General

  • Target
    $nuker.exe
  • Size 11.3MB
  • Sample260802-jbcw8sfa74
  • SHA256 4f9d17c77bce6244d4fe70f87049044e795c29a26b8744a4eb42b3f9fdb02941
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Targets

    • Target
      $nuker.exe
    • Size 11.3MB
    • SHA256 4f9d17c77bce6244d4fe70f87049044e795c29a26b8744a4eb42b3f9fdb02941
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Family: Exela Stealer

      Exela Stealer is an open source stealer originally written in .NET and later transitioned to Python that was first observed in August 2023.

    • Grants admin privileges

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

    • Modifies Windows Firewall

    • Checks computer location settings

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

    • Clipboard Data

      Adversaries may collect data stored in the clipboard from users copying information within or between applications.

    • 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.

    • Unsecured Credentials: Credentials In Files

      Steal credentials from unsecured files.

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Contacts third-party web service commonly abused for C2

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

    • Looks up external IP address via web service

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

    • Network Service Discovery

      Attempt to gather information on host's network.

    • Obfuscated Files or Information: Command Obfuscation

      Adversaries may obfuscate content during command execution to impede detection.

    • Discovers running processes

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

    • Hide Artifacts: Hidden Files and Directories

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

MITRE ATT&CK Enterprise v16

Tasks