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Analysis

  • max time kernel
    93s
  • max time network
    96s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22/12/2024, 12:20

General

  • Target

    b5c6cd4c00fbb69af999357ff7d60b59dfe41c3a8d1693e4d510aa8e80b4d041N.exe

  • Size

    388KB

  • MD5

    3357c54a4c9f955567bc4bb0c33e7a70

  • SHA1

    f10b6f663d52f8155f4b769345119f18108e0a20

  • SHA256

    b5c6cd4c00fbb69af999357ff7d60b59dfe41c3a8d1693e4d510aa8e80b4d041

  • SHA512

    ac76f33a1309e9ffa58e8d86a16cb61f5fda7ec6d307cfbb7461280073311ec3bb324e551b88ceef7f193b45b4b5e59bd9536e3654610da731551da3e5cb0fa2

  • SSDEEP

    12288:L20EArNwynjqy0ualH1kyI9Fh7MBjvrEH7w:L20tN5njqy0blH1kyInh7mrEH7w

Malware Config

Signatures

  • Floxif family
  • 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
  • Enumerates connected drives 3 TTPs 1 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • UPX packed file 3 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Drops file in Program Files directory 2 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 behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b5c6cd4c00fbb69af999357ff7d60b59dfe41c3a8d1693e4d510aa8e80b4d041N.exe
    "C:\Users\Admin\AppData\Local\Temp\b5c6cd4c00fbb69af999357ff7d60b59dfe41c3a8d1693e4d510aa8e80b4d041N.exe"
    1⤵
    • Loads dropped DLL
    • Enumerates connected drives
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:2424

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/2424-4-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/2424-6-0x0000000000406000-0x0000000000409000-memory.dmp

    Filesize

    12KB

  • memory/2424-12-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/2424-16-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/2424-15-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB