Malicious PDF — malware analysis report

Heuristics 4

• 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.
• 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.me/123?keyword=fake+1804+silver+dollar+value In PDF document text

  • https://cdn-cms.f-static.net/uploads/4384167/normal_5f9b2cf0308fa.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4384295/normal_5f8d21e4d5a2b.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4379718/normal_5f93d55e42612.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4392442/normal_5fa0463f6f25e.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4378171/normal_5f9b2ccb0744d.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/572de271-3b7d-424b-97ec-92391761b36f/77873331058.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1105a407-f6c5-4a72-8699-0d682ec64306/litarajanaguwowo.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/51b1dbfb-ac63-4369-b859-e0f993aa0bbb/kozurufofakagex.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e93c0eef-9009-4d57-ad5d-8fe2028a0449/galun.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/8fbf361b-fb34-4de1-b1a6-4a455787548f/gelatin_sheets_powder_conversion.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/48498c68-ae2b-4f38-9eb2-0eeafa58dd62/nba_2k17_vc_generator_no_human_verification_no_survey.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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