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://trafftec.ru/aws?keyword=what+is+another+example+of+a+complex+machine PDF link annotation

  • https://cdn-cms.f-static.net/uploads/4378843/normal_5fa19c9d9bffd.pdfIn PDF document text
  • https://xujaxivef.weebly.com/uploads/1/3/1/4/131438557/vazasagitute-rojanavivevaj-vazil.pdfIn PDF document text
  • https://bubixoduxufito.weebly.com/uploads/1/3/1/0/131070588/37610.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/bce69d93-8c67-4877-850a-faf894450e12/bare_necessities_trombone_sheet_musi.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/23cc825e-eec3-4715-8813-58b6073e9716/bluetooth_app_for_laptop_windows_10.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/66ff480a-483a-4516-85f3-32e0a295a1e6/pidojelapo.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e8e40b45-9045-4c56-9c7b-fc823c6a00ec/43931291638.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/926334c0-42b6-44fc-b67f-7af47d012c3f/61843845554.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/63e11512-d840-46d1-b83c-4d98e084994f/14500908984.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ba74a21e-9668-44d3-b1d0-e0e6f52dd7bf/lipozene_commercial_tv.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/cb08e8ac-3b2f-47d1-a021-15f86e7ce82b/citroen_c8_manual.pdfIn PDF document text
  • https://jivibizi.files.wordpress.com/2020/11/power_suit_samus.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/226abcfa-1a9a-4cb4-9382-438d97687ab0/64156011875.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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