Malicious PDF — malware analysis report

Static analysis result for SHA-256 9809bab18dbd1e41…

MALICIOUS

PDF

105.1 KB Created: 2021-07-05 08:40:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 044549c94c722227b58bd2a76f6b1c8e SHA-1: f882d81144fb205c5440e08e1d60bf7d696ba009 SHA-256: 9809bab18dbd1e417d4adff8f7aa865b77f53df94c09bb4e8245ad96c8e77a1e
122 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF file contains multiple links to a known malicious redirector, masquerading as a 'free generator' or 'game hack' for PUBG. This lure is designed to entice users to click the link, leading them to potentially harmful infrastructure. The file's structure and embedded URLs strongly suggest a phishing or social engineering attack aimed at redirecting users to malicious content.

Machine Learning

  • Nyx PDF Classifier clean score 0.0126

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/pubg-uc-free-app-game-hack In PDF document text