Overview

overview

10

Static

static

10

2026-07-30...os.exe

windows10-2004-x64

10

2026-07-30...os.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    30/07/2026, 14:44

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General

  • Target
    2026-07-30_efc1677b5dd18d1cb4a21dc13002bf4c_elex_emotet_floxif_icedid_remcos.exe
  • Size 3.7MB
  • Sample260730-r36bvsbb44
  • SHA256 50df0f125a1da092838a9bd4649290ae73a4831d4674e5275218785cebb166c1
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
adwarebackdoordiscoveryfloxifspywarestealertrojanupx

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.

  • Installs/modifies Browser Helper Object 2 TTPs 8 IoCs

    BHOs are DLL modules which act as plugins for Internet Explorer.

    stealeradware
  • 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 2 IoCs

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

    discovery
  • Modifies Internet Explorer settings 1 TTPs 25 IoCs
    adwarespyware
  • Modifies registry class 16 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SendNotifyMessage 1 IoCs
  • Suspicious use of SetWindowsHookEx 7 IoCs
  • Suspicious use of WriteProcessMemory 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-07-30_efc1677b5dd18d1cb4a21dc13002bf4c_elex_emotet_floxif_icedid_remcos.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-07-30_efc1677b5dd18d1cb4a21dc13002bf4c_elex_emotet_floxif_icedid_remcos.exe"
    1⤵
    • Loads dropped DLL
    • Enumerates connected drives
    • Installs/modifies Browser Helper Object
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4160
    • C:\Windows\SysWOW64\regsvr32.exe
      "C:\Windows\System32\regsvr32.exe" /s "C:\Users\Admin\AppData\Local\Temp\IDMShellExt64.dll"
      2⤵
      • System Location Discovery: System Language Discovery
      PID:3240

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/4160-4-0x0000000010000000-0x0000000010030000-memory.dmp
        Download

        memory/4160-12-0x0000000010000000-0x0000000010030000-memory.dmp
        Download

        memory/4160-13-0x0000000010000000-0x0000000010030000-memory.dmp
        Download

        memory/4160-17-0x0000000010000000-0x0000000010030000-memory.dmp
        Download

        memory/4160-20-0x0000000010000000-0x0000000010030000-memory.dmp
        Download