Analysis

  • max time kernel
    150s
  • max time network
    148s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    27/10/2026, 22:27

General

  • Target
    2026-10-27_efeaff7c83b5eab615dc390feb351ae3_amadey_elex_floxif_smoke-loader.exe
  • Size 352KB
  • Sample261027-2dfd9axsfx
  • SHA256 a5b571d103754205dd2e7b846e38d65c554f0c0a7294f56436118858bdd068dd
  • 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) 8 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.

  • ACProtect 1.3x - 1.4x DLL software 1 IoCs

    Detects file using ACProtect software.

  • Loads dropped DLL 4 IoCs
  • 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.

  • UPX packed file 8 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 2 IoCs

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

  • Modifies registry class 4 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SendNotifyMessage 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-10-27_efeaff7c83b5eab615dc390feb351ae3_amadey_elex_floxif_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-10-27_efeaff7c83b5eab615dc390feb351ae3_amadey_elex_floxif_smoke-loader.exe"
    1⤵
    • Loads dropped DLL
    • Adds Run key to start application
    • 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
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    PID:5168
  • C:\Users\Admin\AppData\Local\Temp\2026-10-27_efeaff7c83b5eab615dc390feb351ae3_amadey_elex_floxif_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-10-27_efeaff7c83b5eab615dc390feb351ae3_amadey_elex_floxif_smoke-loader.exe" -atboottime
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    PID:4716

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/4716-16-0x0000000000780000-0x00000000007B0000-memory.dmp

        memory/4716-15-0x0000000000780000-0x00000000007B0000-memory.dmp

        memory/4716-14-0x0000000010000000-0x0000000010030000-memory.dmp

        memory/4716-17-0x0000000010000000-0x0000000010030000-memory.dmp

        memory/5168-4-0x0000000010000000-0x0000000010030000-memory.dmp

        memory/5168-20-0x0000000010000000-0x0000000010030000-memory.dmp

        memory/5168-22-0x0000000010000000-0x0000000010030000-memory.dmp

        memory/5168-25-0x0000000010000000-0x0000000010030000-memory.dmp

        memory/5168-27-0x0000000010000000-0x0000000010030000-memory.dmp