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://gettraff.ru/strik?keyword=dispositivos+de+expansi%25C3%25B3n+de+redes In PDF document text

  • https://cdn-cms.f-static.net/uploads/4365646/normal_5f87133424fa3.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4384460/normal_5f8e80e18765c.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4374710/normal_5f9091a268d98.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4380854/normal_5f8ec0e0c6ebf.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4408004/normal_5f93d73b7a8de.pdfIn PDF document text
  • https://xadokefaxigewaj.weebly.com/uploads/1/3/4/3/134314424/aa6b383e4.pdfIn PDF document text
  • https://vewutaniwem.weebly.com/uploads/1/3/0/8/130873717/navofomexevebo_lalatikiw_fitob_jomufebov.pdfIn PDF document text
  • https://fufivivol.weebly.com/uploads/1/3/0/8/130873849/5c41f.pdfIn PDF document text
  • https://jakedekokobara.weebly.com/uploads/1/3/1/3/131381480/6431815.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00006cf9.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00006cf9.bin)
  • https://s3.amazonaws.com/donarepemi/wimena.pdfIn PDF document text
  • https://s3.amazonaws.com/kavitokolezub/65461161063.pdfIn PDF document text
  • https://s3.amazonaws.com/dotivaf/economic_effects_of_globalization.pdfIn PDF document text
  • https://s3.amazonaws.com/wonoti/39204482880.pdfIn PDF document text
  • https://s3.amazonaws.com/vavapekadoliti/acids_and_alkalis_worksheet_answers.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/cc679735-0b01-480f-b996-3d82a6435adb/93648424107.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/bef3200c-48ae-44b2-a269-42c497df2903/72210243848.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/5d28138a-cbaa-403d-ac33-e89a06f86e1e/rumozujakeritosiwibeworim.pdfIn PDF document text
  • https://s3.amazonaws.com/lewuli/college_admission_essay_samples.pdfIn PDF document text
  • https://s3.amazonaws.com/degisapemifa/analytical_ability_test.pdfIn PDF document text
  • https://s3.amazonaws.com/gupuso/43768420731.pdfIn PDF document text
  • https://s3.amazonaws.com/sugaguxagu/jurnal_invertebrata_laut.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/6b2f046b-1ddc-4774-999d-dcdc0a2a1e8f/44339705324.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/80a72913-b471-4766-b050-051ee624fcd0/a_mente_esquerdista_baixar.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_off00006cf9.bin)

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