Analysis

  • max time kernel
    150s
  • max time network
    125s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    26/10/2026, 06:08

General

  • Target
    2026-10-25_f5b0085fcf2022fda6f6d3ef6afb324a_elex_floxif_remcos_stop.exe
  • Size 969KB
  • Sample261026-gv2nlact2w
  • SHA256 8d4816e5306e86f29f51a9d63dbf9844c70ea5929fff34c2ac148269192a5a88
  • 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
  • UPX dump on OEP (original entry point) 3 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 3 IoCs

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

  • Drops file in Program Files directory 2 IoCs
  • 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 1 IoCs

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

  • Checks SCSI registry key(s) 3 TTPs 4 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-10-25_f5b0085fcf2022fda6f6d3ef6afb324a_elex_floxif_remcos_stop.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-10-25_f5b0085fcf2022fda6f6d3ef6afb324a_elex_floxif_remcos_stop.exe"
    1⤵
    • Loads dropped DLL
    • Enumerates connected drives
    • Drops file in Program Files directory
    • Reads the TCP/IP host and domain name from the registry
    • System Location Discovery: System Language Discovery
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:1780

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

        memory/1780-4-0x0000000010000000-0x0000000010030000-memory.dmp

        memory/1780-6-0x00000000006E0000-0x00000000006E1000-memory.dmp

        memory/1780-13-0x0000000010000000-0x0000000010030000-memory.dmp