Malicious PDF — malware analysis report

Heuristics 5

• 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.
• External URI info PDF_URI
  PDF contains an external URL action
• 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://traffset.ru/aws?keyword=types+of+artwork+prints PDF link annotation

  • https://kifisiwa.weebly.com/uploads/1/3/4/2/134266158/zezevini.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4389606/normal_5f98cbaf3f32f.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4370542/normal_5f96f2506f56d.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368506/normal_5f94d487a9fdb.pdfIn PDF document text
  • https://sofowalomutupal.weebly.com/uploads/1/3/4/3/134310420/xebipiwinu-pojinubekotiso-duzezunidere-tuxijixolamet.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4370525/normal_5f91d753b7bd3.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4386842/normal_5f9b3ff4e86ac.pdfIn PDF document text
  • https://xuguzopagar.weebly.com/uploads/1/3/4/4/134490213/6426f.pdfIn PDF document text
  • https://genigudepa.weebly.com/uploads/1/3/1/0/131070712/gapovowumepekegosiza.pdfIn PDF document text
  • https://fasefipuronupa.weebly.com/uploads/1/3/4/4/134471496/2933254.pdfIn PDF document text
  • https://mumixopid.weebly.com/uploads/1/3/1/8/131872042/lexiju.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4381302/normal_5f8fd85d5e7b1.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00006044.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00006044.bin)
  • 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_off00006044.bin)

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