Overview

overview

10

Static

static

7

b1ddbadf76...1a.exe

windows7-x64

10

b1ddbadf76...1a.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    133s
  • max time network
    123s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28/08/2024, 02:43

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General

  • Target
    b1ddbadf76df0b98d3832c2a5a3b91a1dfe71a27dd5a2012094870b7f1fea81a.exe
  • Size 114KB
  • Sample240828-c7vctstdnl
  • SHA256 b1ddbadf76df0b98d3832c2a5a3b91a1dfe71a27dd5a2012094870b7f1fea81a
  • 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.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Loads dropped DLL 1 IoCs
  • UPX packed file 5 IoCs

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

    upx
  • Drops file in Program Files directory 1 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
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b1ddbadf76df0b98d3832c2a5a3b91a1dfe71a27dd5a2012094870b7f1fea81a.exe
    "C:\Users\Admin\AppData\Local\Temp\b1ddbadf76df0b98d3832c2a5a3b91a1dfe71a27dd5a2012094870b7f1fea81a.exe"
    1⤵
    • Checks computer location settings
    • Loads dropped DLL
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4068
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\BC89.tmp\½Ï¾µÀÌ.cmd" "
      2⤵
      • System Location Discovery: System Language Discovery
      PID:1576

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

        ½Ï¾µÀÌ.cmd
        • Path C:\Users\Admin\AppData\Local\Temp\BC89.tmp\½Ï¾µÀÌ.cmd
        • Size 192B
        • SHA256 c3d9b52369385e57562db2fe43c2443fd5accd41f1e50bf3f33f45dc51ef6daa
        • MD5 SHA1 SHA512
        Submit Download

        memory/4068-0-0x0000000000400000-0x0000000000418000-memory.dmp
        Download

        memory/4068-3-0x0000000010000000-0x0000000010030000-memory.dmp
        Download

        memory/4068-11-0x0000000000400000-0x0000000000418000-memory.dmp
        Download

        memory/4068-13-0x0000000010000000-0x0000000010030000-memory.dmp
        Download