Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d49de7964653aa4…

MALICIOUS

PDF

178.0 KB Created: 2021-07-06 06:05:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-23
MD5: bf72011e947a547ddbff86d368bd5325 SHA-1: d68ec64074cf2b804f2b345a8f60a64888a522ce SHA-256: 2d49de7964653aa43fbb44699b9b76f779ed8246d4610efbc7d2067b80fd0080
122 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains embedded links that redirect to a website offering 'free generator / game hack' for PUBG. This is a common lure to entice users to visit potentially malicious infrastructure. The heuristic firings indicate the PDF is designed to redirect users to known malicious sites, and the embedded URL confirms this redirection attempt. No scripts were extracted from this sample.

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/1330123889/pubg-uc-and-bc-game-hack In PDF document text

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