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/123?keyword=mindbender+mansion+answers In PDF document text

  • https://cdn-cms.f-static.net/uploads/4402244/normal_5f9359df19487.pdfIn PDF document text
  • https://tavumake.weebly.com/uploads/1/3/2/7/132740551/mewomosexu.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4378405/normal_5f8eb9476b905.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4392651/normal_5f8f163516cc7.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4385217/normal_5f8f84359125e.pdfIn PDF document text
  • https://nefenupenarus.weebly.com/uploads/1/3/4/4/134476068/rujopep_bipixa_razuvogop_likemoziseson.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365652/normal_5f8758fea09b8.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4374371/normal_5f94ecae92f12.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://uploads.strikinglycdn.com/files/6bd24694-a07a-4b01-99c1-cf94e4561b09/midosepobukolerojefi.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/cc85edb9-95c6-48f9-9306-82ceb56fb9d0/vijotapumusoku.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/595f4fcf-25d7-46d9-8792-a21b12922eef/78197475232.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/4d1d007d-0312-4871-8cc1-e784702ae815/patron_de_poule_a_imprimer.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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