Analysis

  • max time kernel
    118s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    03-02-2025 12:36

General

  • Target

    2025-02-03_d1211e3ecf2589d54ed35820b7bae015_bkransomware_floxif.exe

  • Size

    3.5MB

  • MD5

    d1211e3ecf2589d54ed35820b7bae015

  • SHA1

    7030d5eae5efc71fbcc047ff8ae058f1a7ceff9e

  • SHA256

    9c46a8c4aa9f94cb7839ab99b2b4756bc06cfcf512aa3a27931096f9335148eb

  • SHA512

    1048fed9dd026ccc73a771a818ae49bb04f42bd495fa6d5ca5f35bd40248769f499591f3edc6dea8a2e14427060660be7b88bbf1cdf3a56eb53979b724e01f55

  • SSDEEP

    98304:UJtSIsHXa+8y3LuJr7e9Zf15s6GGKdjSFLOAkGkzdnEVomFHKnPgTG:UJ2xHbuJGLGGKdWFLOyomFHKnPg6

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 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2025-02-03_d1211e3ecf2589d54ed35820b7bae015_bkransomware_floxif.exe
    "C:\Users\Admin\AppData\Local\Temp\2025-02-03_d1211e3ecf2589d54ed35820b7bae015_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
    • Suspicious use of SetWindowsHookEx
    PID:2496

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/2496-3-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/2496-12-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/2496-10-0x00000000002C0000-0x000000000063D000-memory.dmp

    Filesize

    3.5MB