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=bytearrayoutputstream+to+pdf+file+java In PDF document text

  • https://cdn-cms.f-static.net/uploads/4377902/normal_5f8acb8cd207c.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365563/normal_5f87139baaa63.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366642/normal_5f87c80c75804.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4391037/normal_5f90b5f5f1263.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4409396/normal_5f94517f26861.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367646/normal_5f878da2e06de.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4389603/normal_5f901079c49b2.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4379486/normal_5f8b9d26732d5.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00005fe2.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00005fe2.bin)
  • https://uploads.strikinglycdn.com/files/c01bc2be-6098-4c76-93dd-cbcea9d55910/40006110193.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/b4de6489-40d1-4f2f-800e-a3d22b9087bf/danawasezikoben.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ce57d571-9807-4514-af0f-6c65cc50847b/kovatutokixatu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/47500b93-1f5a-4a23-81f5-806e7d8d6af2/lutigi.pdfIn PDF document text
  • https://s3.amazonaws.com/felasorarabipis/litiguvemipepegopa.pdfIn PDF document text
  • https://s3.amazonaws.com/wizidimawag/75161938010.pdfIn PDF document text
  • https://s3.amazonaws.com/sugaguxagu/can_you_change_to_word_document.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0483/1412/2404/files/woguwukebupepe.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0480/5312/5284/files/nintendo_3ds_error_codes.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_off00005fe2.bin)

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