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://ggtraff.ru/wb?keyword=mcculloch%20v%20maryland%201819%20worksheet%20answers In PDF document text

  • https://s3.amazonaws.com/bodepova/62835110566.pdfIn PDF document text
  • https://s3.amazonaws.com/kavitokolezub/bohemian_rhapsody_partitura_piano_original.pdfIn PDF document text
  • https://s3.amazonaws.com/jeduzizonox/kikupikikujobotovizow.pdfIn PDF document text
  • https://fanamariruzatad.weebly.com/uploads/1/3/4/5/134514157/bda913ae410770.pdfIn PDF document text
  • https://siregudak.weebly.com/uploads/1/3/0/7/130738759/785c26ac87cc3.pdfIn PDF document text
  • https://s3.amazonaws.com/tudawufed/public_policy_in_india_book.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4387712/normal_5f975fa4ba13d.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4387562/normal_5f8d92622eb72.pdfIn PDF document text
  • https://danizodeker.weebly.com/uploads/1/3/4/5/134581754/metuxi.pdfIn PDF document text
  • https://s3.amazonaws.com/muvunekagok/76349999760.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000400d.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000400d.bin)
  • http://www.daltonmaag.com/In extracted file (font_02_sfnt_off00007273.bin)
  • https://uploads.strikinglycdn.com/files/2e0bb682-0e1e-4db9-aa02-b379cb7bbf46/28482417546.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/45a13251-4614-4d3f-92ee-37a9b03a82c9/56228019157.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_off0000400d.bin)

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