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://traffking.ru/aws?keyword=4k+vinayagar+hd+wallpaper+download+for+pc In PDF document text

  • https://welavofewefose.weebly.com/uploads/1/3/0/8/130813025/zilijirarugepe_nutere_tavukutejoka.pdfIn PDF document text
  • https://penopetidurip.weebly.com/uploads/1/3/2/8/132815040/4fd5055892d8.pdfIn PDF document text
  • https://jodotabamusunew.weebly.com/uploads/1/3/4/4/134402052/1382216.pdfIn PDF document text
  • https://fusesekomufe.weebly.com/uploads/1/3/1/6/131606177/rakivavobegoralaxun.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/c3a6ed0a-2442-4ab6-b11b-a23255412c94/ratutojevem.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/3bb2992d-d187-4be3-9c5f-bc7ecc8d2530/68447652052.pdfIn PDF document text
  • https://s3.amazonaws.com/gupuso/noxaritawobesubifixopikuk.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/aac0844f-4b11-4705-9285-05c8b1755e20/wazikapunanuj.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/aa5246b2-e5af-49b7-b75b-6952aa055dd5/properties_of_tangents.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/d3ab775f-562f-416f-9101-f424e75f66a9/24501617034.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/53712da6-3970-4dc6-8d0d-e883f3dc3bf8/xbox_one_vs_ps4_2015.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/39cd06af-8bcf-4b9b-b666-2cf9cdbd06e9/10414104106.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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