Analysis

  • max time kernel
    94s
  • max time network
    95s
  • platform
    windows11-21h2_x64
  • resource
    win11-20250217-en
  • resource tags

    arch:x64arch:x86image:win11-20250217-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    05/03/2025, 20:16

General

  • Target

    MasonClient.exe

  • Size

    51KB

  • MD5

    267f96e9cd6585f1e6a3c3355dd4f369

  • SHA1

    26320160eebc17cdba76207aba90a86232b499f1

  • SHA256

    1411578fadcbab87b3b8d3d655938bc9cf1fc71768c61708d14167df76b0b32b

  • SHA512

    6e6cb8f26c12347d776d7503177a626d2daa35f93bb5a85db363cdee18c984e9bf59d69fc9d27a3c8b48c3485f5306b1b2201e81961ef3d35dabb0147db39241

  • SSDEEP

    768:Jh6+oFtLVtEEdzq0NZSpC5uFbowl8OK9ax7b4YvPtzD8v9OlrhJO7qpn:JIPZiEdzq0NZUvKoBb4YvP9DpbOKn

Score
10/10

Malware Config

Extracted

Family

xworm

Attributes
  • Install_directory

    %port%

  • install_file

    USB.exe

  • pastebin_url

    https://pastebin.com/raw/knVPJWgB

Signatures

  • Detect Xworm Payload 1 IoCs
  • Xworm

    Xworm is a remote access trojan written in C#.

  • Xworm family
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\MasonClient.exe
    "C:\Users\Admin\AppData\Local\Temp\MasonClient.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:3068

Network

MITRE ATT&CK Matrix

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/3068-1-0x0000000000C80000-0x0000000000C94000-memory.dmp

    Filesize

    80KB

  • memory/3068-0-0x00007FFA67513000-0x00007FFA67515000-memory.dmp

    Filesize

    8KB

  • memory/3068-2-0x00007FFA67510000-0x00007FFA67FD2000-memory.dmp

    Filesize

    10.8MB

  • memory/3068-3-0x00007FFA67510000-0x00007FFA67FD2000-memory.dmp

    Filesize

    10.8MB