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.
• Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
  Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
• 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/pify?keyword=high+dose+flu+vaccine+2020+guidelines In PDF document text

  • https://cdn-cms.f-static.net/uploads/4366398/normal_5f87bcce421fc.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369647/normal_5f880d234587f.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368955/normal_5f87aeb57bff3.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365525/normal_5f872c25ba315.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365662/normal_5f874c7c75bc7.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366958/normal_5f8767295d69e.pdfIn PDF document text
  • https://site-1041492.mozfiles.com/files/1041492/ratub.pdfIn PDF document text
  • https://site-1042765.mozfiles.com/files/1042765/43582317634.pdfIn PDF document text
  • https://site-1036911.mozfiles.com/files/1036911/zezaviru.pdfIn PDF document text
  • https://site-1039702.mozfiles.com/files/1039702/80373425764.pdfIn PDF document text
  • https://site-1044020.mozfiles.com/files/1044020/delovajik.pdfIn PDF document text
  • https://site-1036872.mozfiles.com/files/1036872/gakexibiwudafataleju.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/c8eb307b-3cbc-4e31-8252-75008c533a60/nemigeteroxumaj.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/760518fa-0360-4cc1-b2c3-918773513ec4/30060023944.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/979d7690-b7be-436d-9253-f85df9e68e90/18231624218.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/cc039ba8-6b85-4406-9a60-0cc1e96d18fb/11590264348.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/29478a76-ac88-446d-bb15-ad70588f2b86/95249570501.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0436/3157/5198/files/human_communication_5th_edition_pearson.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0501/0980/8797/files/android_update_for_huawei_mate_7.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0481/7587/4199/files/venosomimu.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0431/6551/5933/files/klik2_installation_manual.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0493/4064/5570/files/cells_vocabulary_crossword_answers.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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