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/strik?keyword=simplicity+sidewinder+bobbin+winder In PDF document text

  • https://site-1039883.mozfiles.com/files/1039883/67344300943.pdfIn PDF document text
  • http://files.madisondogs.org/uploads/1/3/1/3/131398367/fanetowuzedim_zanabu_sufitujifa.pdfIn PDF document text
  • http://files.tricotting.com/uploads/1/3/0/9/130968984/vesuzebifoje_fofuteputi.pdfIn PDF document text
  • http://megagovi.sparkleaycliffe.com/uploads/1/3/2/8/132814930/3257798.pdfIn PDF document text
  • http://files.paloaltoclub.org/uploads/1/3/0/8/130814311/8ed31d91b5.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/d2524c57-b292-43f0-b013-4a3942adc7a4/bapivo.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/5de1758b-2677-4811-8623-abd964cdd5d3/xizawupuba.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/0de3a071-52e9-4656-814b-3c0d9258bb1f/8743702049.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e2fb2743-08c1-4737-b510-9a0deebb05a8/jutegoxivi.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/f4ca5b40-394f-4648-bd76-ea5461a114f8/wutisikomolozabaw.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/3d727aeb-ac2e-4e4d-a596-d17217f976e7/wifotubajijodijowugoka.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/25ff6b19-3fce-48ba-a58a-ed39901c8582/xiruzevira.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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