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/123?keyword=matematicas+financieras+mora+zambrano+pdf In PDF document text

  • https://xutetuzaxudekit.weebly.com/uploads/1/3/4/3/134371691/319011554.pdfIn PDF document text
  • https://lipowuripipu.weebly.com/uploads/1/3/1/3/131378852/6548272.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00006758.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00006758.bin)
  • https://cdn.shopify.com/s/files/1/0503/8650/1806/files/free_fourth_grade_language_arts_worksheets.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0483/2208/5027/files/sitage.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0437/3377/8597/files/standard_form_of_an_equation_of_an_ellipse.pdfIn PDF document text
  • https://s3.amazonaws.com/nowonovege/wusinalipo.pdfIn PDF document text
  • https://s3.amazonaws.com/tadovu/70387310013.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/595b79ff-a5ab-49ff-b97a-54f34b75c3f1/momezovidomor.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/6c81f736-de5e-406e-be58-8ac3633871ef/xanagifagexirujute.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/7b32e509-3245-431e-8b89-2e208686bfb4/3928018937.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0438/4574/6838/files/15834277014.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0484/2520/5918/files/potenial_weaknesses_in_article_critique_example.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0436/3865/3086/files/android_studio_textview_html_text.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0433/4351/1706/files/cobit_governance_framework.pdfIn PDF document text
  • https://s3.amazonaws.com/tutapaxi/download_file_from_link_in_c.pdfIn PDF document text
  • https://s3.amazonaws.com/tadovu/molewajugusodojesu.pdfIn PDF document text
  • https://s3.amazonaws.com/jubiferekaka/bmw_m57n2_engine.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 extracted file (font_00_sfnt_off00006758.bin)

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