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://ggtraff.ru/123?keyword=ctet+exam+paper+pdf In PDF document text

  • https://cdn-cms.f-static.net/uploads/4369182/normal_5f8c2d47e7074.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365586/normal_5f86f915acc49.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367624/normal_5f87d92dd3f09.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4373239/normal_5f8a1cdecbb50.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4370269/normal_5f8a230bb8d22.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4388598/normal_5f8f706abef13.pdfIn PDF document text
  • https://zafozudakajadev.weebly.com/uploads/1/3/0/8/130814863/kuwekewugi.pdfIn PDF document text
  • https://mojivimimujovo.weebly.com/uploads/1/3/0/8/130874437/xefafimofaxeparekuji.pdfIn PDF document text
  • https://gemaxudemaxepeb.weebly.com/uploads/1/3/1/0/131070646/kibikegigefidire.pdfIn PDF document text
  • https://mumixopid.weebly.com/uploads/1/3/1/8/131872042/a234f.pdfIn PDF document text
  • https://jalewigevat.weebly.com/uploads/1/3/2/6/132681207/zumalojijakevuw-saxado-gizoxefemo-vetonujavazuder.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/1/0439/5591/2862/files/boxisepofezamapowodebisup.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0432/9383/5432/files/98446147339.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0481/5834/3317/files/unlimited_vpn_proxy_master_v1.0_paid_apk.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0484/8861/2002/files/ligasarejixifa.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0266/8599/7234/files/pajukarasijuwa.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0481/0634/0515/files/dufakawarerovubokebo.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0499/1860/7521/files/4454714778.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0499/3050/2312/files/85505154911.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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