Malicious PDF — malware analysis report

Heuristics 5

• 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.
• External URI info PDF_URI
  PDF contains an external URL action
• 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://traffset.ru/123?keyword=battle+of+saratoga+map+interactive PDF link annotation

  • https://cdn-cms.f-static.net/uploads/4376866/normal_5f93ee3d77ed0.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4377098/normal_5f8d42f513abb.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4391326/normal_5f8f9be3ca999.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4444123/normal_5fa0fea081ea3.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4417830/normal_5f956ff499f80.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4390052/normal_5f9f0117c8bed.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4407988/normal_5f97af3aea2cf.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/0f7957aa-252e-4447-9d7d-91149e586cab/diablo_3_strategy_guide_free_dow.pdfIn PDF document text
  • https://s3.amazonaws.com/varoximu/fruit_loops_get_out.pdfIn PDF document text
  • https://sekusiwek.files.wordpress.com/2020/11/jeluxige.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ccef8126-8bc7-4f75-806f-0532d28dc023/wulujodasonadixuz.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/9a76f332-5810-46d7-b71f-8019b5df07d7/zisof.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/aa9b0247-85a0-47e6-976f-322c8684a59f/janet_jackson_nude.pdfIn PDF document text
  • https://s3.amazonaws.com/kasuwevovog/42946244033.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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