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=thomas+galen+hieronymus In PDF document text

  • http://wetite.taichiwithxiaobo.com/uploads/1/3/0/7/130775411/ba15c17c.pdfIn PDF document text
  • http://files.dorabramden.com/uploads/1/3/1/3/131382141/3729828.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://cdn.shopify.com/s/files/1/0266/8970/0010/files/diary_of_a_madman_lu_xun_audiobook.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0485/2318/2235/files/24169498686.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0438/4784/4000/files/kazedizaza.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0432/6998/0320/files/tie_your_mother_down_lyrics.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0483/7864/2581/files/protons_neutrons_and_electrons_practice_worksheet_answers_w310.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0435/6649/7960/files/body_organization_and_terminology_worksheet.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/9db2edf4-3496-4f2b-9288-95a7a7509b0d/9832344409.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/a3ca8ce5-b16b-47fb-b619-3d840ee0d636/xadogezedufekitavuku.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e61d8b7d-8d49-472b-aa93-862403d814a6/42223839699.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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