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=1624+crosby+ave+bronx+ny PDF link annotation

  • https://cdn-cms.f-static.net/uploads/4380863/normal_5f9132eb2e52f.pdfIn PDF document text
  • https://ruwadegefanum.weebly.com/uploads/1/3/4/1/134108857/6265144.pdfIn PDF document text
  • https://lozagazol.weebly.com/uploads/1/3/4/2/134266804/fba6f5474c.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4401692/normal_5f96f72bc28ea.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/woberiz/sosuvogugilomikudokaxugen.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/0ca84363-8b0c-44aa-bc41-cc7d8dd42d8c/edifier_luna_eclipse_e235.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/7b96223e-8213-4118-a3f1-15e76e95be04/wariwawuxurezej.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/84fd8608-3d5d-4e85-a34d-f85a9af93aec/imprimante_40_ppm.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/6db84487-fed3-4192-b99c-ef073cabbb69/untold_scandal_2003.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1e365bda-b44e-49d0-9709-68653a13cb06/dutinosetidefaxadebep.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/66de5fe0-d9e3-421c-a87e-af71cc6bf6a6/sutekomob.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/3c938d0b-704a-4afa-ba72-30d40ad9dd7b/tuwutisigibozum.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/45741a8e-879c-4c69-bd32-015f3f31dbdc/asus_n53s_driver.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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