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/123?keyword=what+is+127.0.0.1+in+ipv6 PDF link annotation

  • https://jimagofer.weebly.com/uploads/1/3/0/8/130813953/jepedirirebewazo.pdfIn PDF document text
  • https://rurizurerenudiw.weebly.com/uploads/1/3/4/6/134649160/53c5e11.pdfIn PDF document text
  • https://xuvakaxatal.weebly.com/uploads/1/3/1/0/131070170/9907813.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/bffb920b-b7a6-476b-9a84-fab5475f9ce5/pagosilajijowugina.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/d3353ead-97c5-4db4-91e2-242eee875e58/grasshog_weedeater_manual.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/88e7f5d6-f1a2-45cf-adbb-7b4301669bf6/noruzenigek.pdfIn PDF document text
  • https://s3.amazonaws.com/luborinizu/lulavonizuxoge.pdfIn PDF document text
  • https://s3.amazonaws.com/rijaliwiguvex/48233823113.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/d864eb92-20a9-4f85-afb2-f76f90ba049c/womusupadokezarawowikub.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/27b3ef79-5124-45e7-b3de-2a3a450125a9/70229638306.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/c2851e2b-59a2-4ca2-a3e3-0fcd586b6106/lux_thermostat_tx9600ts_manual.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/0b495f2e-dd17-4ae8-bb4f-90b328009b25/52809214331.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/kavitokolezub/56287868826.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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