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/strik?keyword=autumn+leaves+trumpet+sheet+music+pdf In PDF document text

  • https://site-1036834.mozfiles.com/files/1036834/vonutezum.pdfIn PDF document text
  • http://movelosem.bntarms.com/uploads/1/3/0/8/130814058/fixuzivu.pdfIn PDF document text
  • http://files.springwindlabradors.com/uploads/1/3/0/7/130776393/72e545ae.pdfIn PDF document text
  • http://nutiledo.bidellnow.com/uploads/1/3/1/4/131438096/3155101.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://uploads.strikinglycdn.com/files/0197f95b-f46a-43bf-8f5b-5ccdee42abfe/xiwopezob.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/073d413a-96f4-40eb-b4e0-19cd21f85b4c/muxinebaxaje.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/b13aa0cd-5923-417c-9bca-42e603855c01/52521960203.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0429/0936/8476/files/passive_voice_continuous_tense_exercises.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0432/0083/9842/files/apocalypse_world_2nd_edition_download.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0434/3722/8188/files/xudokukimitisukifugimum.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0430/3529/5905/files/it_asset_inventory_template_xls.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0461/9436/0469/files/safety_incident_investigation_report_writing.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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