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=7th+grade+fry+word+list In PDF document text

  • https://cdn-cms.f-static.net/uploads/4377380/normal_5f96b8c338cd0.pdfIn PDF document text
  • https://jivexine.weebly.com/uploads/1/3/1/3/131380908/9448661.pdfIn PDF document text
  • https://nixofukotozawe.weebly.com/uploads/1/3/4/3/134313466/xipamido.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366011/normal_5f874bac9dd81.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4380523/normal_5f90b267ccdce.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366653/normal_5f990c97310d6.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4391319/normal_5f8e965887bf2.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4379854/normal_5f8e7d9ce3824.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368770/normal_5f87e4c3ef5f5.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4380530/normal_5f95f80276f78.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000769d.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000769d.bin)
  • http://www.daltonmaag.com/In extracted file (font_02_sfnt_off0000ac03.bin)
  • https://uploads.strikinglycdn.com/files/fad1b8aa-932e-4e7a-8b8b-8c6239a38c27/5076926928.pdfIn PDF document text
  • https://s3.amazonaws.com/geradi/ayurvedic_books_in_hindi_free_download.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/4af5d5b7-c0e2-4f06-8a80-5548d66bc4f9/wilton_cake_sizes.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/973ea858-716d-4fbb-865b-b6c84edcfa15/wagonefikabi.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/2abdaa4e-005e-494f-81c4-e5933a4d99ad/73915057189.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/99cf78b2-e427-492a-badc-c82708fa29e5/vurufejafavotubadolokasol.pdfIn PDF document text
  • https://s3.amazonaws.com/wofaxil/93728975916.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/42e1405a-18b7-4ff6-a4f9-77eb7125c847/civpro_outline_nyu.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_off0000769d.bin)

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