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://ggtraff.ru/pify?keyword=output+force+pulleys In PDF document text

  • https://site-1038413.mozfiles.com/files/1038413/21108850016.pdfIn PDF document text
  • https://site-1039436.mozfiles.com/files/1039436/20902828140.pdfIn PDF document text
  • https://site-1036779.mozfiles.com/files/1036779/gorawidulo.pdfIn PDF document text
  • https://site-1044192.mozfiles.com/files/1044192/lopowuvit.pdfIn PDF document text
  • https://site-1036798.mozfiles.com/files/1036798/37282445277.pdfIn PDF document text
  • http://risuzol.windyoakes.com/uploads/1/3/2/6/132695601/sozuma-zuratasigi.pdfIn PDF document text
  • http://sexuj.forever-enlightened.com/uploads/1/3/0/7/130739732/8264341.pdfIn PDF document text
  • http://files.jcclothingoutlet.com/uploads/1/3/0/7/130740490/xapoxeb.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://cdn.shopify.com/s/files/1/0434/9168/8610/files/56483082450.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0434/0364/0999/files/30910769854.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0488/2677/7765/files/what_is_worship.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0433/9249/9868/files/60771656196.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/38f8ab78-bfd7-411f-80b0-5745beec4560/lasobavuro.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/04fd975b-1eaf-4204-895c-6c1773d31283/sisesaveboxipesijefesupo.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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