf4-4372-81c5-40e0dc2b7797
                • Size 2KB
                • SHA256 e0a734bbb237f0e3ab689df9ea994fa23ec8064d4774586d8e49d9dc72b57930
                • MD5 SHA1 SHA512 TLSH

                9e844314-4386-44ae-9f2e-788d4c91046f

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\e4veoxpw.default-release\datareporting\glean\pending_pings\9e844314-4386-44ae-9f2e-788d4c91046f
                • Size 2KB
                • SHA256 cc3df7f903c50db6190fba2f800593beea13d691c035830b3707dc57f032eace
                • MD5 SHA1 SHA512 TLSH

                bce8aa7e-e5fb-496a-8055-19a3dba35c42

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\e4veoxpw.default-release\datareporting\glean\pending_pings\bce8aa7e-e5fb-496a-8055-19a3dba35c42
                • Size 235B
                • SHA256 808d6e0051e56de4e0da7cca2808a10420a35dabe4ae6526a854fc40c9ddf96c
                • MD5 SHA1 SHA512 TLSH

                e175da73-214e-487c-ab03-1cea7c87b5fa

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\e4veoxpw.default-release\datareporting\glean\pending_pings\e175da73-214e-487c-ab03-1cea7c87b5fa
                • Size 883B
                • SHA256 09233a4964ba790ecf9b045379f57ec10c0445d51066748377f8f0ddad973cf6
                • MD5 SHA1 SHA512 TLSH

                f0eae6f6-e042-4fbd-a083-ee1c1b3fe294

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\e4veoxpw.default-release\datareporting\glean\pending_pings\f0eae6f6-e042-4fbd-a083-ee1c1b3fe294
                • Size 886B
                • SHA256 1c192ffd10a9cd456b940ca14c559f5b4f38498c7602f6200a4ecfb434c112fc
                • MD5 SHA1 SHA512 TLSH

                extensions.json

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\e4veoxpw.default-release\extensions.json
                • Size 16KB
                • SHA256 e5ae2e52c57a94b721bd86e351c7eef0f854733213fb36ef3248dd57237e9f0b
                • MD5 SHA1 SHA512 SSDEEP TLSH

                gmpopenh264.dll

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\e4veoxpw.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\e4veoxpw.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\e4veoxpw.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\e4veoxpw.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\e4veoxpw.default-release\prefs-1.js
                • Size 7KB
                • SHA256 7108ec70c6909dc1847fa2b7cda11f976eb9bce6045c7280d81a1063c84015a9
                • MD5 SHA1 SHA512 SSDEEP TLSH

                prefs.js

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\e4veoxpw.default-release\prefs.js
                • Size 6KB
                • SHA256 8f916bd0e80073476f3f2ea43112c353d236eb251626cc15c63a7b54b3fcd4c8
                • MD5 SHA1 SHA512 SSDEEP TLSH

                prefs.js

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\e4veoxpw.default-release\prefs.js
                • Size 6KB
                • SHA256 de7581f2999463e477ce4816490bd5c917ef57773651e4532a32d73ce19a11dd
                • MD5 SHA1 SHA512 SSDEEP TLSH

                recovery.baklz4

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\e4veoxpw.default-release\sessionstore-backups\recovery.baklz4
                • Size 4KB
                • SHA256 e2617f0d9d6c1112ad9df04184dcc801794cdb4287abc09dbe8914924ddffbfc
                • MD5 SHA1 SHA512 SSDEEP TLSH

                3870112724rsegmnoittet-es.sqlite

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\e4veoxpw.default-release\storage\permanent\chrome\idb\3870112724rsegmnoittet-es.sqlite
                • Size 5.5MB
                • SHA256 cadf275d4c1bf886ce3caf317e2a1d24b9084c959a21893e784eae5c9bdf5c60
                • MD5 SHA1 SHA512 SSDEEP TLSH

                memory/4200-10-0x0000000010000000-0x0000000010030000-memory.dmp

                memory/4200-5-0x00000000009B1000-0x00000000009B2000-memory.dmp

                memory/4200-381-0x00000000009B0000-0x0000000000F81000-memory.dmp

                memory/4200-400-0x0000000010000000-0x0000000010030000-memory.dmp

                memory/4200-382-0x0000000010000000-0x0000000010030000-memory.dmp

                memory/4200-348-0x0000000010000000-0x0000000010030000-memory.dmp

                memory/4200-3-0x0000000010000000-0x0000000010030000-memory.dmp

                memory/4200-12-0x0000000010000000-0x0000000010030000-memory.dmp

                memory/4200-11-0x00000000009B0000-0x0000000000F81000-memory.dmp

                memory/4200-599-0x0000000010000000-0x0000000010030000-memory.dmp