Analysis

  • max time kernel
    99s
  • max time network
    121s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16-08-2024 01:24

General

  • Target

    02507669f1e19b8d189b41c37d6eabd0N.dll

  • Size

    301KB

  • MD5

    02507669f1e19b8d189b41c37d6eabd0

  • SHA1

    6b3d6cb6704190c3206369507313a12fbae85a76

  • SHA256

    778541a97e25815320658acbdc64abfe8904bb51ceaa90e49c044b48c925f017

  • SHA512

    50a3f87a7245039b291e59b58a0bff1e0247d1b1461720a69d8de9a134687c5aef22c00f0ae2b813f0794c1f75ab0ab5ed10cbdce8f7c06ab4987c83dee6e6ba

  • SSDEEP

    6144:ZIIII396mCObwFd8nhbr9+3Ig5wqRbOwHO4BV+UdvrEFp7hKC93:pCObwDQT+4g5wmu4BjvrEH7393

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 2 IoCs
  • Modifies system executable filetype association 2 TTPs 3 IoCs
  • UPX packed file 3 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Drops file in Program Files directory 1 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.

  • Modifies registry class 38 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Windows\system32\regsvr32.exe
    regsvr32 /s C:\Users\Admin\AppData\Local\Temp\02507669f1e19b8d189b41c37d6eabd0N.dll
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2228
    • C:\Windows\SysWOW64\regsvr32.exe
      /s C:\Users\Admin\AppData\Local\Temp\02507669f1e19b8d189b41c37d6eabd0N.dll
      2⤵
      • Loads dropped DLL
      • Modifies system executable filetype association
      • Drops file in Program Files directory
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      PID:2064

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/2064-5-0x0000000002670000-0x00000000026A0000-memory.dmp

    Filesize

    192KB

  • memory/2064-4-0x0000000002670000-0x00000000026A0000-memory.dmp

    Filesize

    192KB

  • memory/2064-8-0x000000001000C000-0x000000001000D000-memory.dmp

    Filesize

    4KB

  • memory/2064-9-0x0000000010000000-0x000000001004B000-memory.dmp

    Filesize

    300KB

  • memory/2064-11-0x0000000002670000-0x00000000026A0000-memory.dmp

    Filesize

    192KB