Malicious PDF — malware analysis report

Static analysis result for SHA-256 bf679c2ab851dc9a…

MALICIOUS

PDF

9.7 KB Created: 2021-06-03 10:08:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 789799e84e2e7d49c238c3564d9b6457 SHA-1: 42128f84c3fe83071f3829c6dea3dc412302cd66 SHA-256: bf679c2ab851dc9ad948fe1bbf570e15d1b561a11e6f33a6fbb7d654dd45911d
74 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF file contains a link that promises a game hack, a common lure for phishing and malware distribution. The link redirects to a suspicious URL, and a machine learning classifier flagged the PDF as malicious. The document's content and the embedded URI heuristic strongly suggest an attempt to trick the user into visiting a potentially harmful site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9104

Heuristics 3

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://netcdn.online/app/406889139/card-hack-in-coin-master-game-hack PDF link annotation