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/aws?keyword=mision+de+sena In PDF document text

  • https://cdn-cms.f-static.net/uploads/4377647/normal_5f8d97f907363.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4382429/normal_5f9501a34be0b.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4393359/normal_5f9728c7c3838.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4378831/normal_5f910f8584ad3.pdfIn PDF document text
  • https://gizumefelaz.weebly.com/uploads/1/3/4/3/134318195/7367486.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366041/normal_5f88ecec56826.pdfIn PDF document text
  • https://kidunaxu.weebly.com/uploads/1/3/1/4/131437100/6916491.pdfIn PDF document text
  • https://jawasolasazilem.weebly.com/uploads/1/3/1/3/131379174/beparinunij.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4381964/normal_5f980c294c68d.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4392220/normal_5f94fc6ea5353.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00005f2c.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00005f2c.bin)
  • https://s3.amazonaws.com/tiluwisulepam/numeros_romanos_del_500_al_1000.pdfIn PDF document text
  • https://s3.amazonaws.com/nujosuwemedadi/raising_arizona_quotes_recidivism.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0434/0314/9479/files/carnival_of_venice_trumpet_sheet_music.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0437/9262/9917/files/it_novel.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/b7b6d1f1-3425-4867-9723-8ae6ae47c7a4/69748014943.pdfIn PDF document text
  • https://s3.amazonaws.com/susopuzupure/critical_thinking_the_art_of_argument.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1a16a9a0-02a9-4fe3-ba84-f185763b9601/nubupurato.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e8f80704-8247-4fda-8006-96034c5aae1c/zaxejakadedesojivek.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0268/8437/4726/files/rejoice_in_the_lamb.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_off00005f2c.bin)
  • http://dejavu.sourceforge.netIn extracted file (font_02_sfnt_off00009146.bin)
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_02_sfnt_off00009146.bin)

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