Malicious PDF — malware analysis report

Heuristics 5

• 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.
• 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=baby+weaning+foods+pdf In PDF document text

  • https://site-1038796.mozfiles.com/files/1038796/13577175237.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366622/normal_5f87e83c09b42.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365653/normal_5f86fbee261d8.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366969/normal_5f873703eec76.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_01_sfnt_off00008d4b.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_01_sfnt_off00008d4b.bin)
  • http://www.daltonmaag.com/In extracted file (font_05_sfnt_off0000e1c4.bin)
  • https://cdn.shopify.com/s/files/1/0482/9629/6612/files/duralepimuvisalifixuzufe.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0496/3732/6997/files/24254405269.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0430/6580/2905/files/12867472849.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0432/3151/0690/files/69486087388.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0435/0899/0116/files/58842674267.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0431/7220/0608/files/wot_asia_tournament.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0432/7525/5972/files/82230575998.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/df18d54e-2329-43e3-9b52-aec4d439e997/26566368829.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/eb69a30b-c4b7-439e-81d7-8c855a756bea/82213564134.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/aee8a5ec-4e70-49bc-9201-116cdb2f0ff1/78203669279.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/c7e5f3cc-5271-4289-99cd-500253fe1169/lavisajumamefat.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/24366132-cf26-462c-b34e-612af6963805/jokedotaxife.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/d8e6b85f-1d94-43b0-8acb-bd2d629eee27/sakod.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/0957e389-3071-464a-b325-f436d517c046/vijuzawu.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
  • https://savannah.gnu.org/projects/freefont/In extracted file (font_00_sfnt_off00007d57.bin)
  • http://www.gnu.org/licenses/In extracted file (font_00_sfnt_off00007d57.bin)
  • http://www.gnu.org/copyleft/gpl.htmlIn extracted file (font_00_sfnt_off00007d57.bin)
  • http://scripts.sil.org/OFLIn extracted file (font_01_sfnt_off00008d4b.bin)
  • http://dejavu.sourceforge.netIn extracted file (font_04_sfnt_off0000cd5c.bin)
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_04_sfnt_off0000cd5c.bin)

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