Malicious PDF — malware analysis report

Static analysis result for SHA-256 1b0ff706215f0f6c…

MALICIOUS

PDF

78.1 KB Created: 2021-07-05 19:08:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 11aaec9af9de76abc98746c83baae9c5 SHA-1: 3e1ad3d105039f52ea39324806160d09319df9f3 SHA-256: 1b0ff706215f0f6c3a2b31b3d1816c6f583adfc1b42755d2ba5159096aa2f33e
122 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains embedded links that redirect to a known malicious infrastructure, specifically advertising a 'free generator / game hack'. The document body, though heavily obfuscated, contains references to the same URL. This indicates a phishing or scam attempt designed to lure users to a potentially harmful website.

Machine Learning

  • Nyx PDF Classifier clean score 0.0216

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/how-to-pubg-uc-game-hack In PDF document text

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