Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240729-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240729-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28/07/2024, 12:42

General

  • Target

    2024-07-28_d82879c14850a7dd3fb01ef08bf1dc79_floxif_hijackloader_mafia.exe

  • Size

    2.7MB

  • MD5

    d82879c14850a7dd3fb01ef08bf1dc79

  • SHA1

    84fc8c10e1ff0af257bd9b6f4c6516e9cc5250c5

  • SHA256

    0fcb11da7d754a1b319faf849157d1088e81c1c232a57ad1d995824ec223c2ba

  • SHA512

    202f641f8b93676090db076433d29754608debc3a4cf19a4d7f2e26c4585d59cd0947988c7c90945494e392ccffc27f606e415ac2f7928aeebd3b41c31893c1c

  • SSDEEP

    49152:Flks4A6lVLX6Sc6BNUFFIIsTp69FlNN7boUvH6u//zHewhXPwMQ9i9ZMW/KMZKWe:/n6r6+BUFIIsTY9Fl/7boUi+SwZPwMQX

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 2 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
  • Suspicious use of SetWindowsHookEx 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-07-28_d82879c14850a7dd3fb01ef08bf1dc79_floxif_hijackloader_mafia.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-07-28_d82879c14850a7dd3fb01ef08bf1dc79_floxif_hijackloader_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
    • Suspicious use of SetWindowsHookEx
    PID:620
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 620 -s 820
      2⤵
      • Program crash
      PID:1828
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 620 -s 732
      2⤵
      • Program crash
      PID:2836
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 620 -ip 620
    1⤵
      PID:3920
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 620 -ip 620
      1⤵
        PID:2488

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

            Loading Replay Monitor...

            Downloads

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

              Filesize

              67KB

              MD5

              7574cf2c64f35161ab1292e2f532aabf

              SHA1

              14ba3fa927a06224dfe587014299e834def4644f

              SHA256

              de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

              SHA512

              4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

            • memory/620-4-0x0000000010000000-0x0000000010030000-memory.dmp

              Filesize

              192KB

            • memory/620-6-0x0000000000E51000-0x0000000000E52000-memory.dmp

              Filesize

              4KB

            • memory/620-13-0x0000000010000000-0x0000000010030000-memory.dmp

              Filesize

              192KB

            • memory/620-11-0x0000000000E50000-0x00000000010F8000-memory.dmp

              Filesize

              2.7MB