Analysis

  • max time kernel
    118s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    16-09-2024 19:49

General

  • Target

    version.dll

  • Size

    1.0MB

  • MD5

    4b7ea4719e10a326a3a83233ecd952dd

  • SHA1

    18ac98c6780f2740b3462b2232f7de734a933682

  • SHA256

    a37db4499f839088a50d0d88bb5af644462202c8ea4581ca7750ed502e1b1e0d

  • SHA512

    31cefbb4e1d77bfb9cc25346bfde1c0d2dd38d0b529fb0a633789e964258bab14da84d7c06ab53a7063fd05bb34637db181598880c72fa372400b828f59903ef

  • SSDEEP

    12288:Qxzy52sk14W7fncGkiipuuDx6h0QrH6s6iEN6GGvulmc3MkpBjvrEH72M:esk14W7pP7H6s6iEMrkrEH72M

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 WriteProcessMemory 7 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\version.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2524
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\version.dll,#1
      2⤵
      • Loads dropped DLL
      • Drops file in Program Files directory
      • System Location Discovery: System Language Discovery
      PID:2392

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/2392-3-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/2392-6-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/2392-4-0x0000000074BD0000-0x0000000074CCD000-memory.dmp

    Filesize

    1012KB