Malicious PDF — malware analysis report

Static analysis result for SHA-256 e629ba47b03835f3…

MALICIOUS

PDF

1.1 KB Created: 2021-07-05 13:05:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-03
MD5: 2b40b9e6ad2c431ba0a7c642bfe90237 SHA-1: 528050bdabef78d65d01e20a0661739a686d273d SHA-256: e629ba47b03835f39b5181d0fb4ced573387f43f2d379a121a869bad0cb13237
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains embedded links that redirect to a "free generator / game hack" lure, identified as malicious redirector infrastructure. The document body explicitly mentions "Coin Master Hack Tool Access Online Generator" and includes the malicious URL, indicating a phishing attempt to trick users into visiting a potentially harmful site. The presence of embedded URLs and the nature of the lure strongly suggest a phishing attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9989

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/406889139/coin-master-hack-tool-access-online-generator-game-hack In PDF document text
    • http://lib.uho.ac.id/library/repository/free-robux-no-verification-at-In PDF document text

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