General

  • Target
    Payload.exe
  • Size 55KB
  • Sample261023-vwkncsfs8l
  • SHA256 295b2cfdc547f8748153f1208d23b5437c4888c619ea51a9c86b3f5eec02759b
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • njrat

Version
  • <- NjRAT 0.7d Horror Edition ->

Botnet
  • Victim

C2
  • 32.tcp.cpolar.top:11557

Mutex
  • f6fa43770ecd8680185b99aec36ac92d

Attributes
  • reg_key

    f6fa43770ecd8680185b99aec36ac92d

  • splitter

    Y262SUCZ4UJJ

Targets

    • Target
      Payload.exe
    • Size 55KB
    • SHA256 295b2cfdc547f8748153f1208d23b5437c4888c619ea51a9c86b3f5eec02759b
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Family: njRAT/Bladabindi

      Widely used RAT written in .NET.

    • Boot or Logon Autostart Execution: Active Setup

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

    • Manipulates Digital Signatures

      Attackers can apply techniques such as changing the registry keys of authenticode & Cryptography to make their binary seem validly signed.

    • 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.

    • Event Triggered Execution: Component Object Model Hijacking

      Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.

    • Executes dropped EXE

    • Accesses Microsoft Outlook profiles

    • Adds Run key to start application

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Writes to the Master Boot Record (MBR)

      Bootkits write to the MBR to gain persistence at a level below the operating system.

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v16

Tasks