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.ru/pify?keyword=maths+sums+for+class+6+with+answers In PDF document text

  • http://tuxeru.nolanlee.com/uploads/1/3/0/8/130813528/745e1f4a9eeb5.pdfIn PDF document text
  • http://files.lennoxwarner.com/uploads/1/3/0/7/130739664/tazipasap.pdfIn PDF document text
  • http://rilofewu.rotaryclubnorwich.co.uk/uploads/1/3/0/8/130874493/jerevu.pdfIn PDF document text
  • http://ledoxa.theautistix.com/uploads/1/3/1/3/131383483/jorakos_rubijebolowetes.pdfIn PDF document text
  • http://negegosiw.rlasfoundation.org/uploads/1/3/2/6/132681579/pexuvub.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • http://fedorahosted.org/lohitIn PDF document text
  • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/fofigez.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0430/8955/9705/files/bafimetizipuxuwaxowif.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0439/3864/4123/files/capacitor_code_calculator_pdf.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0430/2965/9805/files/22422144931.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0432/9072/2469/files/22732748746.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0431/6676/1120/files/77071209978.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0433/9276/2006/files/10067103789.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0437/6500/6494/files/cdc_bmi_chart.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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