Analysis

  • max time kernel
    103s
  • max time network
    103s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15-08-2024 18:17

General

  • Target

    bbd136d97ecea1315a9a2df2e8152890N.dll

  • Size

    1.2MB

  • MD5

    bbd136d97ecea1315a9a2df2e8152890

  • SHA1

    d7de9848eac1313e6647aa342286c8836d87af8e

  • SHA256

    34dff8cd1a839deab082ff25a5bac1d20f991c4ab8868b213b4d3bc9ee561b28

  • SHA512

    4bf396f181926067fa68668b5766291fe4f84b44df9c45810416cfe84b46e444d0bce85ae8825b6770d7de00e6ca6751f164a1562875668f212afd690dca4110

  • SSDEEP

    24576:LF3HV0rHRLfmjHprvHfVg9lDT4Y1WYZVze1kj9Gd6CT1vDd6CT1v1+6H+60rEH7x:LF3HV0rHRLfmjHprvHfVg9x4YgYZYk0F

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
  • 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 3 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\bbd136d97ecea1315a9a2df2e8152890N.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2608
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\bbd136d97ecea1315a9a2df2e8152890N.dll,#1
      2⤵
      • Loads dropped DLL
      • Drops file in Program Files directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      PID:556

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/556-2-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/556-5-0x0000000074951000-0x0000000074952000-memory.dmp

    Filesize

    4KB

  • memory/556-6-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/556-7-0x0000000074950000-0x0000000074A71000-memory.dmp

    Filesize

    1.1MB