Malicious PDF — malware analysis report

Static analysis result for SHA-256 914a93ec28cbcd5a…

MALICIOUS

PDF

15.1 KB Created: 2021-06-03 19:18:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 56c3298f136d812221912d37f2eade94 SHA-1: 5169b7eafc3061ff99c500bfac48cb76f6568ea1 SHA-256: 914a93ec28cbcd5a48a388ae6a2daed3813f4bf3c651eea525a86e4aec8fe2ab
74 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a lure for 'free Robux' and game hacks, directing users to a malicious URL. While no scripts were explicitly extracted, the PDF structure and embedded links suggest an attempt to redirect users to potentially malicious content or phishing sites. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9911

Heuristics 3

  • PDF links to a 'free generator / game hack' redirector high 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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 https://netcdn.online/app/431946152/free-robux-stream-game-hack PDF link annotation
    • http://lib.fisipumt.ac.id/repository/aimbot-download-roblox_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/microsoft-rewards-roblox_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/roblox-robux-hack_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/roblox-no-download-hack_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/roblox-army-robux_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/coin-master-free-spins-link-no-verification-2021_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/minecraft-bedrock-edition-free-with-java_GM479516143.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/free-spins-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/how-to-hack-into-someones-robIn PDF document text

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