Analysis

  • max time kernel
    95s
  • max time network
    143s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18-12-2024 12:27

General

  • Target

    2024-12-18_1b5bd62be6f60dc09907951463782d34_floxif_mafia.exe

  • Size

    2.5MB

  • MD5

    1b5bd62be6f60dc09907951463782d34

  • SHA1

    6f5d0ecfc96f2275a77d00e25cf37fa92ff8643c

  • SHA256

    fb29a11d9922ce6458004c508c020212674b9b3ee83abefdb70faee087f485c2

  • SHA512

    df6a615b9372d537c7d1ec2f3846e84f2e2b53d3dcb98ed3896a3e7dadd1d4e842fc8776d47e3c768440f595f46cc8d5497a779718694a14ff151c56a7dde769

  • SSDEEP

    49152:tuIsK0ofs2hPd2l177BTK2VbDsar1YDjP:tjxfs2hPIl1/c

Malware Config

Signatures

  • Floxif family
  • 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
  • Enumerates connected drives 3 TTPs 1 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • 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 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\2024-12-18_1b5bd62be6f60dc09907951463782d34_floxif_mafia.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-12-18_1b5bd62be6f60dc09907951463782d34_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:3344
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3344 -s 1576
      2⤵
      • Program crash
      PID:1648
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3344 -s 1560
      2⤵
      • Program crash
      PID:4136
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3344 -s 1568
      2⤵
      • Program crash
      PID:4632
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 360 -p 3344 -ip 3344
    1⤵
      PID:1536
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 3344 -ip 3344
      1⤵
        PID:2788
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 3344 -ip 3344
        1⤵
          PID:1512

        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/3344-4-0x0000000010000000-0x0000000010030000-memory.dmp

          Filesize

          192KB

        • memory/3344-6-0x0000000000AE1000-0x0000000000AE2000-memory.dmp

          Filesize

          4KB

        • memory/3344-13-0x0000000010000000-0x0000000010030000-memory.dmp

          Filesize

          192KB

        • memory/3344-11-0x0000000000AE0000-0x0000000000D4A000-memory.dmp

          Filesize

          2.4MB