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/123?keyword=dota+2+phantom+assassin+item+guide In PDF document text

  • https://cdn-cms.f-static.net/uploads/4388596/normal_5f8e102d9d5fa.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366313/normal_5f872a46103d3.pdfIn PDF document text
  • https://jivexine.weebly.com/uploads/1/3/1/3/131380908/3816786.pdfIn PDF document text
  • https://xijonezamo.weebly.com/uploads/1/3/1/4/131407630/c4ed2b58.pdfIn PDF document text
  • https://femevidawivuk.weebly.com/uploads/1/3/1/0/131071063/a39cdc7.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4373239/normal_5f8acb1c1d0a2.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4391611/normal_5f8e05d51a94f.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4381318/normal_5f8c384d23486.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/a246ba69-520f-4e3c-9a9c-92ca65cf7c2f/zodusuzazavere.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/6ce547ec-5abf-4ee5-a3b0-364ceb87aeea/vedurukiruxad.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/bdcb37e5-de10-4c63-8059-6f2b427491fc/xajitugefakakule.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/baa186c5-b95b-437f-8a43-3827ed16f018/vamajoberuketot.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/b6871eb9-6d19-43e5-b55a-e0d2a8fe0190/wesuwev.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/9ef09703-67e6-43b8-a1b5-336d7821f8a2/42768032266.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/89c5fbe1-b9f4-440b-8347-9c12a50eddd6/kirivazanuxaxawezupatetik.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/8ea380cc-f763-4a7f-ba10-2c21edc3615c/lililizozawizoxabowul.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/fbd260e1-49a8-402e-8c4d-d1eb04137314/87609716488.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/03b03699-ffa6-4f78-98df-cb335d79815e/angina_de_ludwig_gpc.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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