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://ttraff.club/pify?keyword=ucsd+jacobs+school+of+engineering+tuition In PDF document text

  • http://files.futsalwithoutborders.org/uploads/1/3/2/3/132303229/jatokusarojid.pdfIn PDF document text
  • http://files.sugarbakeshopperi.com/uploads/1/3/1/6/131606186/3788690.pdfIn PDF document text
  • http://files.f5b.co.uk/uploads/1/3/2/7/132712315/zinoro.pdfIn PDF document text
  • http://tedilu.superhelper.org/uploads/1/3/1/4/131407763/zapob_nuvuri_kebedes.pdfIn PDF document text
  • http://files.thebrainybrunette.com/uploads/1/3/2/6/132696030/gusepujaker.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://uploads.strikinglycdn.com/files/7bd43c2a-3a85-4736-a97e-c4d02054d60c/womidapikume.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0437/0304/2216/files/retonagebopanopi.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0485/2200/2587/files/nasa_nextstep_appendix_e.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0437/9148/3032/files/el_sobrante_california.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0437/4387/1128/files/philips_sonicare_expertresults_7000_electric_toothbrush_review.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0488/4303/0693/files/one_piece_at_a_time_cadillac_johnny_cash.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0483/1795/6260/files/44252854622.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

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