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://gettraff.ru/123?keyword=medical+pathophysiology+book+pdf In PDF document text

  • https://cdn-cms.f-static.net/uploads/4366336/normal_5f873f3072e06.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4372087/normal_5f88bc1549b3e.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368467/normal_5f881e4097fb7.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366010/normal_5f87046a25fb8.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366623/normal_5f89321d2b9be.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off000068da.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off000068da.bin)
  • http://www.daltonmaag.com/In extracted file (font_02_sfnt_off00009edc.bin)
  • https://cdn.shopify.com/s/files/1/0501/5230/8901/files/93376741511.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0432/9229/5333/files/first_day_loan_login.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0482/7591/4913/files/five_little_pigs_agatha_christie.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0429/3545/1804/files/hua_xia_chinese_school_houston.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0482/8990/6852/files/vinafebepepidoluzigisi.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0437/8073/5138/files/12016660897.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0497/9949/5842/files/33789809071.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0484/2186/3582/files/zelokitisanazodivupitun.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0436/0096/9890/files/41478649416.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0434/4466/6529/files/95683422178.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0500/0075/6891/files/65490603248.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0431/0728/7206/files/63725524153.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0483/6913/9872/files/rccg_digging_deep_lesson_127.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0430/8199/0293/files/phu_quoc_tourist_map.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_off000068da.bin)

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