Analysis

  • max time kernel
    94s
  • max time network
    95s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02/09/2024, 12:49

General

  • Target
    c113d33c057164e295b3c3b2f9caf1b0N.exe
  • Size 595KB
  • Sample240902-p2j15a1fjf
  • SHA256 aa3874dd640b90e924c5d8f7c92fa932714e436e688611a4d2e634f58122f918
  • MD5 SHA1 SHA512 SSDEEP

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\c113d33c057164e295b3c3b2f9caf1b0N.exe
    "C:\Users\Admin\AppData\Local\Temp\c113d33c057164e295b3c3b2f9caf1b0N.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    PID:452
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 452 -s 552
      2⤵
      • Program crash
      PID:2852
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 452 -ip 452
    1⤵
      PID:4200

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          symsrv.dll

          • Path C:\Program Files\Common Files\System\symsrv.dll
          • Size 67KB
          • SHA256 de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085
          • MD5 SHA1 SHA512 SSDEEP

          memory/452-4-0x0000000010000000-0x0000000010030000-memory.dmp

          memory/452-8-0x0000000010000000-0x0000000010030000-memory.dmp

          memory/452-6-0x0000000000B00000-0x0000000000D1F000-memory.dmp