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://ggtraff.ru/aws?keyword=how+to+make+a+histogram+in+google+sheets+2019 In PDF document text

  • https://cdn-cms.f-static.net/uploads/4380858/normal_5f9b172de4967.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365612/normal_5f8ce97fae7d1.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4379611/normal_5f8baf213f2d5.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367622/normal_5f8e017dc6184.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4372399/normal_5f9601e04716c.pdfIn PDF document text
  • https://nubawobadeg.weebly.com/uploads/1/3/4/1/134131997/4ec21.pdfIn PDF document text
  • https://kiteginizi.weebly.com/uploads/1/3/1/8/131871518/8e9cd5.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/1/0431/0417/4246/files/molon_labe_decal_jeep.pdfIn PDF document text
  • https://s3.amazonaws.com/zirojopemup/99423733615.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0495/7565/7624/files/fixed_end_moments_table.pdfIn PDF document text
  • https://s3.amazonaws.com/kavitokolezub/simplicity_sewing_book.pdfIn PDF document text
  • https://s3.amazonaws.com/bisegilupuf/pukasisaxasiso.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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