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://ttraff.link/123?keyword=samuelson+nordhaus+economics+pdf In PDF document text

  • https://mojivimimujovo.weebly.com/uploads/1/3/0/8/130874437/3006570.pdfIn PDF document text
  • https://nupariredarig.weebly.com/uploads/1/3/4/3/134357859/febed35576bb.pdfIn PDF document text
  • https://bizetuxerupa.weebly.com/uploads/1/3/0/8/130873791/5293624.pdfIn PDF document text
  • https://koxabiwepa.weebly.com/uploads/1/3/4/3/134309970/gowujetemadivax-fakobobimiraba.pdfIn PDF document text
  • https://buvonidodiwa.weebly.com/uploads/1/3/4/3/134332647/09d7729aa513.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4387918/normal_5f8fe8a6d2ee8.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369763/normal_5f8a877cd41b3.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00007e44.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00007e44.bin)
  • https://uploads.strikinglycdn.com/files/6af15eaf-4a7e-46f7-ada9-bbd152545f55/nukazibasubolotaxamos.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1e4dc43e-26d2-4252-8e1b-8467a3857923/88708692709.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ceb82a8b-b25c-4978-a4fa-c29421b215de/40108842174.pdfIn PDF document text
  • https://s3.amazonaws.com/gupuso/jekupo.pdfIn PDF document text
  • https://s3.amazonaws.com/jufowokedunod/simple_audio_amplifier_circuit_diagram.pdfIn PDF document text
  • https://s3.amazonaws.com/kikunojulejuj/26944399683.pdfIn PDF document text
  • https://s3.amazonaws.com/gupuso/93065187955.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/3584d508-3a79-40ec-a3da-663cf70c4236/daxubinu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/60e88e5a-441a-4806-ac3c-2f00b1427b19/28265070539.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e099db21-22cd-412f-9ae0-5584d3074213/notakedudigikinobiweg.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/79920fdc-b228-468b-8be6-f91e787f761b/amar_chitra_katha_stories_free_download.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1068aedd-781d-40d1-804c-833dfee16ff1/xalexejonupu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/fa685ae3-4d8c-4392-8132-ee9331a0e8a0/rifajaxewaroz.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 extracted file (font_00_sfnt_off00007e44.bin)

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