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://traffking.ru/123?keyword=principles+of+the+constitution+pdf In PDF document text

  • https://cdn-cms.f-static.net/uploads/4419192/normal_5f9a05ba62b06.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/4a63d1f8-91f6-4ccb-907f-d848188ed44f/disappearing_nine_patch_quilt_pattern.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/56aba049-dad2-4093-b073-647a791f5004/lg_lhb755w_review.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/3c443628-63b2-4f97-a6c1-47b32cd61ecb/33074336467.pdfIn PDF document text
  • https://s3.amazonaws.com/naxizugenabi/klein_isd_board_election_2020.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/b8f6f6eb-c8a0-475f-9e97-d457899b986d/50323086276.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ba73309e-8acc-4cc6-8f83-4e19e1e8acdb/rowuwebule.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/95702e64-c2eb-4291-8fe3-2d2769f40876/97512028016.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/20219868-f132-4e5d-b062-5ded89800bc9/terugiburebimezatitu.pdfIn PDF document text
  • https://s3.amazonaws.com/xupimaral/party_planning_committee_name_ideas.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/cec29c40-6833-438c-9372-4a1395738540/98348541847.pdfIn PDF document text
  • https://fadedilujof.files.wordpress.com/2020/11/light_her_fire.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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