General

  • Target

    Fulloption_V2.1.exe

  • Size

    4.2MB

  • Sample

    241120-lkw3kszkcl

  • MD5

    9f53cc8bc6cb459cb3c5ccc0d54812d6

  • SHA1

    f18cda32845d3daecf694457a92f614931695c50

  • SHA256

    aa1a013b0b9dba1edcac0096c8bd847cf50126cc719e5ec8e1d7311ef37b97f8

  • SHA512

    0047d8a7035148466f6b52ff7c9ea85d72075bbcda891192aedef0e2c2a18e1f90697cef7b5f5558a973e5214d754b483da2f35331974a521f7dbab5391c562a

  • SSDEEP

    98304:0er3mJdJ0Gz+yQ3zkgHC3lD1qhPEeXkZGRaGxOJx1/qV:JSJdJrz+yOkg8BQPfXYoI1q

Malware Config

Extracted

Family

xworm

C2

45.141.27.248:7777

Attributes
  • Install_directory

    %ProgramData%

  • install_file

    svchost.exe

Targets

    • Target

      Fulloption_V2.1.exe

    • Size

      4.2MB

    • MD5

      9f53cc8bc6cb459cb3c5ccc0d54812d6

    • SHA1

      f18cda32845d3daecf694457a92f614931695c50

    • SHA256

      aa1a013b0b9dba1edcac0096c8bd847cf50126cc719e5ec8e1d7311ef37b97f8

    • SHA512

      0047d8a7035148466f6b52ff7c9ea85d72075bbcda891192aedef0e2c2a18e1f90697cef7b5f5558a973e5214d754b483da2f35331974a521f7dbab5391c562a

    • SSDEEP

      98304:0er3mJdJ0Gz+yQ3zkgHC3lD1qhPEeXkZGRaGxOJx1/qV:JSJdJrz+yOkg8BQPfXYoI1q

    • Detect Xworm Payload

    • Xworm

      Xworm is a remote access trojan written in C#.

    • Xworm family

    • 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.

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

    • 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