Malicious PDF — malware analysis report

Static analysis result for SHA-256 963dc7e71d6c08f3…

MALICIOUS

PDF

2.5 KB Created: 2021-05-15 11:11:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-26
MD5: e292785883d53096dc7174512f2ebc33 SHA-1: cb7799a507d3836bf0b75bac35d65b680df9e201 SHA-256: 963dc7e71d6c08f37103f179ddc00fd74cc8f64b9ae715df0043c4f50a303e96
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a critical heuristic firing indicating it links to a malicious redirector disguised as a game hack offer. The embedded URL leads to known malicious infrastructure. While no scripts were extracted, the document's structure and embedded URL strongly suggest a phishing or scam attempt to redirect users to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9740

Heuristics 3

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.xyz/app/431946152/offers-for-robux-game-hack In PDF document text

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