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=iron+deficiency+anemia+pdf+journal In PDF document text

  • https://cdn-cms.f-static.net/uploads/4376619/normal_5f92f2f5801ee.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367287/normal_5f8895587fed3.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366302/normal_5f925fb3968ee.pdfIn PDF document text
  • https://vodiwisilob.weebly.com/uploads/1/3/2/6/132681054/dewunosemat_sonetewunumupo.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://cdn.shopify.com/s/files/1/0434/7189/6741/files/ruwefupugoguban.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0459/9031/4141/files/arihant_mechanical_engineering_handbook.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0437/4996/5985/files/american_school_algebra_2_exam_answers.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0496/0894/9909/files/kunofezelerut.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0429/0389/6217/files/diskdigger_pro_apk_full_version.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0434/9729/1941/files/71089061335.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0501/9009/0413/files/coal_hearted_mhgen.pdfIn PDF document text
  • https://s3.amazonaws.com/fasanag/nikubililu.pdfIn PDF document text
  • https://s3.amazonaws.com/kigavanus/90990853032.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/79dfa7ed-6ce0-40f7-bb60-36573cbb0b74/94656203606.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/f94c219e-675a-44bf-8ebb-f32cb0b3c19d/kajelixodatetobud.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/9941e221-a5df-4b7e-87f4-bda6e7624809/wifureremasenemusigez.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/04fc107d-c2b9-41ad-a7cc-864faf2554c0/registro_anecdotico_preescolar.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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