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://cctraff.ru/aws?keyword=samsung+tablets+comparison+chart+2018 In PDF document text

  • https://gosasomaf.weebly.com/uploads/1/3/4/3/134370397/begeduv.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4378393/normal_5f8d03edc7199.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4375887/normal_5f9caeede000a.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_01_sfnt_off00008de4.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_01_sfnt_off00008de4.bin)
  • https://cdn.shopify.com/s/files/1/0505/1786/8716/files/petelazemofenumun.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0503/8122/6158/files/66730399418.pdfIn PDF document text
  • https://s3.amazonaws.com/tadovu/eastern_railway_reservation_form.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/cfe05a83-51af-4ea6-9f23-0c061fe2ab35/sitaduzevogidufowunozifo.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0434/6707/9830/files/simplifying_expressions_with_rational_exponents_worksheet.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0468/0312/4375/files/23087431220.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/79588d8d-ef55-45d8-bce9-76dea5e42956/xaxazibufa.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/d479a9f4-9854-4ff4-8b83-01919c27995b/lego_marvel_superheroes_2_minikit_guide.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0484/8546/6267/files/keguwumitotal.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/660a307d-3fac-47ed-8216-1e95b8cdf5d0/16170983094.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/180812c5-70b5-4fa2-aa54-76761b8679fc/words_that_start_with_g_for_preschoolers.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0500/5764/2152/files/guidelines_for_wic_in_tn.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 extracted file (font_01_sfnt_off00008de4.bin)

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