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=antibiotic+resistance+in+gram+negative+bacteria+pdf In PDF document text

  • https://cdn-cms.f-static.net/uploads/4367640/normal_5f8d1868e87c6.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4370284/normal_5f89f4d7f153a.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365652/normal_5f8ffeb2df6b6.pdfIn PDF document text
  • https://kurikezexiwu.weebly.com/uploads/1/3/0/7/130775092/xazexelumiboru_vozivexorifisug.pdfIn PDF document text
  • https://vuxozajuje.weebly.com/uploads/1/3/1/3/131379873/8925184.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00006b36.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00006b36.bin)
  • https://uploads.strikinglycdn.com/files/91d892b6-743e-4288-87cf-48f96dd358a1/frank_hammond_soul_ties.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e3f0a832-cf63-4cac-abd5-efe239c84a4a/14921809575.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/cbcdb545-24e2-4565-8a8f-52722ecceaf2/dell_mih61r_mb_manual.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ad063182-171f-43af-88f5-da9580cf699c/83222313927.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/88b052c6-5078-4e25-93c3-de6c69b49e12/aplicaciones_de_la_hiperbola_en_la_ingenieria.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0487/0330/7926/files/75966779150.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0498/4494/5051/files/mean_bond_enthalpy_formula.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/dce3b26e-4591-4515-b5d2-aa866d66de4d/63274070446.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/99a325d6-898c-41fb-89a3-dce5d0f1fa0f/saruwobifunezadetuda.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/21f8379c-6489-444e-8a46-d744d61a1c53/margaret_atwood_the_handmaid_s_tale.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/d8fb7117-6260-4035-888f-13f2e3f3497f/kafumin.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/eed1d7ca-c41f-4214-816a-6f55ab817ade/64780156759.pdfIn PDF document text
  • https://s3.amazonaws.com/vososasoxumete/basketball_court_diagrams.pdfIn PDF document text
  • https://s3.amazonaws.com/gifiz/towurute.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_off00006b36.bin)

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