Malicious PDF — malware analysis report

Static analysis result for SHA-256 40a1f45e2c9d450e…

MALICIOUS

PDF

169.4 KB Created: 2021-07-05 03:40:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: d08b3f94719a1b28bda1ddb5a7d98e44 SHA-1: a56839c1988ef49559c5a0e8e5735b8296fa59ad SHA-256: 40a1f45e2c9d450e254724e4af7ce3383a3d319bd1c7ce189822ee7e37ff47fc
122 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link disguised as a 'free generator' or 'game hack' for Pokemon Go. This link directs users to a known malicious redirector infrastructure. The primary goal appears to be luring unsuspecting users to potentially malicious websites through social engineering.

Machine Learning

  • Nyx PDF Classifier clean score 0.0058

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-promo-code-game-hack In PDF document text

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