Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea8efcb7c9760e0e…

MALICIOUS

PDF

5.6 KB Created: 2021-07-04 21:16:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-11
MD5: d0eb1563d520ed958fdf6dcadfc1ce3d SHA-1: 2f02fc6c089b36903e1be2cc3889405e52b28a42 SHA-256: ea8efcb7c9760e0ef678e004f3f822bbbb4c83c2fe741422966c96f83465d3b3
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that lead to a known malicious redirector, masquerading as a 'free generator / game hack'. The document body and extracted URLs explicitly mention game hacks and free spins for popular games like Coin Master and Roblox, indicating a social engineering lure. The presence of embedded URLs and the nature of the lure suggest a phishing or scam attempt, likely delivered as a spearphishing attachment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9345

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/free-spins-in-coin-master-without-human-verification-game-hack In PDF document text
    • http://stitqi.ac.id/website//repository/coin-master-free-spins-whatsapp-link_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/roblox-assassin-hack-script_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/minecraft-java-hacks_GM479516143.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/free-minecraft-realm-codes_GM479516143.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/how-do-you-get-free-daily-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/can-you-really-hack-coin-master-ios_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/how-to-use-python-to-hack-roblox_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/coin-master-hack-apk-free-download_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/coin-master-free-spins-link-today-instagram_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/best-scripts-for-roblox-hacking_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/spin-and-coin_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/free-coins-coin-master-link_GM406889139.pdfIn PDF document text

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