Malicious PDF — malware analysis report

Static analysis result for SHA-256 97747f134f3b3eca…

MALICIOUS

PDF

84.9 KB Created: 2021-07-05 22:47:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 645a506f89afcd1315f7916ac5c25827 SHA-1: b5d91c0d228bf105791ccbd6b91621e1a130c80c SHA-256: 97747f134f3b3ecafe1bbcb5f973291fc75f7ef02499e1887320d77473c836a9
122 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains heuristics indicating it links to a malicious redirector disguised as a game hack generator. The embedded URL, http://netcdn.tw/app/1094591345/pokemon-go-free-coins-android-game-hack, is flagged as malicious. This suggests the document's primary purpose is to lure users to a potentially harmful site, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier clean score 0.0141

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/pokemon-go-free-coins-android-game-hack In PDF document text

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