General

  • Target

    https://ezfn-dev.pages.dev/EzFN-Manager.exe

  • Sample

    241129-vvncvsskbp

Malware Config

Extracted

Family

skuld

C2

https://discord.com/api/webhooks/1311796799056642069/DZAARj1m1s41Duw_NVm0R1WEiCCmxLSz958Og9J2EkacrXip7sOXmhO-dXGo69BwUPS3

Extracted

Family

xworm

Version

5.0

C2

koop3490-49895.portmap.host:49895

Mutex

En5bnFe6Zj6gHTS9

Attributes
  • Install_directory

    %ProgramData%

  • install_file

    WinRar.exe

aes.plain

Targets

    • Target

      https://ezfn-dev.pages.dev/EzFN-Manager.exe

    • Detect Xworm Payload

    • Skuld family

    • Skuld stealer

      An info stealer written in Go lang.

    • Xworm

      Xworm is a remote access trojan written in C#.

    • Xworm family

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    • Downloads MZ/PE file

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

    • Enumerates connected drives

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

    • Looks up external IP address via web service

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

    • Mark of the Web detected: This indicates that the page was originally saved or cloned.

    • Network Share Discovery

      Attempt to gather information on host network.

    • Suspicious use of SetThreadContext

    • UPX packed file

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

MITRE ATT&CK Enterprise v15

Tasks