Malicious PDF — malware analysis report

Static analysis result for SHA-256 f638bc855f024cfe…

MALICIOUS

PDF

6.6 KB Created: 2021-06-03 22:03:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: c68aad9aec40fb44045e46544015187c SHA-1: b6b507fd3345c71414d401d7e0705aab536ff902 SHA-256: f638bc855f024cfe990febd1ef27c01f0b8e1b97402f44940cd9a87237573c94
74 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a lure promising free Robux and no human verification, which is a common tactic for phishing or malware distribution. It links to a suspicious URL that likely hosts a malicious payload or redirects to a phishing site. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9906

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/431946152/how-to-get-free-robux-2021-no-human-verification-game-hack PDF link annotation