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=scary+games+unblocked+games+66 PDF link annotation

  • https://cdn-cms.f-static.net/uploads/4369659/normal_5f882c4ebda2a.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4388598/normal_5f924987d383f.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366958/normal_5f9189648c725.pdfIn PDF document text
  • https://dawiganolakegoz.weebly.com/uploads/1/3/4/3/134367714/sefinonuwijido.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4383165/normal_5f9428ec45e68.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4379230/normal_5f92618ac8b31.pdfIn PDF document text
  • https://jowovodepavilim.weebly.com/uploads/1/3/4/6/134651336/44f70b5c1a37bd9.pdfIn PDF document text
  • https://nofizosol.weebly.com/uploads/1/3/4/5/134500220/ff069f328f3c4e2.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4414678/normal_5f99dbfd0e4ce.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4385207/normal_5f9c18671f74a.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://s3.amazonaws.com/texifaxepag/icelandic_bind_off_purlwise.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/309ec8fe-8d6a-4fe8-8f4d-6944b2af9617/35675176834.pdfIn PDF document text
  • https://s3.amazonaws.com/jukoxisojow/despite_in_spite_of.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/29a6ad8e-48d2-4512-86dd-d5a054008120/3287846243.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ca4cd433-5a15-48ee-a1e1-56895b92f079/86782090955.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/c9291776-d18c-4d40-a79b-90c9b23877d8/ponimeziwofudininelefivov.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 PDF document text

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