Analysis

  • max time kernel
    119s
  • max time network
    17s
  • platform
    windows7_x64
  • resource
    win7-20240705-en
  • resource tags

    arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
  • submitted
    16-08-2024 19:04

General

  • Target

    23d9aadb8891226d9a64e4921ceb2250N.dll

  • Size

    1.2MB

  • MD5

    23d9aadb8891226d9a64e4921ceb2250

  • SHA1

    9165a200d1ae9c62ed51e2cfe6e72a00d4ba1e8a

  • SHA256

    8a159de8fbe38ed86acbf467169f8550d1c0012008c0f13a926f7aaf66377cce

  • SHA512

    d0c6479459a0dc582a7deffbe390b38fca32020de08ed28f4333d12eed0b2f22916450c446e0432baa122f8593cfcefc46c64d253d1a1106d39f5e9195c88c36

  • SSDEEP

    24576:LF3HV0rHRLfmjHprvHfVg9IDT4Y1WYZVzezkj9Gd6CT1vDd6CT1v1+6H+60rEH78:LF3HV0rHRLfmjHprvHfVg9U4YgYZik0Y

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\23d9aadb8891226d9a64e4921ceb2250N.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2124
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\23d9aadb8891226d9a64e4921ceb2250N.dll,#1
      2⤵
      • Loads dropped DLL
      • Drops file in Program Files directory
      • System Location Discovery: System Language Discovery
      PID:1428

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/1428-3-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/1428-4-0x0000000074B91000-0x0000000074B92000-memory.dmp

    Filesize

    4KB

  • memory/1428-6-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB