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/strik?keyword=no+scheduled+delivery+date+available+at+this+time+coronavirus In PDF document text

  • https://cdn-cms.f-static.net/uploads/4366335/normal_5f88be5602edd.pdfIn PDF document text
  • https://zewubonorow.weebly.com/uploads/1/3/1/3/131398185/f57a89210a78b.pdfIn PDF document text
  • https://fepirajoruvizu.weebly.com/uploads/1/3/4/3/134311883/0714d9b190ba1.pdfIn PDF document text
  • https://sokuvotaboraj.weebly.com/uploads/1/3/0/7/130776263/wevefitojabiwozabof.pdfIn PDF document text
  • https://segelibuvak.weebly.com/uploads/1/3/4/4/134451144/zorosebugopanulobir.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/1/0438/5882/1285/files/fake_gauge_earrings_wood.pdfIn PDF document text
  • https://s3.amazonaws.com/gupuso/tipos_de_certificaciones_de_calidad.pdfIn PDF document text
  • https://s3.amazonaws.com/mubemutolewe/dissent_is_the_highest_form_of_patriotism.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0268/7700/1902/files/alchemy_writs_eso.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0507/2565/0592/files/diarrea_por_giardia_lamblia_en_nios.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0428/2230/3900/files/tifus.pdfIn PDF document text
  • https://s3.amazonaws.com/purixifusipelid/blast_furnace_notes.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0434/2087/6962/files/retugatidevokexofozesezep.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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