Analysis

  • max time kernel
    93s
  • max time network
    123s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09-09-2024 21:45

General

  • Target

    562597b775c99aaf02c9e8f5adfdcc62b2cb249b4fbb06e4e128a0bd5daa3899.dll

  • Size

    1.0MB

  • MD5

    b91aabe150abd91e053c9596385f79ec

  • SHA1

    469c4b1e8e46942a92282d467988536e81147244

  • SHA256

    562597b775c99aaf02c9e8f5adfdcc62b2cb249b4fbb06e4e128a0bd5daa3899

  • SHA512

    8b3ac36dcaaef1143956b82a5a5f472cef0e42baa35a3be6895a47631fc5d1f74a1d6932716d0bfb200e96d1560d48cca6965041b4dd6e4e78d4bfc7644f4e8e

  • SSDEEP

    12288:Qmzy52sk14W7fnumkiipuuDx6h0QrH6sUgEN6GGvulmcLMkhMRGM4h/qofG:Vsk14W7dP7H6sxEMrYMRGJ/qofG

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 3 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\562597b775c99aaf02c9e8f5adfdcc62b2cb249b4fbb06e4e128a0bd5daa3899.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4204
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\562597b775c99aaf02c9e8f5adfdcc62b2cb249b4fbb06e4e128a0bd5daa3899.dll,#1
      2⤵
      • Loads dropped DLL
      • Drops file in Program Files directory
      • System Location Discovery: System Language Discovery
      PID:1512

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    71KB

    MD5

    4fcd7574537cebec8e75b4e646996643

    SHA1

    efa59bb9050fb656b90d5d40c942fb2a304f2a8b

    SHA256

    8ea3b17e4b783ffc0bc387b81b823bf87af0d57da74541d88ba85314bb232a5d

    SHA512

    7f1a7ef64d332a735db82506b47d84853af870785066d29ccaf4fdeab114079a9f0db400e01ba574776a0d652a248658fe1e8f9659cdced19ad6eea09644ea3e

  • memory/1512-2-0x0000000010000000-0x0000000010033000-memory.dmp

    Filesize

    204KB

  • memory/1512-5-0x000000007495B000-0x000000007495C000-memory.dmp

    Filesize

    4KB

  • memory/1512-8-0x0000000010000000-0x0000000010033000-memory.dmp

    Filesize

    204KB

  • memory/1512-6-0x0000000074950000-0x0000000074A4D000-memory.dmp

    Filesize

    1012KB