General

  • Target
    XClient.exe
  • Size 33KB
  • Sample260915-txzy1azdmf
  • SHA256 a7d98b372c82cfbbb3374a4f0cc1c5d77f1e1863d855f3b8db92371aa463184c
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • xworm

Version
  • 5.0

C2
  • portmapper222-61558.portmap.host:61558

Mutex
  • U04iZZ335T2key3q

Attributes
  • install_file

    USB.exe

aes.plain

Targets

    • Target
      XClient.exe
    • Size 33KB
    • SHA256 a7d98b372c82cfbbb3374a4f0cc1c5d77f1e1863d855f3b8db92371aa463184c
    • 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: StormKitty

      StormKitty is an open source info stealer written in C#.

    • Family: Xworm

      Xworm is a remote access trojan written in C#.

    • StormKitty payload

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • Drops desktop.ini file(s)

    • Enumerates connected drives

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

    • Drops file in System32 directory

    • Sets desktop wallpaper using registry

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v16

Tasks