General

  • Target
    XClient.exe
  • Size 30KB
  • Sample261107-t8984set5n
  • SHA256 e6277877b5970a79b5f7e90ee9fd3dd2e93fa3e85223f58d1c15602d62de6385
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • xworm

Version
  • 3.1

C2
  • FeloPateer881-63375.portmap.host:63375

Mutex
  • 3jz9pAY4YBCzZrsA

Attributes
  • install_file

    USB.exe

aes.plain

Targets

    • Target
      XClient.exe
    • Size 30KB
    • SHA256 e6277877b5970a79b5f7e90ee9fd3dd2e93fa3e85223f58d1c15602d62de6385
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Contains code to disable Windows Defender

      A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

    • Detect Xworm Payload

    • Family: Xworm

      Xworm is a remote access trojan written in C#.

    • Boot or Logon Autostart Execution: Active Setup

      Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

    • Modifies Windows Firewall

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Loads dropped DLL

    • Drops desktop.ini file(s)

    • Enumerates connected drives

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

    • Sets desktop wallpaper using registry

MITRE ATT&CK Enterprise v16

Tasks