General

  • Target

    https://www.bing.com/ck/a?!&&p=654ed4847716133eJmltdHM9MTcwODU2MDAwMCZpZ3VpZD0yN2Y0YzU4My04ZjBiLTY3NTktMjIwOC1kNjNlOGVlYjY2MjkmaW5zaWQ9NTIwOQ&ptn=3&ver=2&hsh=3&fclid=27f4c583-8f0b-6759-2208-d63e8eeb6629&psq=worst+windows+10+viruses+still+downloadable&u=a1aHR0cHM6Ly9naXRodWIuY29tL0RhMmRhbHVzL1RoZS1NQUxXQVJFLVJlcG8&ntb=1

  • Sample

    240222-t5lrcach99

Malware Config

Targets

    • Target

      https://www.bing.com/ck/a?!&&p=654ed4847716133eJmltdHM9MTcwODU2MDAwMCZpZ3VpZD0yN2Y0YzU4My04ZjBiLTY3NTktMjIwOC1kNjNlOGVlYjY2MjkmaW5zaWQ9NTIwOQ&ptn=3&ver=2&hsh=3&fclid=27f4c583-8f0b-6759-2208-d63e8eeb6629&psq=worst+windows+10+viruses+still+downloadable&u=a1aHR0cHM6Ly9naXRodWIuY29tL0RhMmRhbHVzL1RoZS1NQUxXQVJFLVJlcG8&ntb=1

    • CryptoLocker

      Ransomware family with multiple variants.

    • Downloads MZ/PE file

    • Drops startup file

    • Executes dropped EXE

    • Adds Run key to start application

    • Legitimate hosting services abused for malware hosting/C2

    • 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 Matrix ATT&CK v13

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

Modify Registry

1
T1112

Discovery

Query Registry

2
T1012

Peripheral Device Discovery

1
T1120

System Information Discovery

2
T1082

Command and Control

Web Service

1
T1102

Tasks