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=pie+jesu+lyrics+song PDF link annotation

  • https://cdn-cms.f-static.net/uploads/4423750/normal_5f9ccdc394379.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4393029/normal_5f90b722b83f8.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/64f8a657-3ca3-4ab5-b87b-51512d47ac6e/29367972608.pdfIn PDF document text
  • https://deziviw.files.wordpress.com/2020/11/emerson_non_programmable_thermostat_manual.pdfIn PDF document text
  • https://suvarofora.files.wordpress.com/2020/11/95519257918.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/f615a554-397a-49eb-90c9-abefd88b3a14/xikeroxomawefutakafifik.pdfIn PDF document text
  • https://s3.amazonaws.com/moduxanakuri/o_alienista_adaptado.pdfIn PDF document text
  • https://wibebejaboxi.files.wordpress.com/2020/11/75979891970.pdfIn PDF document text
  • https://s3.amazonaws.com/gosete/bamakuxilof.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/2c6cb43f-001c-48c1-9033-48247d5ef72d/ipad_2_16gb_wifi.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/37240cde-79c4-4c79-9861-5d9a043cf52a/35623973198.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/814a58f4-cad6-4e53-bdb6-214321f36ef9/85018901143.pdfIn PDF document text
  • https://nosajal.files.wordpress.com/2020/11/xerawobutuwi.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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