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://trafficel.ru/aws?keyword=fury+race+cars+modified PDF link annotation

  • https://wesujugureju.weebly.com/uploads/1/3/0/8/130874517/4934707.pdfIn PDF document text
  • https://tipefejiri.weebly.com/uploads/1/3/0/9/130969755/jebajigoze.pdfIn PDF document text
  • https://tivaxuxilo.weebly.com/uploads/1/3/4/1/134131375/fomarofofe_pugakejavil_wasulalezupegil_femufukunap.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367648/normal_5f874c171bed1.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/1e8c864f-2a94-4760-88fe-a39fa39a005a/battlefield_5_the_last_tiger_letters.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/d364f7df-371a-4acc-b0e9-ad55bc839b8c/biderenimuviruxidipo.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/26ded2fa-62a6-4903-bb94-2c0ff069c038/27024538206.pdfIn PDF document text
  • https://vegekobifoxa.files.wordpress.com/2020/11/papugazumudoxiw.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/77e19c0f-a1e8-4d2f-95ec-027409efe60b/the_crown_jewel_of_the_british_empire.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/c4d5308e-3763-43d6-a340-eba55d573462/tom_sullivan_lumber_liquidators_net_worth.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/2986843b-4448-47b9-a5c8-d391351d2416/xituzukupibo.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/9f33305e-0363-4a2e-885a-cba19bdd940f/zoliladisixebafuriz.pdfIn PDF document text
  • https://s3.amazonaws.com/pibajuwi/stainless_steel_guide_rod_assembly_sd40ve.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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