Malicious PDF — malware analysis report

Static analysis result for SHA-256 3b73f1915036f430…

MALICIOUS

PDF

168.3 KB Created: 2021-07-06 12:43:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-02
MD5: a2064d926730191562a7bdee41cf0f0d SHA-1: 3f9553022c70969b46ddb375a6c2ab19b021163e SHA-256: 3b73f1915036f4309e4b6700138d85a62092fe7c0c355b3c4acb620da50b48d8
122 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a link disguised as a 'free generator / game hack' for Pokemon Go. This link redirects to a known malicious domain, indicating a phishing or scam attempt. No scripts were extracted, but the presence of embedded URLs and the lure text strongly suggest a social engineering attack.

Machine Learning

  • Nyx PDF Classifier clean score 0.0060

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/1094591345/can-pokemon-go-free-account-game-hack In PDF document text

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