Analysis

  • max time kernel
    121s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    05-09-2024 12:35

General

  • Target

    2024-09-05_b19c0ffd7010f0895b5db0dee838ce1d_bkransomware_floxif.exe

  • Size

    2.1MB

  • MD5

    b19c0ffd7010f0895b5db0dee838ce1d

  • SHA1

    8ba0d27dd24cc0c65673453b12a7b8f471c8920e

  • SHA256

    b989196a6f6166a30bc3df0ee3f7bf61bd3afcba193ceafbd16c5ac45b5f3609

  • SHA512

    7068d717e4f1cc12f0601bfce27b86f0a932ecc854a958d342f1344e9a47867a525bb9813d31866c4acb1e7d725861adc673a49736268bd7bc377c4fded5b9fb

  • SSDEEP

    49152:/ofqq2msxBMfSxRio/D4aQGJ6+Y59N2153kqPk4utu+NNAVw6rPYA:gCq2R3MfSxN/M9GJrYx2r3vPk4utCVZ

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.

  • Enumerates connected drives 3 TTPs 1 IoCs

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

  • 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 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-09-05_b19c0ffd7010f0895b5db0dee838ce1d_bkransomware_floxif.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-05_b19c0ffd7010f0895b5db0dee838ce1d_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:3052

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    67KB

    MD5

    7574cf2c64f35161ab1292e2f532aabf

    SHA1

    14ba3fa927a06224dfe587014299e834def4644f

    SHA256

    de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

    SHA512

    4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

  • memory/3052-3-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/3052-12-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/3052-10-0x0000000000FE0000-0x00000000011F5000-memory.dmp

    Filesize

    2.1MB