Analysis

  • max time kernel
    94s
  • 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
    29-12-2024 13:22

General

  • Target

    2024-12-29_04f0871f4ace19227fd57a9b9d1da26a_bkransomware_floxif.exe

  • Size

    185KB

  • MD5

    04f0871f4ace19227fd57a9b9d1da26a

  • SHA1

    549ae92262d92034c14242626bf0e61bb8011206

  • SHA256

    416b30e501924a04f79d5107c3128e741cbeff15d2a648428b82425ce38d7357

  • SHA512

    77169390631083f67409e50e8caa5bc158f36851bd8daf94389c510e4326fddbca4776795cd7a6ce1e0ed84e0cba2c069674bf015786a35f9b042722d3e1eff1

  • SSDEEP

    3072:ZeGW2y0YDe9kckPac35yW2lQBV+UdE+rECWp7hKyRnx:Z/WU3T9mIcBV+UdvrEFp7hKU

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\2024-12-29_04f0871f4ace19227fd57a9b9d1da26a_bkransomware_floxif.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-12-29_04f0871f4ace19227fd57a9b9d1da26a_bkransomware_floxif.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:764

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/764-3-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/764-12-0x0000000000D40000-0x0000000000D5E000-memory.dmp

    Filesize

    120KB

  • memory/764-14-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB