Overview

overview

10

Static

static

1

2024-09-05...if.exe

windows7-x64

10

2024-09-05...if.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    93s
  • max time network
    95s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05/09/2024, 18:25

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General

  • Target
    2024-09-05_a2c1fb7364335caf43c8337aa05452dd_bkransomware_floxif.exe
  • Size 3.7MB
  • Sample240905-w2s3csxeng
  • SHA256 277182bd51d3deeeda5155f11676837de517b598f9cf7e15d21a9bbe56806000
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
floxifbackdoordiscoverytrojanupx

Malware Config

Signatures

  • Floxif, Floodfix

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

    backdoortrojanfloxif
  • Detects Floxif payload 1 IoCs
    backdoor
  • ACProtect 1.3x - 1.4x DLL software 1 IoCs

    Detects file using ACProtect software.

  • Loads dropped DLL 1 IoCs
  • UPX packed file 3 IoCs

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

    upx
  • 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 Program Files directory 1 IoCs
  • 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 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-09-05_a2c1fb7364335caf43c8337aa05452dd_bkransomware_floxif.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-05_a2c1fb7364335caf43c8337aa05452dd_bkransomware_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 SetWindowsHookEx
    PID:4776

Network

        MITRE ATT&CK Enterprise v15

        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
        Submit Download

        2024-09-05_a2c1fb7364335caf43c8337aa05452dd_bkransomware_floxif_PCULog0.txt
        • Path C:\Users\Admin\AppData\Local\Temp\2024-09-05_a2c1fb7364335caf43c8337aa05452dd_bkransomware_floxif_PCULog0.txt
        • Size 846B
        • SHA256 beeb73ff532d320db3e01cdfe600534d67d17a3bf86d03e22407c7c0ac145fa0
        • MD5 SHA1 SHA512
        Submit Download

        memory/4776-4-0x0000000010000000-0x0000000010030000-memory.dmp
        Download

        memory/4776-29-0x0000000010000000-0x0000000010030000-memory.dmp
        Download

        memory/4776-27-0x0000000000170000-0x0000000000519000-memory.dmp
        Download