General

  • Target
    45ff4bbe10d3e2a0561d19219a4738e2.exe
  • Size 1.2MB
  • Sample240912-kbvbyszarm
  • SHA256 f9adac1ef0311f015cbb89d89b24b47dace93d4fafd417af475b09def8034c3f
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • xworm

C2
  • 147.185.221.22:8888

Attributes
  • Install_directory

    %AppData%

  • install_file

    XClient.exe

Targets

    • Target
      45ff4bbe10d3e2a0561d19219a4738e2.exe
    • Size 1.2MB
    • SHA256 f9adac1ef0311f015cbb89d89b24b47dace93d4fafd417af475b09def8034c3f
    • MD5 SHA1 SHA512 SSDEEP
    • DcRat

      DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.

    • Detect Xworm Payload

    • Process spawned unexpected child process

      This typically indicates the parent process was compromised via an exploit or macro.

    • Xworm

      Xworm is a remote access trojan written in C#.

    • DCRat payload

      Detects payload of DCRat, commonly dropped by NSIS installers.

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Looks up external IP address via web service

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

MITRE ATT&CK Enterprise v15

Tasks