Analysis

  • max time kernel
    94s
  • max time network
    96s
  • 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 23:45

General

  • Target

    18ba73803264791d2e6c48bc737f54b0N.dll

  • Size

    1.2MB

  • MD5

    18ba73803264791d2e6c48bc737f54b0

  • SHA1

    98eecdf8063021ac552399124729a2036c68c345

  • SHA256

    105793ef235b804ec94c3986571c7ace566a07df599da3f3923eeaee7bcb71f3

  • SHA512

    f12f21d9438a49efd17fe6ef2974bd9c27f985ab5ba42f96a87a6b7c4cc9924e50694f957c09291ff1c9e7aa1421fe744cd88a4fc6608bfdf221e78dc44ac94b

  • SSDEEP

    24576:LF3HV0rHRLfmjHprvHfVg9lDT4Y1LYZVze/kj9Gd6CT1vDd6CT1v1+6H+60rEH7R:LF3HV0rHRLfmjHprvHfVg9x4YFYZek0l

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\18ba73803264791d2e6c48bc737f54b0N.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1672
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\18ba73803264791d2e6c48bc737f54b0N.dll,#1
      2⤵
      • Loads dropped DLL
      • Drops file in Program Files directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      PID:4604

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/4604-2-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/4604-5-0x00000000750A1000-0x00000000750A2000-memory.dmp

    Filesize

    4KB

  • memory/4604-6-0x00000000750A0000-0x00000000751C1000-memory.dmp

    Filesize

    1.1MB

  • memory/4604-8-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB