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Analysis

  • max time kernel
    92s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24/12/2024, 06:41

General

  • Target

    30713c9db29f1185d482eb9c5491dc7d68dbf8de20477e6ac866e8e8b3d87244.exe

  • Size

    4.7MB

  • MD5

    e93e4f22d9afe1f1ade66d636f25c380

  • SHA1

    1ab854cdb1c237be7fbe5a6230273414117fde2a

  • SHA256

    30713c9db29f1185d482eb9c5491dc7d68dbf8de20477e6ac866e8e8b3d87244

  • SHA512

    2dba62e5e9d9971b85ab169a97aa18846a57a4dd69dcddff67c80ca785dd34bc2a40a30b2b31943a3ca289692e9306e94793e2a22a9d8debb98211f36ca88517

  • SSDEEP

    98304:Q0WXxnoJ2Pn/Y4MpMCkGoY9yY9F0GFvNIDc09EzcLRmOCZ:QD6yn/YHroY9yY9ewvNvgx4

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 5 IoCs

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

  • Drops file in Program Files directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • 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.

  • Modifies registry class 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\30713c9db29f1185d482eb9c5491dc7d68dbf8de20477e6ac866e8e8b3d87244.exe
    "C:\Users\Admin\AppData\Local\Temp\30713c9db29f1185d482eb9c5491dc7d68dbf8de20477e6ac866e8e8b3d87244.exe"
    1⤵
    • Loads dropped DLL
    • Enumerates connected drives
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:3144
  • C:\Windows\System32\rundll32.exe
    C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
    1⤵
      PID:1620

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      Filesize

      67KB

      MD5

      7574cf2c64f35161ab1292e2f532aabf

      SHA1

      14ba3fa927a06224dfe587014299e834def4644f

      SHA256

      de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

      SHA512

      4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

    • memory/3144-2-0x0000000010000000-0x0000000010030000-memory.dmp

      Filesize

      192KB

    • memory/3144-5-0x0000000000450000-0x0000000000453000-memory.dmp

      Filesize

      12KB

    • memory/3144-13-0x0000000000400000-0x0000000000488000-memory.dmp

      Filesize

      544KB

    • memory/3144-16-0x0000000000400000-0x0000000000488000-memory.dmp

      Filesize

      544KB

    • memory/3144-17-0x0000000010000000-0x0000000010030000-memory.dmp

      Filesize

      192KB

    • memory/3144-18-0x0000000010000000-0x0000000010030000-memory.dmp

      Filesize

      192KB

    • memory/3144-19-0x0000000000400000-0x0000000000488000-memory.dmp

      Filesize

      544KB

    • memory/3144-41-0x0000000000400000-0x0000000000488000-memory.dmp

      Filesize

      544KB

    • memory/3144-40-0x0000000010000000-0x0000000010030000-memory.dmp

      Filesize

      192KB