Analysis

  • max time kernel
    150s
  • max time network
    142s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    13/08/2026, 16:50

General

  • Target
    2026-08-13_2f072b1301e27f10ccb768dd155aef58_elex_floxif_glassworm.exe
  • Size 3.7MB
  • Sample260813-vcrybsvapb
  • SHA256 0787c23df959248a531ce3d46d718556905dea4717061cb409734208f57468c3
  • 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 Windows executables referencing Office ProtectedView registry keys. Observed modifying Offic 1 IoCs
  • Custom signature
    UPX dump on OEP (original entry point) 6 IoCs
  • ACProtect 1.3x - 1.4x DLL software 1 IoCs

    Detects file using ACProtect software.

  • Loads dropped DLL 1 IoCs
  • Enumerates connected drives 3 TTPs 1 IoCs

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

  • UPX packed file 6 IoCs

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

  • Drops file in Program Files directory 2 IoCs
  • Executes a command shell one-liner 1 TTPs 1 IoCs

    Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-08-13_2f072b1301e27f10ccb768dd155aef58_elex_floxif_glassworm.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-13_2f072b1301e27f10ccb768dd155aef58_elex_floxif_glassworm.exe"
    1⤵
    • Loads dropped DLL
    • Enumerates connected drives
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1104
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c pause
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      PID:4720

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

        memory/1104-3-0x0000000010000000-0x0000000010030000-memory.dmp

        memory/1104-11-0x0000000010000000-0x0000000010030000-memory.dmp

        memory/1104-9-0x0000000000400000-0x00000000006BD000-memory.dmp

        memory/1104-20-0x0000000010000000-0x0000000010030000-memory.dmp

        memory/1104-24-0x0000000010000000-0x0000000010030000-memory.dmp

        memory/1104-27-0x0000000010000000-0x0000000010030000-memory.dmp