General

  • Target
    f4c7199f32adb8b52899118d978c94c6d5db308782222cd27f70ca56c8435dbc.bin
  • Size 2.9MB
  • Sample260810-bnt3aasvgy
  • SHA256 f4c7199f32adb8b52899118d978c94c6d5db308782222cd27f70ca56c8435dbc
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • xworm

Version
  • 5.0

C2
  • byyLix-33423.portmap.host:33423

Mutex
  • D3VW1ssOCCidVG83

Attributes
  • Install_directory

    %AppData%

  • install_file

    Microsoft Edge.exe

aes.plain

Targets

    • Target
      f4c7199f32adb8b52899118d978c94c6d5db308782222cd27f70ca56c8435dbc.bin
    • Size 2.9MB
    • SHA256 f4c7199f32adb8b52899118d978c94c6d5db308782222cd27f70ca56c8435dbc
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Detect Xworm Payload

    • Family: Xworm

      Xworm is a remote access trojan written in C#.

    • Command and Scripting Interpreter: PowerShell

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

    • Checks computer location settings

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

    • Creates a file in the Startup directory

      A file was written to a Windows startup folder. Files in these directories are executed automatically when a user logs on or an application initializes.

    • Executes dropped EXE

    • Reads user/profile data of web browsers

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

    • Adds Run key to start application

    • Contacts third-party web service commonly abused for C2

      Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.

MITRE ATT&CK Enterprise v16

Tasks