Malicious PDF — malware analysis report

Heuristics 5

• 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.
• External URI info PDF_URI
  PDF contains an external URL action
• 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://trafficel.ru/wb?keyword=ozark%20trail%20air%20mattress%20parts PDF link annotation

  • https://zakewurez.weebly.com/uploads/1/3/4/4/134471700/selelitesaxal_novinunisolube_xidibotibus_sujisiwokogiv.pdfIn PDF document text
  • https://jimigafekalese.weebly.com/uploads/1/3/1/4/131407537/a5da8a74.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4373520/normal_5f8db46335adf.pdfIn PDF document text
  • https://bewapuvin.weebly.com/uploads/1/3/1/4/131453684/rowom.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/8d754bda-bb60-4c42-8aaa-8b46555dcd89/wearever_gold_ceramic_brake_pads_reviews.pdfIn PDF document text
  • https://s3.amazonaws.com/padoragog/86015275551.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/3fff8109-e901-41a8-8fd8-edfb7f36e8cd/11905656009.pdfIn PDF document text
  • https://s3.amazonaws.com/divelatoxa/pw_atkins_physical_chemistry_6th_edition.pdfIn PDF document text
  • https://s3.amazonaws.com/penefelomiju/levoponuguzix.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1ecfe368-07a0-467a-a0b5-860aa34c45be/96310084581.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/c9d046d1-cc58-4709-91d8-bb69b26d5128/61112365119.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ad826a5d-d162-4b4e-b9ab-58114046e79f/46569955269.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/b0b1e62d-011b-4968-b8a4-3ede770af849/762078728.pdfIn PDF document text
  • https://s3.amazonaws.com/fajixe/tukokibarodagaja.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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