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://traffset.ru/aws?keyword=jessica+harder+sterling+co PDF link annotation

  • https://cdn-cms.f-static.net/uploads/4389090/normal_5f9c1ef3d45ed.pdfIn PDF document text
  • https://suxifobafip.weebly.com/uploads/1/3/4/3/134370270/madupogufovumafexoz.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4383699/normal_5f9e6ae8c8955.pdfIn PDF document text
  • https://dojumavuj.weebly.com/uploads/1/3/3/9/133997280/fafox-lurazirobap-tutonibojeduk-bikafojafabu.pdfIn PDF document text
  • https://mabudorowux.weebly.com/uploads/1/3/4/4/134458492/6c76f7a.pdfIn PDF document text
  • https://lifesodoxeduze.weebly.com/uploads/1/3/4/3/134372712/ginez.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/a16a980d-2fc7-4169-b03c-8710c6b2fb92/37190801869.pdfIn PDF document text
  • https://s3.amazonaws.com/mipeboro/crossword_puzzles_for_seniors.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1280b1d9-668e-4951-820d-9d4c308d0aa2/data_flow_diagram_explained.pdfIn PDF document text
  • https://s3.amazonaws.com/povodijirig/which_two_domains_are_most_closely_related.pdfIn PDF document text
  • https://s3.amazonaws.com/mijedusovineti/solodazuluvuj.pdfIn PDF document text
  • https://s3.amazonaws.com/retobifulipo/zemov.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/20ba4801-5237-473a-ad35-b4d2bc752c8f/wibam.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/8e0583ac-7cbd-4362-9bb6-5ccbe673a97e/duzitenozatigi.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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