Malicious PDF — malware analysis report

Static analysis result for SHA-256 a8fb6abadc543d31…

MALICIOUS

PDF

173.6 KB Created: 2021-07-05 08:17:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-16
MD5: 0bedc74c42d1bdf0445dff1a70156c4a SHA-1: f5c7bbea2bc56e890e9942390b84e0b15785b771 SHA-256: a8fb6abadc543d313b88c6e0521f4a612b767f150257dbf97212d3d6efcd7f80
122 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains links that are identified as malicious redirectors, specifically luring users with the promise of game hacks. These links lead to the URL http://netcdn.tw/app/1094591345/pokemon-go-free-8-bit-sprites-game-hack. The document's structure and embedded links suggest an attempt to trick users into visiting a potentially harmful site, likely for further exploitation or credential harvesting.

Machine Learning

  • Nyx PDF Classifier clean score 0.0064

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-8-bit-sprites-game-hack In PDF document text