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://trafffi.ru/123?keyword=power+rule+exponent+calculator PDF link annotation

  • https://luwobidope.weebly.com/uploads/1/3/0/8/130814225/xikux_xotewibexowabo.pdfIn PDF document text
  • https://mefogogid.weebly.com/uploads/1/3/4/6/134600117/legujulirezawof.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4416125/normal_5fa724a7451c4.pdfIn PDF document text
  • https://xutetuzaxudekit.weebly.com/uploads/1/3/4/3/134371691/5298823.pdfIn PDF document text
  • https://vetovevigu.weebly.com/uploads/1/3/4/4/134486276/d26ab300a71c016.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/a56c8f2a-5e58-483e-8722-2fedced7ebf8/stanley_fatmax_700_charger_manual.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/aa85845d-3ab7-4fc0-87b2-b5d26b8066dd/red_cross_disaster_spiritual_care_training.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/f1c22b9c-e024-4392-8aa3-795040c5fc8d/79105051126.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/5745f3e6-2759-489d-a4b0-fffb5045b1df/le_rouge_et_le_noir.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/fdcd9d8a-5c3b-4209-94fd-1484b226f799/63456044358.pdfIn PDF document text
  • https://s3.amazonaws.com/tigovatolis/saturn_2003_l200_owners_manual.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ad28e54c-ea8b-4985-9792-cde539d6b208/rebigelinon.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/7e30c7f0-4166-4929-bb08-f5ffe584ed2f/bus_480_schedule.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/52b811f8-767b-4814-b924-0b8265e232df/81009716772.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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