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=peace+sells+lyrics+ill+bill In PDF document text

  • https://cdn-cms.f-static.net/uploads/4380869/normal_5f9327e6b6b46.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4389074/normal_5f97c5feb1781.pdfIn PDF document text
  • https://vuxozajuje.weebly.com/uploads/1/3/1/3/131379873/vudodapazepipux_kijemomebegax_velagokotukif.pdfIn PDF document text
  • https://dujopoda.weebly.com/uploads/1/3/0/7/130739119/sakeju.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00005f9f.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00005f9f.bin)
  • https://uploads.strikinglycdn.com/files/e263c6e6-99ce-4af1-9c97-b4d9aeac1d50/difukizuwiribenagi.pdfIn PDF document text
  • https://s3.amazonaws.com/sulasatevirexo/softball_score_sheet.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/d0595df3-fc51-4d16-bea8-334366c02245/36576407847.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/64073790-48de-4cfc-a30c-c9f2fbeb625d/98733825327.pdfIn PDF document text
  • https://s3.amazonaws.com/kavitokolezub/7504366147.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/9e4802a3-aea4-43f6-a25f-1c7081343d51/91943506750.pdfIn PDF document text
  • https://s3.amazonaws.com/xozeb/cacing_ancylostoma_duodenale.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/6a76e40a-4f6a-4b60-83d6-01f6a187331d/dumepovokugejop.pdfIn PDF document text
  • https://s3.amazonaws.com/tezofuretejom/agonistas_y_antagonistas_adrenergicos.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_off00005f9f.bin)

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