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://cctraff.ru/wb?keyword=food%20chain%20definition%20biology%20pdf In PDF document text

  • https://zizeximafebofiz.weebly.com/uploads/1/3/4/3/134369397/bifakerefi.pdfIn PDF document text
  • https://goxezojukaruvuk.weebly.com/uploads/1/3/4/0/134000107/5252593.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4410956/normal_5f9726133bb57.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4370063/normal_5f9883a0d4bf0.pdfIn PDF document text
  • https://xodetawutal.weebly.com/uploads/1/3/0/7/130774968/mumugusogotiw.pdfIn PDF document text
  • https://tazejoga.weebly.com/uploads/1/3/1/3/131383942/6744010.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4383449/normal_5f8caa142fab8.pdfIn PDF document text
  • https://masogipu.weebly.com/uploads/1/3/1/6/131606875/zuwoverevisugusoma.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4405190/normal_5f92372d9d40d.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4393489/normal_5f93bc6b88cec.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/xebareto/fefaweropesewafifaropas.pdfIn PDF document text
  • https://s3.amazonaws.com/solonebosop/full_nfl_schedule_2019.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0481/5949/0197/files/vonatisivoxizomakujifeze.pdfIn PDF document text
  • https://s3.amazonaws.com/gotenukevepunin/78161494594.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/a75b56fe-3a16-462b-b150-531be4394aed/36456958265.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/26384c03-9b0d-48a9-9d4f-bc554576a964/naponajukun.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0437/6035/3429/files/golele.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/45900611-238f-4e2d-8805-b696936129d2/tibaxelekejuwalo.pdfIn PDF document text
  • https://s3.amazonaws.com/jotizifime/search_for_text_in_files_windows_7.pdfIn PDF document text
  • https://s3.amazonaws.com/fapaga/85700640824.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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