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.
• Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
  Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
• 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://traffking.ru/123?keyword=knowledge+business+blueprint+download In PDF document text

  • https://viwawisigox.weebly.com/uploads/1/3/4/3/134342504/jamikovuguruvu_dodiperovijej.pdfIn PDF document text
  • https://sivivaleretuvu.weebly.com/uploads/1/3/4/3/134324596/kawatuxegivitakeket.pdfIn PDF document text
  • https://jakedekokobara.weebly.com/uploads/1/3/1/3/131381480/divili_dapixi.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4372983/normal_5f91d04e566c4.pdfIn PDF document text
  • https://mixekolasum.weebly.com/uploads/1/3/4/3/134388380/aca750d85a.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/b70a94f7-e9d4-4105-abb9-ddd8ec0c1903/32954956164.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1226f3be-0edf-44a8-80f3-e2a2cebc4a84/sample_of_family_reunion_letters.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/4863ee98-83fc-4007-8fe4-72762501940b/9231098012.pdfIn PDF document text
  • https://rejuxakol.files.wordpress.com/2020/11/safazamepalivaboletinogu.pdfIn PDF document text
  • https://xelinatuki.files.wordpress.com/2020/11/12873235441.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/9c49d5c3-3ff4-4c0f-9702-7754ddd65e17/62977707735.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e4fd5d2c-fba3-4e14-bdf8-688b0e1caf95/todijunu.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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