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://cctraff.ru/aws?keyword=php+7+data+structures+and+algorithms+pdf In PDF document text

  • https://bemogipe.weebly.com/uploads/1/3/4/3/134379528/2f159489e34.pdfIn PDF document text
  • https://malinozibide.weebly.com/uploads/1/3/4/3/134380659/1655450.pdfIn PDF document text
  • https://lotagixowila.weebly.com/uploads/1/3/1/1/131164100/0bced5e92f7688.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4389365/normal_5f920c8c90bfc.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4407804/normal_5f944aa623741.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4386091/normal_5f8e6d9fc95da.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4411696/normal_5f960fb95a8ae.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368998/normal_5f89fcbd1475d.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00006fcb.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00006fcb.bin)
  • https://uploads.strikinglycdn.com/files/fafc6fd4-2a6c-4339-9333-b2bf7cbe752f/kumudimisowoxale.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1a4d3645-a33c-4d6e-8c7a-5ae817cd38c6/golixazipogoduloxoru.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/71763e2c-3591-442a-b7f6-0a83cf030018/62078573338.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/b4f139b8-2e0c-4570-ba18-736d6400d622/28345566222.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/99b42d19-090f-49c7-9233-448e25491686/the_farm_movie_2018.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0268/8247/4163/files/rejavoxid.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0432/8167/8494/files/circle_of_lights_minnesota.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0483/9256/8983/files/kederasizojuzawi.pdfIn PDF document text
  • https://s3.amazonaws.com/leguvefu/50856865538.pdfIn PDF document text
  • https://s3.amazonaws.com/felasorarabipis/tifamenasukun.pdfIn PDF document text
  • https://s3.amazonaws.com/votawawo/pepikotokor.pdfIn PDF document text
  • https://s3.amazonaws.com/sugaguxagu/brahmastra_book.pdfIn PDF document text
  • https://s3.amazonaws.com/miwolezedubujoz/pdf_to_word_converter_app_free_download.pdfIn PDF document text
  • https://s3.amazonaws.com/jakujakula/20755929745.pdfIn PDF document text
  • https://s3.amazonaws.com/fezenur/87423444347.pdfIn PDF document text
  • https://s3.amazonaws.com/rawesaragegugar/gcse_algebra_questions.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://dejavu.sourceforge.netIn extracted file (stream_005_off0000a958.bin)
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (stream_005_off0000a958.bin)
  • http://scripts.sil.org/OFLIn extracted file (font_00_sfnt_off00006fcb.bin)

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