Malicious PDF — malware analysis report

Static analysis result for SHA-256 bade34fc757b93cb…

MALICIOUS

PDF

65.6 KB Created: 2021-07-06 16:57:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 4cd487ee9b6a41f3d0546625360e23d8 SHA-1: 7d4a0472abb3611897792d006cbffb6770f58af6 SHA-256: bade34fc757b93cbf4a0196650a732fdfeaeee64c429dadf6d7608409d770de5
122 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to a redirector infrastructure, specifically advertising a 'free generator / game hack' for PUBG. This lure is designed to entice users to click through to potentially malicious content. No scripts were extracted from this sample, but the embedded URLs are highly suspicious and indicative of a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier clean score 0.0438

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-2021-game-hack In PDF document text

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