Malicious PDF — malware analysis report

Heuristics 6

• 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.
• Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
  Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
• 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/strik?keyword=nexos+que+relacionan+temporalmente+los+enunciados In PDF document text

  • https://cdn-cms.f-static.net/uploads/4366003/normal_5f871f0b2780a.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366350/normal_5f87138d849e0.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366024/normal_5f88fd93769b1.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366022/normal_5f86f92e98311.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368777/normal_5f87da860df48.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369307/normal_5f88782135afd.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366362/normal_5f888e5c8d997.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366389/normal_5f872adaa1e64.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366351/normal_5f870f66c0cf1.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366661/normal_5f88122b84c44.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/4c8881b3-caa9-46c3-b4a8-dc3d0074c645/tifizulize.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/b65e5b96-ae8c-4eac-b3f6-b160b493ddc1/74601921860.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/547fc73d-7d7a-4b80-bfd6-66abf5260fcd/gufovovimavadutanupoges.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/82c6eed3-5e55-4c5a-9da3-1255dc969a7b/ponivofopu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/744078fd-ab08-4f20-a65b-6f1072735182/netanunajalalupex.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/4220c2ca-ddbf-45ef-872d-8aa305db68e4/nolixi.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/3a547319-ad87-415f-bf08-204b81704dab/wibigufubabopeselataza.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e09283be-82c0-42ac-adfe-3da941dc1579/30428405499.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0435/3631/8616/files/lab_rescue_glendale_az.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0499/3866/1534/files/is_physical_appearance_important.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0266/9264/9146/files/clinical_biostatistics_made_ridiculously_simple.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0266/9789/2030/files/61904614677.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0266/8521/0802/files/doxadalamanogawoweles.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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