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=cambridge+igcse+accounting+book+answers In PDF document text

  • http://gutuj.dexxpeay.com/uploads/1/3/2/6/132680977/ee34d3e5a3e.pdfIn PDF document text
  • http://files.beautyclinicohio.com/uploads/1/3/0/7/130739348/3341433.pdfIn PDF document text
  • http://files.nzkoru.com/uploads/1/3/1/6/131606349/bd4dc2e.pdfIn PDF document text
  • http://zasusosi.winstonsalemshagclub.com/uploads/1/3/1/6/131606492/2455428.pdfIn PDF document text
  • http://nuguz.fowlervillebands.com/uploads/1/3/1/4/131453574/8782440.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000412d.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000412d.bin)
  • http://www.daltonmaag.com/In extracted file (font_02_sfnt_off000075a7.bin)
  • https://cdn.shopify.com/s/files/1/0486/2112/5792/files/vurilosigel.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/b30eddd5-afe0-4718-94ff-9336e1154b65/guvikorososinot.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/eacff6c7-27a6-4074-9f24-03eeb49610ab/xazani.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/627dd19e-e2b8-4335-aa68-3eb73c956da4/74153600988.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/19428e6c-2d71-4f6f-8841-a451fa3014b1/75054057682.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/727f1ca2-bf4a-40f7-8ee9-e36dae952720/bowasudemobomedufavuregek.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_off0000412d.bin)

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