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://ggtraff.ru/aws?keyword=pokemon+go+download+apk+ios In PDF document text

  • https://cdn-cms.f-static.net/uploads/4402717/normal_5f982699b5d02.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4378852/normal_5f92703d8f076.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4419433/normal_5f9cda6b84d5e.pdfIn PDF document text
  • https://midazumetewafaj.weebly.com/uploads/1/3/4/2/134266273/linazuzamelum-veromevoti.pdfIn PDF document text
  • https://vawotitalu.weebly.com/uploads/1/3/2/7/132710714/wikodo_zufem_konujirulobuji.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4370307/normal_5f89f984a858d.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/7f69b5a2-943d-45cc-af81-6c62986957ba/tekuwodifojow.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0500/4515/7529/files/quartz_crystal_microbalance.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/6703e416-401f-4421-b823-7ba900131f19/27027583145.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/84da53e4-6d22-4a15-835a-e2cb7a762d86/71354280875.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/cd008dd9-bebf-4f8f-a470-0d68fd63c236/66156955268.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/5c2e5aa6-0f5d-481f-8329-01ace64731ad/15102000641.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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