Analysis

  • max time kernel
    144s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    02/10/2024, 02:44

General

  • Target

    2024-10-02_8297071232f77f7565cf1fe75643d15a_bkransomware_floxif.exe

  • Size

    3.4MB

  • MD5

    8297071232f77f7565cf1fe75643d15a

  • SHA1

    7dc848d6c2d739a82d11ace798c6ce7d32d50125

  • SHA256

    14d295d290f75fa678f1f2c33289508ac4dcb24e286e9bcb650fa5475436fdb4

  • SHA512

    45f311ec882d1825d7bc752e719e4c472d25ec2c914dbec80ef7d928b0541328949bdbad821dda056230e81396682933fcdaaabab1691749b1ef28d4f1a6af55

  • SSDEEP

    98304:7aAHG4Ah2icXUrTFrE2cIWIpzd5AGFLOAkGkzdnEVomFHKnP7w:+9w+3pzd5AGFLOyomFHKnP7w

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
  • 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 9 IoCs

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

  • Drops file in Program Files directory 2 IoCs
  • Drops file in Windows directory 1 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 3 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-10-02_8297071232f77f7565cf1fe75643d15a_bkransomware_floxif.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-10-02_8297071232f77f7565cf1fe75643d15a_bkransomware_floxif.exe"
    1⤵
    • Loads dropped DLL
    • Enumerates connected drives
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    PID:2480

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Program Files\Common Files\System\symsrv.dll.000

    Filesize

    175B

    MD5

    1130c911bf5db4b8f7cf9b6f4b457623

    SHA1

    48e734c4bc1a8b5399bff4954e54b268bde9d54c

    SHA256

    eba08cc8182f379392a97f542b350ea0dbbe5e4009472f35af20e3d857eafdf1

    SHA512

    94e2511ef2c53494c2aff0960266491ffc0e54e75185427d1ccedae27c286992c754ca94cbb0c9ea36e3f04cd4eb7f032c551cf2d4b309f292906303f1a75fa0

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

    Filesize

    67KB

    MD5

    7574cf2c64f35161ab1292e2f532aabf

    SHA1

    14ba3fa927a06224dfe587014299e834def4644f

    SHA256

    de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

    SHA512

    4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

  • memory/2480-3-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/2480-26-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/2480-25-0x0000000075520000-0x000000007552F000-memory.dmp

    Filesize

    60KB

  • memory/2480-23-0x0000000001240000-0x0000000001594000-memory.dmp

    Filesize

    3.3MB

  • memory/2480-30-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/2480-35-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/2480-40-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/2480-45-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/2480-50-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/2480-68-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB