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://trafficel.ru/aws?keyword=pubg+mobile+mod+apk+latest+version PDF link annotation

  • https://cdn-cms.f-static.net/uploads/4372740/normal_5f8962a3a10fa.pdfIn PDF document text
  • https://tipefejiri.weebly.com/uploads/1/3/0/9/130969755/sofiwibipul.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4386620/normal_5f9df79aebf91.pdfIn PDF document text
  • https://tanifovekula.weebly.com/uploads/1/3/1/3/131379991/1b5011c4.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4381344/normal_5f9684cfa7f6c.pdfIn PDF document text
  • https://xilorufanil.weebly.com/uploads/1/3/0/7/130739938/e1a5eb6de1a62.pdfIn PDF document text
  • https://kagilovudugavap.weebly.com/uploads/1/3/1/1/131164538/4119082.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366623/normal_5f8c5b4badeb5.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4387709/normal_5fa41a7a47dae.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/ecc472b0-1f00-42c1-ac99-2d39a906188d/boxazavir.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/7bb99c2b-f47d-424b-8ece-f24f5b7ed234/7570453481.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ac07b2b5-7a17-44aa-a201-239cfa9647e9/65391035491.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/f30366fb-a633-45c3-a98a-e27aadf09942/lixawuzakawolari.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/0e0a77a8-24f2-43f8-ba78-c35c4a9ed777/suginetike.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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