Malicious PDF — malware analysis report

Heuristics 6

• 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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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=up+board+intermediate+time+table+2020+pdf In PDF document text

  • https://cdn-cms.f-static.net/uploads/4367951/normal_5f8754474b3eb.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369168/normal_5f88c7e0d8d14.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368758/normal_5f88f351467a2.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366958/normal_5f8766b5b16f3.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4371509/normal_5f88ffa3b982b.pdfIn PDF document text
  • https://xodetawutal.weebly.com/uploads/1/3/0/7/130774968/1dd88742452b.pdfIn PDF document text
  • https://dutitujazekap.weebly.com/uploads/1/3/0/8/130814390/f9007.pdfIn PDF document text
  • https://jatorogerujew.weebly.com/uploads/1/3/2/7/132710569/bawap.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368229/normal_5f88c9b47f618.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368751/normal_5f881461e1dc4.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • http://fedorahosted.org/lohitIn PDF document text
  • https://cdn.shopify.com/s/files/1/0436/8164/4697/files/engagement_ring_quiz_the_knot.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0485/9851/5872/files/53950217064.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0481/6738/7303/files/chapter_9_review_worksheet_cellular_respiration_crossword_puzzle_answers.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/3bf844b6-4cc1-4388-8493-f1f0790cfa8a/kosatokiketokutaxolaler.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e5dc4324-4406-43ee-a3fc-b6b2624d9bb9/motutef.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e1b538a6-8441-4fd5-8723-7058d7241ebc/jesebusewij.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e1b6d272-41e8-4564-b9a8-e6a6e224d578/vesuselegevikizafewubato.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/d9cbf9e5-7a90-4275-8a60-90fb31276083/juxibenu.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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