Analysis

  • max time kernel
    148s
  • max time network
    137s
  • 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, 14:24

General

  • Target

    0fcb11da7d754a1b319faf849157d1088e81c1c232a57ad1d995824ec223c2ba.exe

  • Size

    2.7MB

  • MD5

    d82879c14850a7dd3fb01ef08bf1dc79

  • SHA1

    84fc8c10e1ff0af257bd9b6f4c6516e9cc5250c5

  • SHA256

    0fcb11da7d754a1b319faf849157d1088e81c1c232a57ad1d995824ec223c2ba

  • SHA512

    202f641f8b93676090db076433d29754608debc3a4cf19a4d7f2e26c4585d59cd0947988c7c90945494e392ccffc27f606e415ac2f7928aeebd3b41c31893c1c

  • SSDEEP

    49152:Flks4A6lVLX6Sc6BNUFFIIsTp69FlNN7boUvH6u//zHewhXPwMQ9i9ZMW/KMZKWe:/n6r6+BUFIIsTY9Fl/7boUi+SwZPwMQX

Malware Config

Signatures

  • 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
  • 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 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0fcb11da7d754a1b319faf849157d1088e81c1c232a57ad1d995824ec223c2ba.exe
    "C:\Users\Admin\AppData\Local\Temp\0fcb11da7d754a1b319faf849157d1088e81c1c232a57ad1d995824ec223c2ba.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:2080
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2080 -s 832
      2⤵
      • Loads dropped DLL
      • Program crash
      PID:3932
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2080 -s 840
      2⤵
      • Loads dropped DLL
      • Program crash
      PID:2152
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2080 -ip 2080
    1⤵
    • Loads dropped DLL
    PID:632
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 2080 -ip 2080
    1⤵
    • Loads dropped DLL
    PID:368

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/2080-4-0x0000000010000000-0x0000000010030000-memory.dmp

          Filesize

          192KB

        • memory/2080-6-0x00000000007C1000-0x00000000007C2000-memory.dmp

          Filesize

          4KB

        • memory/2080-15-0x00000000007C0000-0x0000000000A68000-memory.dmp

          Filesize

          2.7MB

        • memory/2080-17-0x0000000010000000-0x0000000010030000-memory.dmp

          Filesize

          192KB