Resubmissions

02-11-2024 13:51

241102-q5sccavqet 10

02-11-2024 13:48

241102-q4gjfswdmj 10

Analysis

  • max time kernel
    7s
  • max time network
    7s
  • platform
    windows10-ltsc 2021_x64
  • resource
    win10ltsc2021-20241023-en
  • resource tags

    arch:x64arch:x86image:win10ltsc2021-20241023-enlocale:en-usos:windows10-ltsc 2021-x64system
  • submitted
    02-11-2024 13:48

General

  • Target

    knockdown.exe

  • Size

    38KB

  • MD5

    9b571882a40ac5ff15a5b58dc428164e

  • SHA1

    dbc149eeabd1aa7abd409a7ca20dd61009c99b01

  • SHA256

    a198b0780c41e0ebac9a8873eebcf790c547477f7dafa31d0252b0fe9fa33747

  • SHA512

    bb1b7027c5a33607d806ff872d68798e9acdbfb733b5d8c8784c4720c94e028fbadf183f7f5e3600e211d723e8b642897c3bfb64eed3ab7f09e133d364a6b686

  • SSDEEP

    768:98ZRI2y2Jjnfc5NiJZoB7FWPA9pJDOMh/jP:98Zdyajxi9FR9plOMtb

Malware Config

Extracted

Family

xworm

Version

5.0

C2

127.0.0.1:7000

Mutex

OT8rL3nGHhHEZTlT

Attributes
  • Install_directory

    %AppData%

  • install_file

    XClient.exe

aes.plain

Signatures

  • Detect Xworm Payload 1 IoCs
  • Xworm

    Xworm is a remote access trojan written in C#.

  • Xworm family
  • Drops startup file 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\knockdown.exe
    "C:\Users\Admin\AppData\Local\Temp\knockdown.exe"
    1⤵
    • Drops startup file
    • Adds Run key to start application
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    PID:1048

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1048-0-0x00007FFDC0F93000-0x00007FFDC0F95000-memory.dmp

    Filesize

    8KB

  • memory/1048-1-0x00000000000F0000-0x0000000000100000-memory.dmp

    Filesize

    64KB

  • memory/1048-6-0x00007FFDC0F90000-0x00007FFDC1A52000-memory.dmp

    Filesize

    10.8MB