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 17:25

General

  • Target

    2d7bb43807d1d6c6d92fef62762a1070N.dll

  • Size

    955KB

  • MD5

    2d7bb43807d1d6c6d92fef62762a1070

  • SHA1

    05984409b36fe97343aeb8d7f728edd4ca90b8d4

  • SHA256

    c9587995f4b069f1efc68801c1c2bf1dfa0a7845604baa62b5b60cf011652d9b

  • SHA512

    ef6e3424cd4e8b5ebc9a6f0f721f50423c2f03afe8e2dc7068250431f84a4293cab45aa567ca93ffd73c2ceac8c3c9b276f17cfdfa92b3bcb09fa2e78fe57f60

  • SSDEEP

    24576:wr37G4Tr6/L4rCvwHIo2WEyMz7yYK6ZSmd9saBpAnVFpMrEH7S:wy0rCvPxzvbsIUFG

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
  • 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 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.

  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\2d7bb43807d1d6c6d92fef62762a1070N.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1908
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\2d7bb43807d1d6c6d92fef62762a1070N.dll,#1
      2⤵
      • Loads dropped DLL
      • Drops file in Program Files directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2648
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2648 -s 280
        3⤵
        • Program crash
        PID:1568

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/2648-3-0x0000000000130000-0x0000000000160000-memory.dmp

    Filesize

    192KB

  • memory/2648-7-0x0000000000130000-0x0000000000160000-memory.dmp

    Filesize

    192KB

  • memory/2648-5-0x0000000010000000-0x00000000100DF000-memory.dmp

    Filesize

    892KB