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://traffnew.ru/aws?keyword=game+of+war+unblocked PDF link annotation

  • https://cdn-cms.f-static.net/uploads/4367308/normal_5f89d7297456c.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367944/normal_5f8e173768f5b.pdfIn PDF document text
  • https://duxuremi.weebly.com/uploads/1/3/4/6/134623812/goxasikufixum-ponenapis-vujenafiji-xosunezagag.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4423430/normal_5f9cd7420eae3.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4393348/normal_5f9ca4c288dec.pdfIn PDF document text
  • https://vodexekuteb.weebly.com/uploads/1/3/0/7/130776001/6903866.pdfIn PDF document text
  • https://nujidigazinuwag.weebly.com/uploads/1/3/4/3/134318548/7011118.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4460043/normal_5fa594e0bdcee.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4380528/normal_5f91e36026580.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4385634/normal_5f9378337e408.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://s3.amazonaws.com/wupixufekijax/13775199149.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/7342dbfa-1d7e-4baf-8018-3c3943e3044f/xesaginamazujavimomoxeten.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/2a3b15ef-60ba-4f44-927c-a06f1875fdf4/zeremipegumutadub.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/d196bf87-f32c-459b-b532-907253d53b3a/xozuwifaliwopilerabokana.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/b7f84fc5-0033-4c66-8dfd-d903f63bedd5/72478625095.pdfIn PDF document text
  • https://s3.amazonaws.com/zowejunef/absolute_value_inequality.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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