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://traffmen.ru/123?keyword=the+sims+freeplay+apk+mod In PDF document text

  • https://sabadefupi.weebly.com/uploads/1/3/4/3/134345863/6107723.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4379968/normal_5f8b11ed2471e.pdfIn PDF document text
  • https://zoveponezewuda.weebly.com/uploads/1/3/0/7/130738822/7093334.pdfIn PDF document text
  • https://buveziketi.weebly.com/uploads/1/3/1/3/131398526/97a9345d3ada7c2.pdfIn PDF document text
  • https://razezoxuwen.weebly.com/uploads/1/3/1/4/131453099/sovovos.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4382187/normal_5f92cb44eb32d.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4384470/normal_5f8d877866f78.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/05a110b2-6d91-4083-b5fe-a3f944da4374/30849086326.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/0c9b153c-7447-46f1-8d41-ac3a7750cfcb/lukosi.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/c735aab9-952d-4314-8bc6-35ff4f20787a/50546415974.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/3147a348-f74c-40b0-9af6-7f4c7178db32/xonidusozodusajifapadu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/318556a9-de28-4191-b968-753a05b37ce0/81428547156.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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