General

  • Target
    onafhankelijkeenergievergelijker.nl_nano.exe
  • Size 64KB
  • Sample260908-a2p5taap4x
  • SHA256 c05fa23c4ec1e92f669e169fe1c5eb08ed3852ef91bb863edcd22868eea26a15
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • nanocore

Version
  • 1.2.2.0

C2
  • http://onafhankelijkeenergievergelijker.nl

Mutex
  • ac7e2f05-8df7-4c55-8841-78385f6bb064

Attributes
  • c2_url

    http://onafhankelijkeenergievergelijker.nl

  • version

    1.2.2.0

Targets

    • Target
      onafhankelijkeenergievergelijker.nl_nano.exe
    • Size 64KB
    • SHA256 c05fa23c4ec1e92f669e169fe1c5eb08ed3852ef91bb863edcd22868eea26a15
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Contains code to disable Windows Defender

      A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

    • Family: NanoCore

      NanoCore is a remote access tool (RAT) with a variety of capabilities.

    • Modifies Windows Defender DisableAntiSpyware settings

    • Modifies security service

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

    • Grants admin privileges

      Uses net.exe to modify the user's privileges.

    • Command and Scripting Interpreter: PowerShell

      Run Powershell and hide display window.

    • Disables RegEdit via registry modification

    • Disables Task Manager via registry modification

    • Drops file in Drivers directory

    • Event Triggered Execution: Image File Execution Options Injection

    • Modifies Windows Firewall

    • 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.

    • Disables service(s)

    • Reads user/profile data of web browsers

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

    • Stops running service(s)

    • Adds Run key to start application

    • Creates a new local user account

      Uses net.exe to create a new local user account, often for persistence or a backdoor account.

    • Discovers running processes

      Running process information can be used to identify security tools or plan follow-on actions.

    • Drops file in System32 directory

    • Executes a VBScript file via the Windows Script Host.

    • Sets desktop wallpaper using registry

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Enterprise v16

Tasks