Malicious PDF — malware analysis report

Heuristics 6

• 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.
• Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
  Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
• Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
  PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
  The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
• 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://ggtraff.ru/strik?keyword=2018+calendar+pdf+malayalam In PDF document text

  • http://files.nomadnubians.com/uploads/1/3/2/7/132741029/wobuxure-mowasota-zinutarogiwoba-daroj.pdfIn PDF document text
  • https://site-1036885.mozfiles.com/files/1036885/13528251530.pdfIn PDF document text
  • https://site-1037115.mozfiles.com/files/1037115/39657911648.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • http://smc.org.in)MeeraRegularMeera2016SMC7.0.0+20171102HussainIn PDF document text
  • http://smc.org.inhttp://smc.org.inIn PDF document text
  • https://cdn.shopify.com/s/files/1/0461/0611/6260/files/international_criminal_law_handbook.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0431/4667/4337/files/unikey_cho_ubuntu.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0433/5452/1758/files/online_payment_form_template_html_free.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0431/8917/4432/files/28051875081.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/003811fe-08e8-4056-9c40-d26bc205eb00/loroxojogawagaxunikaxefu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/2ac2d1cd-e0d5-4739-b032-42b28ce53e50/19389883166.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/19e1a0ca-872d-4126-965c-f28b9d8a4377/34830760514.pdfIn PDF document text
  • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
  • http://purl.org/dc/elements/1.1/In PDF document text
  • http://ns.adobe.com/pdf/1.3/In PDF document text
  • http://ns.adobe.com/xap/1.0/In PDF document text
  • http://ns.adobe.com/xap/1.0/mm/In PDF document text
  • http://ns.adobe.com/xap/1.0/rights/In PDF document text
  • http://scripts.sil.org/OFLIn PDF document text
  • https://gitlab.com/smc/meera/blob/master/COPYINGIn PDF document text
  • http://dejavu.sourceforge.netIn PDF document text
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

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