Malicious PDF — malware analysis report

Heuristics 4

• 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.
• 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://cctraff.ru/pify?keyword=answer+file+msi+package In PDF document text

  • http://kadodevi.adelantechc.org/uploads/1/3/2/6/132682878/siwiruba-lebuduj-bunibuzowiwo-vofuxa.pdfIn PDF document text
  • http://files.gvg-org.ch/uploads/1/3/0/8/130813554/6fd3ec27f.pdfIn PDF document text
  • http://dedizi.crossfitstallings.com/uploads/1/3/0/7/130739393/jabepurutolamu_bijaw.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://cdn.shopify.com/s/files/1/0481/9704/2333/files/organic_chemistry_brown_iverson_8th_edition.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0479/4194/3463/files/44668023788.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0429/1916/6119/files/zusovujar.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0499/9918/4022/files/what_is_cycling_cyclocross.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0493/8851/9586/files/strange_women_lying_in_ponds_2020.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0484/8133/7506/files/johnson_burke_plumbing_sherman_texas.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/b53d8fef-bb56-4c11-ba36-bd8047c306ae/64228626746.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/078d6c41-14ce-4917-ab87-54f2fa943500/51135628436.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/c675f20c-e70f-4e45-ad55-a85028d8096f/vagodupukamegexaxan.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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