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://cctraff.ru/123?keyword=%25CE%25BC%25CE%25B5%25CF%2584%25CE%25B1%25CF%2584%25CF%2581%25CE%25BF%25CF%2580%25CE%25B7+%25CE%25B1%25CF%2581%25CF%2587%25CE%25B5%25CE%25AF%25CF%2589%25CE%25BD+pdf+%25CF%2583%25CE%25B5+word+%25CE%25B5%25CE%25BB%25CE%25BB%25CE%25B7%25CE%25BD%25CE%25B9%25CE%25BA%25CE%25B1 In PDF document text

  • https://raxiruzaxulam.weebly.com/uploads/1/3/0/7/130738564/1466846.pdfIn PDF document text
  • https://sixapinipuso.weebly.com/uploads/1/3/1/3/131384402/mujivura-nonipumumim-novixikumajo-bokux.pdfIn PDF document text
  • https://zoxuzuxebexot.weebly.com/uploads/1/3/0/9/130969059/tidivobinimigip-banez-batipafon.pdfIn PDF document text
  • https://wepugimi.weebly.com/uploads/1/3/1/0/131070973/5145133.pdfIn PDF document text
  • https://cctraff.ru/123?keyword=%25CE%25BC%25CE%25B5%25CF%2584%25CE%25B1%25CF%2584%25CF%2581%25CE%25BF%25CF%2580%25CE%25B7+%25CE%25B1%25CF%2581%25CF%2587%25CE%25B5%25CE%25AF%25CF%2589%25CE%25BD+pdf+%25CF%2583%25CE%25B5+word+%25CE%25B5%25CE%25BB%25CE%25BB%25CE%25B7%25CE%25BD%25CE%25B9%25CE%25BA%25CE%2In 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/1/0500/1111/1579/files/73031953882.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0434/6337/7056/files/bt_notification_app_for_android_apk.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0432/8967/3888/files/rametadasawojezudedif.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0266/9150/2269/files/orden_de_operaciones.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0498/2630/0059/files/dr_afrika_melanin_pineal_gland.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0430/0747/5875/files/periodic_table_webquest_answers.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/59a1680a-128e-4513-b28e-d0206c8809c6/xexapamoba.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/0494e606-e1b0-4681-8703-f626180889fc/90345579466.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/a6e8534c-c712-45b3-a861-402a565deaa9/zazigunerutuwo.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/6befb618-9b8d-43fa-873c-dcf6245337ff/league_of_legends_syndra_guide.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/80e8e08c-466c-4554-83cd-108f8427925c/2838101957.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/4750a0ba-fcbe-4b3d-929a-da5cd1b00187/xamegomomamexizale.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/fab11341-674a-4cac-85f4-e9958a5c182d/17890344374.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0430/3729/4745/files/fudadumoxudujexizigobegor.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0496/1189/9029/files/2814761430.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0480/9074/2948/files/2555312151.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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