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://ttraff.me/wix?keyword=muppet+with+red+mustache In PDF document text

  • http://files.darkersmathhub.com/uploads/1/3/0/9/130969879/be722e4.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://aacbd4f1-05cf-40c0-a2d2-6be1a62b96df.filesusr.com/ugd/b85eb0_e3182c0b73cf49868d4ba088890f272f.pdf?index=trueIn PDF document text
  • https://41c09ace-3e36-4763-bd2f-1f4e503587e1.filesusr.com/ugd/6908d7_82669b4797d2499e961b8a80990940a8.pdf?index=trueIn PDF document text
  • https://e420843c-8515-4cc4-80a9-8ed1b1ff989a.filesusr.com/ugd/dcc11b_0973720a97044c98b892c00aff12fbf3.pdf?index=trueIn PDF document text
  • https://cdn.shopify.com/s/files/1/0454/3309/4312/files/41605083479.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0441/4255/9384/files/archer_c7_vpn_performance.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0438/0845/6861/files/basic_cooking_terms_answer_key.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0437/4321/5767/files/proving_quadrilaterals_are_parallelograms_worksheet_answers.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0433/3348/4702/files/jesu_bleibet_meine_freude_organ_sheet_music.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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