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Analysis

  • max time kernel
    94s
  • max time network
    95s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240730-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240730-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02/08/2024, 12:29

General

  • Target

    2024-08-02_55751e3fdf60e398de168ee5959b8140_floxif_mafia.exe

  • Size

    2.5MB

  • MD5

    55751e3fdf60e398de168ee5959b8140

  • SHA1

    a152bbec2f7d5575faa03003c383a21c10d9f84e

  • SHA256

    911318f72864a420888da9501c284807b2f383403d880def3958e6bc011ea19c

  • SHA512

    b35c4151e56ec9c46a345bc65214bfec32dc2d619eb874876eceb3e50043638af6d31884019b9f129fe8e83542f53869a4fe8e93081f5f0f9a95fe223e896df3

  • SSDEEP

    49152:tu1IKeofs2hPd2l177BTK2VbDsar1YDjQ:tG7fs2hPIl1/X

Malware Config

Signatures

  • Floxif, Floodfix

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

  • Detects Floxif payload 1 IoCs
  • 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.

  • 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
  • Program crash 3 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.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-08-02_55751e3fdf60e398de168ee5959b8140_floxif_mafia.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-08-02_55751e3fdf60e398de168ee5959b8140_floxif_mafia.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
    PID:2380
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2380 -s 912
      2⤵
      • Program crash
      PID:1648
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2380 -s 832
      2⤵
      • Program crash
      PID:2036
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2380 -s 932
      2⤵
      • Program crash
      PID:1276
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 2380 -ip 2380
    1⤵
      PID:1996
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 2380 -ip 2380
      1⤵
        PID:4224
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 2380 -ip 2380
        1⤵
          PID:2860

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Program Files\Common Files\System\symsrv.dll

          Filesize

          67KB

          MD5

          7574cf2c64f35161ab1292e2f532aabf

          SHA1

          14ba3fa927a06224dfe587014299e834def4644f

          SHA256

          de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

          SHA512

          4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

        • memory/2380-5-0x0000000010000000-0x0000000010030000-memory.dmp

          Filesize

          192KB

        • memory/2380-6-0x0000000000FD1000-0x0000000000FD2000-memory.dmp

          Filesize

          4KB

        • memory/2380-13-0x0000000010000000-0x0000000010030000-memory.dmp

          Filesize

          192KB

        • memory/2380-11-0x0000000000FD0000-0x000000000123A000-memory.dmp

          Filesize

          2.4MB