Overview

overview

10

Static

static

5

2026-08-08...op.exe

windows10-2004-x64

10

2026-08-08...op.exe

windows11-ltsc_2024-x64

10

Analysis

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

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    08/08/2026, 16:15

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General

  • Target
    2026-08-08_440431d0ed2ada689c90f1a33a90c2ef_agent-tesla_backswap_elex_floxif_stop.exe
  • Size 923KB
  • Sample260808-tp8aeat1ex
  • SHA256 058afd51ca6cc011c395fa11be069f5904c61895b27cfcde4aab8549381ae5d5
  • 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) 5 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 5 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 1 IoCs
  • Suspicious use of FindShellTrayWindow 64 IoCs
  • Suspicious use of SendNotifyMessage 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-08-08_440431d0ed2ada689c90f1a33a90c2ef_agent-tesla_backswap_elex_floxif_stop.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-08_440431d0ed2ada689c90f1a33a90c2ef_agent-tesla_backswap_elex_floxif_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
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    PID:5716
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k GPSvcGroup
    1⤵
      PID:3960

    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/5716-4-0x0000000010000000-0x0000000010030000-memory.dmp
          Download

          memory/5716-17-0x0000000010000000-0x0000000010030000-memory.dmp
          Download

          memory/5716-21-0x0000000010000000-0x0000000010030000-memory.dmp
          Download

          memory/5716-23-0x0000000010000000-0x0000000010030000-memory.dmp
          Download