Extracted

• • Target

    Runtime Broker.exe

  • Size

    72KB

  • MD5

    89af2aaffc3ddda07a0fc977c8bb2236

  • SHA1

    412bd5812599d5729a51d0350df48030b0d04e1a

  • SHA256

    637aff987be6ea158b7182de9de5de0054407077511019516270d82a6f2e9b69

  • SHA512

    8c2b26d0f1b0ae80149a2aaadef329ab7fb3495bdfbccb7f8ff60368094cd955829b2cb1217b16808ac41a223661d48c2dcf88d3daeddc6b699aa88272be75ae

  • SSDEEP

    1536:b0nLpERHZ5P56srqpbTXw3cYUo6IfI4WOyL6KqGi:bcY7P56tbTXb6IvOyyGi

  Score

  10^/10

  xwormrattrojanstormkittyevasionexecutionpersistenceprivilege_escalationransomwarespywarestealer

  • 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

  • Modifies Windows Defender Real-time Protection settings

    evasiontrojan

  • StormKitty

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

    stealerstormkitty

  • StormKitty payload

  • Suspicious use of NtCreateUserProcessOtherParentProcess

  • UAC bypass

    evasiontrojan

  • Xworm

    Xworm is a remote access trojan written in C#.

    trojanratxworm

  • Boot or Logon Autostart Execution: Active Setup

    Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

    persistence

  • Command and Scripting Interpreter: PowerShell

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

    execution

  • Disables Task Manager via registry modification

    evasion

  • Modifies Windows Firewall

    evasion

  • Checks computer location settings

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

  • Drops startup file

  • Executes dropped EXE

  • Loads dropped DLL

  • Reads user/profile data of web browsers

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

    spywarestealer

  • Uses the VBS compiler for execution

  • Adds Run key to start application

    persistence

  • Drops desktop.ini file(s)

  • Enumerates connected drives

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

  • Looks up external IP address via web service

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

  • Sets desktop wallpaper using registry

    ransomware
  behavioral1behavioral2