Analysis

  • max time kernel
    149s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16/08/2024, 15:00

General

  • Target
    202408168253f93383302d46e0fcdd26f5f7617ffloxifmagniber.exe
  • Size 1.8MB
  • Sample240816-sdlftsvcrr
  • SHA256 170ff17f7874c763fd354377bfdf369b551122324fb361a80a8c4f0f4b6cadfd
  • MD5 SHA1 SHA512 SSDEEP

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 7 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.

  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

  • 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 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\202408168253f93383302d46e0fcdd26f5f7617ffloxifmagniber.exe
    "C:\Users\Admin\AppData\Local\Temp\202408168253f93383302d46e0fcdd26f5f7617ffloxifmagniber.exe"
    1⤵
    • Loads dropped DLL
    • Enumerates connected drives
    • Writes to the Master Boot Record (MBR)
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:1604

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        symsrv.dll

        • Path C:\Program Files\Common Files\System\symsrv.dll
        • Size 67KB
        • SHA256 de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085
        • MD5 SHA1 SHA512 SSDEEP

        symsrv.dll.000

        • Path C:\Program Files\Common Files\System\symsrv.dll.000
        • Size 175B
        • SHA256 eba08cc8182f379392a97f542b350ea0dbbe5e4009472f35af20e3d857eafdf1
        • MD5 SHA1 SHA512

        memory/1604-4-0x0000000010000000-0x0000000010030000-memory.dmp

        memory/1604-14-0x0000000010000000-0x0000000010030000-memory.dmp

        memory/1604-15-0x0000000010000000-0x0000000010030000-memory.dmp

        memory/1604-13-0x0000000000B80000-0x0000000000D36000-memory.dmp

        memory/1604-21-0x0000000010000000-0x0000000010030000-memory.dmp

        memory/1604-27-0x0000000010000000-0x0000000010030000-memory.dmp

        memory/1604-39-0x0000000010000000-0x0000000010030000-memory.dmp