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://traffking.ru/aws?keyword=citizenship+test+questions+uscis In PDF document text

  • https://cdn-cms.f-static.net/uploads/4370269/normal_5f9d627453b9e.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4381762/normal_5f8ce4f1c50ba.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4453741/normal_5fa5bca1dded0.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4382186/normal_5fa044d17f0ba.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4375517/normal_5f8a5e06a5f7b.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • http://www.daltonmaag.com/In PDF document text
  • https://s3.amazonaws.com/wizedumi/65275858812.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e441da38-de6c-4afd-b4e7-75bc2017d1b9/75433758458.pdfIn PDF document text
  • https://s3.amazonaws.com/pazifetanegapu/psychology_questions.pdfIn PDF document text
  • https://s3.amazonaws.com/lorerexeg/corsair_obsidian_450d_dust_filter.pdfIn PDF document text
  • https://s3.amazonaws.com/xakapudakadu/gariwexobo.pdfIn PDF document text
  • https://s3.amazonaws.com/wiwamoxamo/graphical_user_interface_notes.pdfIn PDF document text
  • https://tinogive.files.wordpress.com/2020/11/abstract_algebra_an_introduction.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/0583708b-3e64-4347-a67c-4d7076fddcc1/old_style_jingle_dress_regalia.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/237b28fe-fd86-4897-9fb4-55ad44c8812d/who_vs_whom_worksheet.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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