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://trafffe.ru/aws?keyword=lg+smart+tv+remote+app+apk PDF link annotation

  • https://rozazokosu.weebly.com/uploads/1/3/0/8/130813972/3541887.pdfIn PDF document text
  • https://gimunoje.weebly.com/uploads/1/3/4/3/134344093/godupelijuvabe.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://wupolekofajo.files.wordpress.com/2020/11/66061233621.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/a3580f2b-83b3-44d2-b563-522f6eb85244/mumiliju.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/01119fea-c2b8-45db-a624-63360dcee07b/windows_server_fundamentals.pdfIn PDF document text
  • https://vuvovugevuvo.files.wordpress.com/2020/11/46306918075.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e56cd6f6-b7c7-44cf-bb12-45b61fd04a1c/2011_chevy_cruze_manual_transmission_fluid.pdfIn PDF document text
  • https://s3.amazonaws.com/faluzotixupi/nascar_2019_schedule.pdfIn PDF document text
  • https://s3.amazonaws.com/rerinago/34293891012.pdfIn PDF document text
  • https://sazajade.files.wordpress.com/2020/11/97747835554.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/86b6cdab-898a-4770-b279-73636632e46e/aquatech_5_15.pdfIn PDF document text
  • https://s3.amazonaws.com/libeganot/dukubifimokavabuxas.pdfIn PDF document text
  • https://s3.amazonaws.com/mawesenasijoser/kumuruvamupovejutizazebum.pdfIn PDF document text
  • https://s3.amazonaws.com/fekaduvopigab/translate_to_english_word.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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