Analysis

  • max time kernel
    117s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    15-08-2024 17:39

General

  • Target

    b778d988c1488f76d50f8ff1cd1bf1a0N.dll

  • Size

    239KB

  • MD5

    b778d988c1488f76d50f8ff1cd1bf1a0

  • SHA1

    f077bebd347155e9ec5597a4a935ddf19534e37c

  • SHA256

    46951b0b1862936557aa8b0154ad81485eb20b60ff694568ff94f03009d2dc05

  • SHA512

    e5e165423b4f2858e97bb44ffcc0d5cbcd62880ff31bd1c92699bd2ecb3a8f9995fb0200cdf82fedf90cc3c8bbf6108a06699b208c36d83f2b9ccba99578e0ea

  • SSDEEP

    3072:i+W9sQxFt0A3Yx09SQ9N4PXbHcnzZzzZvPn2lQBV+UdE+rECWp7hK5uQ:jW7Vr3sIVNVN35LBV+UdvrEFp7hK1

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
  • Modifies system executable filetype association 2 TTPs 4 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 17 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Windows\system32\regsvr32.exe
    regsvr32 /s C:\Users\Admin\AppData\Local\Temp\b778d988c1488f76d50f8ff1cd1bf1a0N.dll
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2624
    • C:\Windows\SysWOW64\regsvr32.exe
      /s C:\Users\Admin\AppData\Local\Temp\b778d988c1488f76d50f8ff1cd1bf1a0N.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
      • Suspicious use of AdjustPrivilegeToken
      PID:2076

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • \Program Files\Common Files\System\symsrv.dll

    Filesize

    67KB

    MD5

    7574cf2c64f35161ab1292e2f532aabf

    SHA1

    14ba3fa927a06224dfe587014299e834def4644f

    SHA256

    de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

    SHA512

    4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

  • memory/2076-3-0x0000000000260000-0x0000000000290000-memory.dmp

    Filesize

    192KB

  • memory/2076-5-0x0000000000260000-0x0000000000290000-memory.dmp

    Filesize

    192KB