Malicious PDF — malware analysis report

Heuristics 4

• 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.
• 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/strik?keyword=third+conditional+exercises+pdf+esl+library In PDF document text

  • http://viwaviw.apriest.com.au/uploads/1/3/1/4/131437919/sufamesafin.pdfIn PDF document text
  • http://files.bellamcbride.ca/uploads/1/3/0/7/130776152/lamapusiv.pdfIn PDF document text
  • http://zuwugul.nhconstructionlaw.com/uploads/1/3/1/3/131398036/485762dea.pdfIn PDF document text
  • http://files.travelsuitsyou.net/uploads/1/3/0/7/130740536/6f250517d9afb.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/d729a5ed-0f56-4adb-b2a1-b933097b56f6/90675946286.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/5866a3ca-c4e0-423e-8a99-12cf675c515f/3865199893.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/848c466b-d35b-4a91-9b84-94f79cac3530/21066750833.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/51876e51-3436-480e-910c-9a0ffb01f160/wefegasisibexo.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0430/7710/7865/files/fatebopizabepepaw.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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