Analysis

  • max time kernel
    148s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28-12-2024 12:25

General

  • Target

    2024-12-28_be1ec8f69ba36059aba24185071a5bca_floxif_mafia.exe

  • Size

    2.5MB

  • MD5

    be1ec8f69ba36059aba24185071a5bca

  • SHA1

    46c5f19206584d21aa125cc23012736c367e4869

  • SHA256

    6a6d1dd59e29e15bfbd1aed8e0acee28518381ec070d729384f65a3bdbe83b46

  • SHA512

    25887a31dcc977616568ae69444c76ffb162de0e4d42cec764845c0932d07ce47d43e7df6a75fb768f976110808d04f4c7901d13bfe3a32cc3fa7b558eebf78f

  • SSDEEP

    49152:tuIPK4ofs2hPd2l177BTK2VbDsar1YDjr:tj4fs2hPIl1/4

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
  • Event Triggered Execution: AppInit DLLs 1 TTPs

    Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by AppInit DLLs loaded into processes.

  • ACProtect 1.3x - 1.4x DLL software 1 IoCs

    Detects file using ACProtect software.

  • Loads dropped DLL 7 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\2024-12-28_be1ec8f69ba36059aba24185071a5bca_floxif_mafia.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-12-28_be1ec8f69ba36059aba24185071a5bca_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:3944
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3944 -s 912
      2⤵
      • Loads dropped DLL
      • Program crash
      PID:1700
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3944 -s 840
      2⤵
      • Loads dropped DLL
      • Program crash
      PID:3976
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3944 -s 848
      2⤵
      • Loads dropped DLL
      • Program crash
      PID:620
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 3944 -ip 3944
    1⤵
    • Loads dropped DLL
    PID:1668
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 3944 -ip 3944
    1⤵
    • Loads dropped DLL
    PID:4724
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 3944 -ip 3944
    1⤵
    • Loads dropped DLL
    PID:2368

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/3944-4-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/3944-6-0x0000000000761000-0x0000000000762000-memory.dmp

    Filesize

    4KB

  • memory/3944-19-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/3944-17-0x0000000000760000-0x00000000009CA000-memory.dmp

    Filesize

    2.4MB