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Analysis

  • max time kernel
    106s
  • max time network
    107s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11/09/2024, 12:33

General

  • Target

    2024-09-11_b872b3e1f11315bdf9f6e2793978fbf3_floxif_mafia.exe

  • Size

    2.5MB

  • MD5

    b872b3e1f11315bdf9f6e2793978fbf3

  • SHA1

    4543b7ca1606ca33293c2e7d630373fa75fa00bd

  • SHA256

    20c1d436d6cfec8e75827fae54fb992c2db829513b8a1d2386ccbbf18040e786

  • SHA512

    9f9bf93d7e6328dd4f74c2506b54976148d5b661cc3948a403e14d05e7c67940df9fe6c08b1393b2eb5ee2968fd588c73f5f3fd6304ddefcb9516b01ecad0b68

  • SSDEEP

    49152:tuIRKlofs2hPd2l177BTK2VbDsar1YDjG:tj/fs2hPIl1/d

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\2024-09-11_b872b3e1f11315bdf9f6e2793978fbf3_floxif_mafia.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-11_b872b3e1f11315bdf9f6e2793978fbf3_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:788
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 788 -s 908
      2⤵
      • Program crash
      PID:4812
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 788 -s 832
      2⤵
      • Program crash
      PID:2864
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 788 -s 960
      2⤵
      • Program crash
      PID:4172
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 788 -ip 788
    1⤵
      PID:3032
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 788 -ip 788
      1⤵
        PID:4520
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 788 -ip 788
        1⤵
          PID:1220

        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/788-4-0x0000000010000000-0x0000000010030000-memory.dmp

          Filesize

          192KB

        • memory/788-6-0x0000000000591000-0x0000000000592000-memory.dmp

          Filesize

          4KB

        • memory/788-13-0x0000000010000000-0x0000000010030000-memory.dmp

          Filesize

          192KB

        • memory/788-11-0x0000000000590000-0x00000000007FA000-memory.dmp

          Filesize

          2.4MB