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/123?keyword=google+play+store+amazon+fire+tablet+apk In PDF document text

  • https://kelobutino.weebly.com/uploads/1/3/0/9/130969458/3121684.pdfIn PDF document text
  • https://sesuwulot.weebly.com/uploads/1/3/1/4/131438847/da0366c694e301c.pdfIn PDF document text
  • https://povutepumik.weebly.com/uploads/1/3/2/7/132741486/wudipikex.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367305/normal_5f8764f4e5aca.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366625/normal_5f873d196d3e9.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4370263/normal_5f8904696a4df.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368956/normal_5f87a042dabaf.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366327/normal_5f88c21414fff.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366335/normal_5f88c639c4fc5.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365998/normal_5f879a8a70577.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365552/normal_5f88c3a777d5b.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366964/normal_5f876219b20d9.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366665/normal_5f87428503f79.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367952/normal_5f879ca355a06.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369659/normal_5f88d2eb15e0d.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366965/normal_5f8749a7cb032.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://uploads.strikinglycdn.com/files/8fdee722-e48c-47ef-a3a8-330ab6da3931/jobaxexe.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/abc2f8f4-2dd8-443b-b4fa-d3765065bbe9/26659895878.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/b10e69fc-9713-4819-9d55-25fbcc3369e8/voxupel.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/615c563f-9eb2-4b99-9ee8-32d7dde5cabe/63297542803.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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