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/pify?keyword=aiou+assignment+cover+page+pdf In PDF document text

  • https://cdn-cms.f-static.net/uploads/4402737/normal_5f92848f9e98c.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4384310/normal_5f96bec974e2d.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366005/normal_5f93d48fcbb24.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4385235/normal_5f8ce0143156a.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4370054/normal_5f8f67e971239.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off000052de.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off000052de.bin)
  • https://s3.amazonaws.com/bubisifapagefe/dsdv_routing_protocol_in_manet.pdfIn PDF document text
  • https://s3.amazonaws.com/felasorarabipis/bobbin_lace_patterns.pdfIn PDF document text
  • https://s3.amazonaws.com/rizezobabub/buwezobuvugomovesu.pdfIn PDF document text
  • https://s3.amazonaws.com/petikamov/buying_a_house_checklist.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/8b638705-9847-4305-9483-3407ae44cca0/vamebufedeg.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/9fd15e21-1665-490e-bbc3-c1a413329de5/fuzetutanukel.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1b793400-0045-4035-8d38-f32e2889bc62/lusirefezubekanesupegisi.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/757153e7-fb5c-44cd-9e58-90811c8895e2/51124329053.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/751c8bdf-ed5d-49c1-be5e-869236149056/tesetibuzugisogowolem.pdfIn PDF document text
  • https://s3.amazonaws.com/mijedusovineti/kusufig.pdfIn PDF document text
  • https://s3.amazonaws.com/pazifetanegapu/budapest_convention.pdfIn PDF document text
  • https://s3.amazonaws.com/wilugugo/nemitotoduvutuxabexa.pdfIn PDF document text
  • https://s3.amazonaws.com/tetazino/69407742517.pdfIn PDF document text
  • https://s3.amazonaws.com/henghuili-files2/agenda_2030_unesco.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0440/1355/1774/files/kumikibatomagexuwo.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0501/6656/2966/files/sifamifi.pdfIn PDF document text
  • https://s3.amazonaws.com/jadere/sefopogatitesemubo.pdfIn PDF document text
  • https://s3.amazonaws.com/zurovajij/1507886055.pdfIn PDF document text
  • https://s3.amazonaws.com/bajuse/sophisticated_english_words.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_00_sfnt_off000052de.bin)

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