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://ttraff.link/aws?keyword=bio+format+pdf In PDF document text

  • https://nonudefetug.weebly.com/uploads/1/3/4/3/134314303/6980060.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366408/normal_5f8948db49a8e.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4379720/normal_5f8e185e91189.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365584/normal_5f8c870f17438.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367297/normal_5f87487c73219.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4387031/normal_5f8ea93870236.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369498/normal_5f87df4fec3e3.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365653/normal_5f8726c35a7a5.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368218/normal_5f8af0598fe6e.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4386361/normal_5f8f672827bda.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366401/normal_5f8759e5bde0a.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4393488/normal_5f91659d45349.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366316/normal_5f94b11b6acb9.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4402940/normal_5f931c3537fa1.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00007ab3.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00007ab3.bin)
  • https://cdn.shopify.com/s/files/1/0429/2260/6759/files/77609753245.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0481/5693/4297/files/accepted_enthalpy_of_fusion_of_water.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0481/6093/1991/files/5597910998.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0495/5134/3768/files/93455875138.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0268/8132/7296/files/76623977521.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/8d958b43-52b1-4592-bdf9-7cb47c172052/why_you_reckon_langston_hughes.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/5cf73dce-29c2-4990-9cba-fe8993e04637/suvapasejaroliberexexuki.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e1fc470c-2b66-40e5-9122-8b8840f0260d/tv_guide_bethany_beach_de.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_off00007ab3.bin)
  • http://dejavu.sourceforge.netIn extracted file (font_02_sfnt_off0000b03e.bin)
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_02_sfnt_off0000b03e.bin)

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