Analysis

  • max time kernel
    137s
  • max time network
    128s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240709-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28/07/2024, 14:34

General

  • Target

    2024-07-28_f19fd2ff2298148345e604d3693b5218_floxif_mafia.exe

  • Size

    1.8MB

  • MD5

    f19fd2ff2298148345e604d3693b5218

  • SHA1

    7fd8c62978701b8425c0618c014a607d90eb540c

  • SHA256

    d775b29373ad34f80419823ffe761d5e2e65729776e3840e62e82ebfd837d037

  • SHA512

    f9e8b6e4a9b6039d9b6b652c1aedac3ffe2406396a4af77c652685a6cbf6241e91bd819c1157419b21f1ed81a397953d09d80c17ce9c03158aa23ca924df1c04

  • SSDEEP

    49152:lI27JZDjxrJUf3gWdNcDJI7yAZHyykiG8VuGNZ7Lk9LcdAGyL+w9//kqM01JuwXi:l3JZDVrc3hNcDJI7yAxyyLuiZ7Lk9U3

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 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-07-28_f19fd2ff2298148345e604d3693b5218_floxif_mafia.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-07-28_f19fd2ff2298148345e604d3693b5218_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
    • Suspicious use of SetWindowsHookEx
    PID:3536
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3536 -s 1500
      2⤵
      • Program crash
      PID:1780
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3536 -s 1532
      2⤵
      • Program crash
      PID:392
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3536 -ip 3536
    1⤵
      PID:3556
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 3536 -ip 3536
      1⤵
        PID:3040

      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/3536-4-0x0000000010000000-0x0000000010030000-memory.dmp

              Filesize

              192KB

            • memory/3536-6-0x0000000000D41000-0x0000000000D42000-memory.dmp

              Filesize

              4KB

            • memory/3536-13-0x0000000010000000-0x0000000010030000-memory.dmp

              Filesize

              192KB

            • memory/3536-11-0x0000000000D40000-0x0000000000EF9000-memory.dmp

              Filesize

              1.7MB