Overview

overview

10

Static

static

3

2026-08-09...if.exe

windows10-2004-x64

10

2026-08-09...if.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    146s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    09/08/2026, 17:14

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General

  • Target
    2026-08-09_0bb9943f9d8c15d1fdd843f5d1ad6322_elex_floxif.exe
  • Size 1.4MB
  • Sample260809-vsdewaaq4z
  • SHA256 ca53887b9a6b61672c95b3ca40206e28ff27a7bfd9603b5ee877d48152fac054
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
backdoordiscoveryfloxifpersistenceprivilege_escalationtrojanupx

Malware Config

Signatures

  • Family: Floxif, Floodfix

    Floxif aka FloodFix is a file-changing trojan and backdoor written in C++.

    backdoortrojanfloxif
  • Detects Floxif payload 1 IoCs
    backdoor
  • UPX dump on OEP (original entry point) 3 IoCs
  • Boot or Logon Autostart Execution: Port Monitors 1 TTPs 13 IoCs

    Adversaries may use port monitors to run an adversary supplied DLL during system boot for persistence or privilege escalation.

    persistence
  • 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.

    persistenceprivilege_escalation
  • 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.

  • Drops file in System32 directory 22 IoCs
  • UPX packed file 3 IoCs

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

    upx
  • Drops file in Program Files directory 1 IoCs
  • Drops file in Windows 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 5 IoCs

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

    discovery
  • Checks SCSI registry key(s) 3 TTPs 16 IoCs

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

  • Modifies data under HKEY_USERS 12 IoCs
  • Runs net.exe
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-08-09_0bb9943f9d8c15d1fdd843f5d1ad6322_elex_floxif.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-09_0bb9943f9d8c15d1fdd843f5d1ad6322_elex_floxif.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:5920
    • C:\Windows\SysWOW64\net.exe
      "C:\Windows\System32\net.exe" stop spooler /y
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2272
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop spooler /y
        3⤵
        • System Location Discovery: System Language Discovery
        PID:1464
    • C:\Windows\SysWOW64\net.exe
      "C:\Windows\System32\net.exe" start spooler
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1040
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 start spooler
        3⤵
        • System Location Discovery: System Language Discovery
        PID:4468
  • C:\Windows\System32\spoolsv.exe
    C:\Windows\System32\spoolsv.exe
    1⤵
    • Boot or Logon Autostart Execution: Port Monitors
    • Drops file in Windows directory
    • Checks SCSI registry key(s)
    • Modifies data under HKEY_USERS
    PID:3412
  • C:\Windows\system32\DrvInst.exe
    DrvInst.exe "4" "d" "C:\Windows\system32\spool\tools\Microsoft Print To PDF\prnms009.Inf" "9" "43057df13" "000000000000017C" "WinSta0\Default" "0000000000000180" "208" "C:\Windows\system32\spool\tools\Microsoft Print To PDF"
    1⤵
    • Drops file in System32 directory
    • Drops file in Windows directory
    PID:1244

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
        Submit Download

        memory/5920-4-0x0000000010000000-0x0000000010030000-memory.dmp
        Download

        memory/5920-11-0x0000000010000000-0x0000000010030000-memory.dmp
        Download

        memory/5920-10-0x0000000000400000-0x00000000004E8000-memory.dmp
        Download