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/aws?keyword=oxford+english+dictionary+online+pdf In PDF document text

  • https://cdn-cms.f-static.net/uploads/4374369/normal_5f951a6c56deb.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4388183/normal_5f966f005b584.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368218/normal_5f8a5a8e284a2.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4386839/normal_5f8fa200496d9.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4376621/normal_5f90b0f4b9d1f.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365562/normal_5f876b6a61659.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366042/normal_5f8718079d90e.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367635/normal_5f8e17425574b.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00007131.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00007131.bin)
  • https://cdn.shopify.com/s/files/1/0501/9618/5249/files/salow.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0431/2737/3981/files/convert_non_searchable_to_searchable.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0497/5158/9018/files/wing_clipper_ruler_uk.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0497/9127/1061/files/laputuda.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0432/5031/9528/files/ave_maria_lyrics_latin.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/a57ff5fd-cfca-40b5-a0a0-07e0a32e26fb/96397353017.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/65befd96-1465-4d89-9a55-8195f479a6e7/unity_5_professional_edition_serial.pdfIn PDF document text
  • https://s3.amazonaws.com/rebomedug/petty_cash_book_problems_and_solutions.pdfIn PDF document text
  • https://s3.amazonaws.com/fosagoba/becker_cpa_review.pdfIn PDF document text
  • https://s3.amazonaws.com/wajufifenoxuj/87445539301.pdfIn PDF document text
  • https://s3.amazonaws.com/wibadinavosunom/kidikodufadatisuvujuki.pdfIn PDF document text
  • https://s3.amazonaws.com/ragejufa/miwuboset.pdfIn PDF document text
  • https://s3.amazonaws.com/zuxadol/pares_biomagneticos_dr_goiz.pdfIn PDF document text
  • https://s3.amazonaws.com/jakujakula/38323914501.pdfIn PDF document text
  • https://s3.amazonaws.com/leguvefu/adding_and_subtracting_like_fractions_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 extracted file (font_00_sfnt_off00007131.bin)

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