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/pify?keyword=spur+menu+pdf+download+2020 In PDF document text

  • https://cdn-cms.f-static.net/uploads/4393356/normal_5f93b367921d7.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4381788/normal_5f9580064c26a.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365639/normal_5f86f4361cd3f.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4371505/normal_5f8a4fa0e5778.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367625/normal_5f90dae35b806.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4390323/normal_5f94e288d8825.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365555/normal_5f8705609d542.pdfIn PDF document text
  • https://mumixopid.weebly.com/uploads/1/3/1/8/131872042/dibozanuj.pdfIn PDF document text
  • https://zisokilusativ.weebly.com/uploads/1/3/2/3/132303079/4843020.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4370302/normal_5f89f4ed58775.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4383445/normal_5f94a6b867e2b.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4380540/normal_5f8e0ff453da0.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4379498/normal_5f8ee12dca6dc.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_01_sfnt_off00008cc6.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_01_sfnt_off00008cc6.bin)
  • http://www.daltonmaag.com/In extracted file (font_04_sfnt_off0000d8e4.bin)
  • https://s3.amazonaws.com/jafujasiwetid/wevudak.pdfIn PDF document text
  • https://s3.amazonaws.com/mibiwivanetuj/refugee_alan_gratz_download.pdfIn PDF document text
  • https://s3.amazonaws.com/tetazino/6th_to_10th_book_back_questions_and_answers.pdfIn PDF document text
  • https://s3.amazonaws.com/mijedusovineti/basic_biostatistics_notes.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/2dbfa6aa-05e6-487d-9731-0048f96a4529/70003390686.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/b2fa725d-168f-4f93-b80e-b44417f4f53e/badiborujugaranovinex.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/355a74c2-373d-49d5-a647-a508b0952efa/55678013003.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_01_sfnt_off00008cc6.bin)

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