Malicious PDF — malware analysis report

Static analysis result for SHA-256 c951ad847f56b9b6…

MALICIOUS

PDF

96.0 KB Created: 2021-07-06 01:12:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-31
MD5: 9c7909985047d538ef59e26cb8ab3c86 SHA-1: 0e197278f6326cbd69a4f418b4939634ab1c0192 SHA-256: c951ad847f56b9b6f43fbb28e61cf093093690da75cb73e7947fb557456abc65
122 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a link that redirects to a known malicious domain, masquerading as a game hack generator. This indicates a phishing or social engineering attempt to lure users to malicious infrastructure. No scripts were extracted, but the presence of embedded URLs and the lure suggest a phishing attack.

Machine Learning

  • Nyx PDF Classifier clean score 0.0139

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 http://netcdn.tw/app/1330123889/pubg-uc-olx-game-hack In PDF document text

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