Overview

overview

10

Static

static

5

2026-08-24...op.exe

windows10-2004-x64

10

2026-08-24...op.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    149s
  • max time network
    138s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    25/08/2026, 12:58

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General

  • Target
    2026-08-24_5770453e433ba3d5dd2fe298f422e772_agent-tesla_backswap_elex_floxif_remcos_stop.exe
  • Size 900KB
  • Sample260825-p7yfpsyycx
  • SHA256 5888b2c5780761111ffa953af58ce26b147ce9ae1f4d0de28d15a1fb153a6678
  • 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.

  • UPX packed file 6 IoCs

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

    upx
  • Drops file in Program Files 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 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 behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-08-24_5770453e433ba3d5dd2fe298f422e772_agent-tesla_backswap_elex_floxif_remcos_stop.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-24_5770453e433ba3d5dd2fe298f422e772_agent-tesla_backswap_elex_floxif_remcos_stop.exe"
    1⤵
    • Loads dropped DLL
    • Enumerates connected drives
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    PID:4964

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

        2026-08-24_5770453e433ba3d5dd2fe298f422e772_agent-tesla_backswap_elex_floxif_remcos_stop.ini
        • Path C:\Users\Admin\AppData\Local\Temp\2026-08-24_5770453e433ba3d5dd2fe298f422e772_agent-tesla_backswap_elex_floxif_remcos_stop.ini
        • Size 1KB
        • SHA256 bbbef9cd22900014d5abd4f505179bd2771da706aa0d8db65debc43436d84deb
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        4a9a6c4n.tmp
        • Path C:\Users\Admin\AppData\Local\Temp\4a9a6c4n.tmp
        • Size 42KB
        • SHA256 f34d58b7480366ee7beaeb2e3f72e2d5a04026d6b50c26a4bf66b27be59e45fe
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        48C713401364.tmp
        • Path C:\Users\Admin\AppData\Local\Temp\A1D26E2\48C713401364.tmp
        • Size 824KB
        • SHA256 8c2d87cf54cb8259574d7e19aef7ee65f7efc946ad9e25cf7e74760d034b7764
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        memory/4964-4-0x0000000010000000-0x0000000010030000-memory.dmp
        Download

        memory/4964-60-0x0000000010000000-0x0000000010030000-memory.dmp
        Download

        memory/4964-64-0x0000000010000000-0x0000000010030000-memory.dmp
        Download

        memory/4964-67-0x0000000010000000-0x0000000010030000-memory.dmp
        Download

        memory/4964-70-0x0000000010000000-0x0000000010030000-memory.dmp
        Download