Malicious PDF — malware analysis report

Heuristics 5

• PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
  PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
• 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.
• 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://gettraff.ru/wb?keyword=archivos%20pdf%20a%20jpg In PDF document text

  • https://cdn-cms.f-static.net/uploads/4385424/normal_5f94b2d36f19b.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369520/normal_5f883573a83c4.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368229/normal_5f886907a870a.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4373778/normal_5f90bfece1b7c.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366957/normal_5f8c38dec3e30.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369524/normal_5f89eaf85a6b0.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://cdn.shopify.com/s/files/1/0497/4415/0689/files/bare_area_of_liver_names.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0434/3870/2748/files/faxelizufozurap.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0437/8587/9704/files/nepik.pdfIn PDF document text
  • https://s3.amazonaws.com/fapaga/fotafaxugifepunavud.pdfIn PDF document text
  • https://s3.amazonaws.com/fojaxexino/sasusuxuxukodawevi.pdfIn PDF document text
  • https://s3.amazonaws.com/fowikorejodi/the_economist_july_2018_download.pdfIn PDF document text
  • https://s3.amazonaws.com/migivewuwe/kupobavizutonedotoge.pdfIn PDF document text
  • https://s3.amazonaws.com/suximawo/bernoulli_s_energy_theorem.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/3d0cd599-71a3-4df6-bca5-90946405adf5/mingle2_exe_download_for_pc.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/36187733-be7f-4c8d-a615-d0322dacd9f1/voniba.pdfIn PDF document text
  • https://s3.amazonaws.com/bulolimepol/topigoduji.pdfIn PDF document text
  • https://s3.amazonaws.com/rimepusox/architecture_floor_plan.pdfIn PDF document text
  • https://s3.amazonaws.com/jidosatikim/poruziwipemonazipuxeruf.pdfIn PDF document text
  • https://s3.amazonaws.com/subud/60332762844.pdfIn PDF document text
  • https://s3.amazonaws.com/gupuso/biblical_theology_of_leadership.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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