Overview

overview

10

Static

static

5

2026-10-22...os.exe

windows10-2004-x64

10

2026-10-22...os.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    149s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260911-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    23/10/2026, 20:09

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General

  • Target
    2026-10-22_cd9583ad56578bd8ec5d85db3779eb30_agent-tesla_amadey_darkgate_elex_floxif_hawkeye_maze_remcos.exe
  • Size 999KB
  • Sample261023-yxarbsdw21
  • SHA256 b1abb3b4f8abe61b1349c924fb3f90164453fcf258f7467ede32c5f8359c4a59
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
backdoordiscoveryfloxiftrojanupx

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) 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.

  • AutoIT Executable 14 IoCs

    AutoIT scripts compiled to PE executables.

  • UPX packed file 6 IoCs

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

    upx
  • 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.

    discovery
  • 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.

    discovery
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 64 IoCs
  • Suspicious use of SendNotifyMessage 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-10-22_cd9583ad56578bd8ec5d85db3779eb30_agent-tesla_amadey_darkgate_elex_floxif_hawkeye_maze_remcos.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-10-22_cd9583ad56578bd8ec5d85db3779eb30_agent-tesla_amadey_darkgate_elex_floxif_hawkeye_maze_remcos.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
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    PID:1720

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

        symsrv.dll.000
        • Path C:\Program Files\Common Files\System\symsrv.dll.000
        • Size 114B
        • SHA256 aefc503b1ed462d7b6280228a7b5b710792273b78934426f88325341ac5b5a92
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        memory/1720-26-0x0000000000B60000-0x0000000000C4D000-memory.dmp
        Download

        memory/1720-28-0x0000000000B60000-0x0000000000C4D000-memory.dmp
        Download

        memory/1720-16-0x0000000000B60000-0x0000000000C4D000-memory.dmp
        Download

        memory/1720-5-0x0000000000B61000-0x0000000000B62000-memory.dmp
        Download

        memory/1720-21-0x0000000000B60000-0x0000000000C4D000-memory.dmp
        Download

        memory/1720-22-0x0000000010000000-0x0000000010030000-memory.dmp
        Download

        memory/1720-24-0x0000000000B60000-0x0000000000C4D000-memory.dmp
        Download

        memory/1720-25-0x0000000010000000-0x0000000010030000-memory.dmp
        Download

        memory/1720-3-0x0000000010000000-0x0000000010030000-memory.dmp
        Download

        memory/1720-15-0x0000000010000000-0x0000000010030000-memory.dmp
        Download

        memory/1720-30-0x0000000000B60000-0x0000000000C4D000-memory.dmp
        Download

        memory/1720-32-0x0000000000B60000-0x0000000000C4D000-memory.dmp
        Download

        memory/1720-34-0x0000000000B60000-0x0000000000C4D000-memory.dmp
        Download

        memory/1720-37-0x0000000010000000-0x0000000010030000-memory.dmp
        Download

        memory/1720-36-0x0000000000B60000-0x0000000000C4D000-memory.dmp
        Download

        memory/1720-38-0x0000000000B60000-0x0000000000C4D000-memory.dmp
        Download

        memory/1720-40-0x0000000000B60000-0x0000000000C4D000-memory.dmp
        Download

        memory/1720-42-0x0000000000B60000-0x0000000000C4D000-memory.dmp
        Download

        memory/1720-44-0x0000000000B60000-0x0000000000C4D000-memory.dmp
        Download

        memory/1720-46-0x0000000000B60000-0x0000000000C4D000-memory.dmp
        Download