General

  • Target

    https://moonreborn.com/attachments/steal_31.03.24_v2.20.zip

  • Sample

    240411-qsmlbsff4v

Malware Config

Extracted

Family

xworm

Version

3.1

C2

full-wet.at.ply.gg:38848

Attributes
  • Install_directory

    %AppData%

  • install_file

    chrome.exe

Targets

    • Target

      https://moonreborn.com/attachments/steal_31.03.24_v2.20.zip

    • Detect Xworm Payload

    • Xworm

      Xworm is a remote access trojan written in C#.

    • Blocklisted process makes network request

    • Modifies Installed Components in the registry

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

    • Obfuscated with Agile.Net obfuscator

      Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Adds Run key to start application

    • Enumerates connected drives

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

    • Legitimate hosting services abused for malware hosting/C2

    • Looks up external IP address via web service

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

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks