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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
    10/12/2024, 12:27

General

  • Target

    2024-12-10_50795b684000a25dad865a09be39d5ac_floxif_mafia.exe

  • Size

    1.8MB

  • MD5

    50795b684000a25dad865a09be39d5ac

  • SHA1

    849518b3a4a1a0af5a14de32945538d7ce258b15

  • SHA256

    79056ee2ed070c708a1639843bdd14d574d7d0007e4f1bbe11b01a0a9ad014aa

  • SHA512

    ea01f9b96256839d2910bc9c4c52a65f2c5d46db902f5e20329af8464777e6af934f847359e15aaf1c83240ca3e446a5a1f2a56eaf0cb48914bbcfb253d22261

  • SSDEEP

    49152:mSRFWpiINDnQOklug56b5KEZccMqR2OdWc9hK/9pjDgO/rF9sSV2Rc:mwWpiINnGll6b5KEO5qR9dWP/9pQO/rR

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 5 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 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\2024-12-10_50795b684000a25dad865a09be39d5ac_floxif_mafia.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-12-10_50795b684000a25dad865a09be39d5ac_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:1204
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1204 -s 1524
      2⤵
      • Loads dropped DLL
      • Program crash
      PID:4984
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1204 -s 1532
      2⤵
      • Loads dropped DLL
      • Program crash
      PID:1476
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1204 -ip 1204
    1⤵
    • Loads dropped DLL
    PID:5112
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 1204 -ip 1204
    1⤵
    • Loads dropped DLL
    PID:1444

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/1204-4-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/1204-6-0x0000000000631000-0x0000000000632000-memory.dmp

    Filesize

    4KB

  • memory/1204-17-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/1204-15-0x0000000000630000-0x00000000007E9000-memory.dmp

    Filesize

    1.7MB