General

  • Target
    HG7dj4_Receipt.zip
  • Size 61KB
  • Sample241026-netrdatdnc
  • SHA256 5acd33e1e58647897cd7897305eec80d6c9228ec2fce8f972825b48ea16a8c74
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • xworm

Version
  • 3.1

C2
  • xwor3july.duckdns.org:9402

Mutex
  • JIs7HXfvmVwG8wtR

Attributes
  • install_file

    USB.exe

aes.plain

Targets

    • Target
      c56D7_Receipt.vbs
    • Size 130KB
    • SHA256 30c4d81a0075e27984f768fa73c43240f5b14724a84a5057c15c99114b4aac15
    • MD5 SHA1 SHA512 SSDEEP
    • Detect Xworm Payload

    • Guloader family

    • Guloader,Cloudeye

      A shellcode based downloader first seen in 2020.

    • Xworm

      Xworm is a remote access trojan written in C#.

    • Xworm family

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

    • Drops file in System32 directory

    • Suspicious use of NtCreateThreadExHideFromDebugger

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks