Malicious PDF — malware analysis report

Heuristics 6

• 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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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.link/123?keyword=mapa+turistico+hong+kong+pdf In PDF document text

  • https://cdn-cms.f-static.net/uploads/4373248/normal_5f8e847369dea.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4383804/normal_5f938c33c9ebc.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4389107/normal_5f8e462e59461.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000d6b2.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000d6b2.bin)
  • https://s3.amazonaws.com/magapeguwabe/common_prefixes_and_suffixes.pdfIn PDF document text
  • https://s3.amazonaws.com/wilugugo/dotujifet.pdfIn PDF document text
  • https://s3.amazonaws.com/zuguvoxoki/7949634368.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0430/3283/8298/files/kalinka_partition_piano.pdfIn PDF document text
  • https://s3.amazonaws.com/zaxawetawupo/xagij.pdfIn PDF document text
  • https://s3.amazonaws.com/henghuili-files2/36858717582.pdfIn PDF document text
  • https://s3.amazonaws.com/tadovu/healthcare_administration_management.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0429/3004/5091/files/85059194994.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0496/6006/7991/files/40437805118.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0476/5794/3206/files/20808835568.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0266/8321/1975/files/zuvivamotej.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/11f755f8-89f9-4ed9-9397-c3fe03564b0d/15057927899.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/2405e2fe-bd9e-4647-a51f-23ec241ee508/jajutasumutexufuvawinomig.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/cc9ff583-a756-40e1-80e9-25a18ea078a3/59570613473.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/5ce252fe-faf8-4f28-a5bf-5387835e8717/filidi.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/83671c84-4161-48d5-ae10-1e97cef51065/a_year_without_mom.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 extracted file (font_00_sfnt_off0000d6b2.bin)

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