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://cctraff.ru/123?keyword=tecnologia+assistiva+nas+escolas+pdf In PDF document text

  • https://cdn-cms.f-static.net/uploads/4369911/normal_5f960549f38f8.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365639/normal_5f90d6ae41d59.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369163/normal_5f8904d241447.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4379859/normal_5f927d4246b5d.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4401525/normal_5f95ff4bbf609.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4371269/normal_5f89ce1e77f1b.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4383915/normal_5f94f6c85089f.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4402737/normal_5f92848f9e98c.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4388833/normal_5f90ec03516b4.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00007fc6.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00007fc6.bin)
  • https://uploads.strikinglycdn.com/files/33f1ed0b-9f04-45cc-a57a-ba7a1f90a0a0/figudibejube.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/b5b61f74-9151-4807-b319-c869c4ce7574/18782409620.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/81b2f0d2-9304-4aef-9ca0-4c4927d3e81c/87130296693.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/a530717b-3f67-4d53-916a-80ab942fb95e/besame_mucho_sheet_music.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/94065121-fafa-4fd4-a11c-b4aa6674c5e6/15726302332.pdfIn PDF document text
  • https://s3.amazonaws.com/zuxadol/lactogenesis_humana.pdfIn PDF document text
  • https://s3.amazonaws.com/zinudipir/42044965890.pdfIn PDF document text
  • https://s3.amazonaws.com/tetazino/68604458777.pdfIn PDF document text
  • https://s3.amazonaws.com/fasanag/aren_t_you_glad_you_read_this.pdfIn PDF document text
  • https://s3.amazonaws.com/mijedusovineti/rowazaxodoxofen.pdfIn PDF document text
  • https://s3.amazonaws.com/leteraxewe/soxalaradolufexegifiwi.pdfIn PDF document text
  • https://s3.amazonaws.com/tujeviwakirawu/boxford_aud_lathe_manual.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0482/7506/2945/files/57304550747.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0505/6131/9077/files/46363248666.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0431/0699/2289/files/android_headset_bluetooth_button.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0501/0436/9319/files/28552340826.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://dejavu.sourceforge.netIn extracted file (stream_006_off0000b9a5.bin)
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (stream_006_off0000b9a5.bin)
  • http://scripts.sil.org/OFLIn extracted file (font_00_sfnt_off00007fc6.bin)

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