Analysis

  • max time kernel
    94s
  • 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
    13/09/2024, 12:36

General

  • Target
    2024-09-13_154d2d3465689d40494b04bf5d54439b_floxif_hijackloader_mafia.exe
  • Size 2.7MB
  • Sample240913-pswcss1gmb
  • SHA256 dc4586419f7ab5278827a6601f1420eac9797a4a56a17a4de40127287efbc58e
  • MD5 SHA1 SHA512 SSDEEP

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.

  • 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\2024-09-13_154d2d3465689d40494b04bf5d54439b_floxif_hijackloader_mafia.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-13_154d2d3465689d40494b04bf5d54439b_floxif_hijackloader_mafia.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    PID:1096
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1096 -s 804
      2⤵
      • Program crash
      PID:4156
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1096 -s 816
      2⤵
      • Program crash
      PID:2036
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 1096 -ip 1096
    1⤵
      PID:3688
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 1096 -ip 1096
      1⤵
        PID:4372

      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

            memory/1096-4-0x0000000010000000-0x0000000010030000-memory.dmp

            memory/1096-6-0x0000000000821000-0x0000000000822000-memory.dmp

            memory/1096-9-0x0000000010000000-0x0000000010030000-memory.dmp

            memory/1096-7-0x0000000000820000-0x0000000000AC8000-memory.dmp