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.com/aws?keyword=libro+el+barril+de+amontillado+pdf In PDF document text

  • https://guwomenod.weebly.com/uploads/1/3/0/8/130873843/domovodibaposix.pdfIn PDF document text
  • https://tevumusavobe.weebly.com/uploads/1/3/4/1/134108657/6940609.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4384325/normal_5f8d40f57ba0e.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4376374/normal_5f91e8a294811.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4376354/normal_5f9095f1b415e.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366655/normal_5f9202b73e1ef.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368495/normal_5f88ee0a17f6e.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4403537/normal_5f90f378423e9.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00006e94.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00006e94.bin)
  • http://www.daltonmaag.com/In extracted file (font_02_sfnt_off0000a446.bin)
  • https://uploads.strikinglycdn.com/files/0d86ad6f-4dca-47e2-948b-7a127e3cd434/4473046211.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/a513c0ec-a008-4635-8a8b-e3d383ebeb26/28301135071.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/3c14b7b0-7d6b-4454-91bc-99269206890f/barudaxojokizudikanobuvi.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/c9d26ede-d6dc-4916-8263-b918d3c28c2f/13954208196.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/27115772-1420-4995-b40e-1724a983e359/42494603681.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/bcbbb504-67eb-4d78-a6f4-3bfd5474cfdc/bovufojo.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/721b1297-c9a5-427a-a5a7-1ea5e937d024/wujexelazuwuwasipepof.pdfIn PDF document text
  • https://s3.amazonaws.com/bubodeliza/31723141427.pdfIn PDF document text
  • https://s3.amazonaws.com/mijedusovineti/tanewiwej.pdfIn PDF document text
  • https://s3.amazonaws.com/dutimajizowa/bezekanosapumiganagafe.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_off00006e94.bin)

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