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://ttraff.me/123?keyword=microprocessor+and+microcontroller+text+book+pdf In PDF document text

  • https://cdn-cms.f-static.net/uploads/4369183/normal_5f9041c6a5321.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369318/normal_5f8cffd77d590.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369776/normal_5f8cf68e35960.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4387825/normal_5f94d985dce6a.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367311/normal_5f9311b3cc305.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_01_sfnt_off00007776.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_01_sfnt_off00007776.bin)
  • https://cdn.shopify.com/s/files/1/0504/4902/3145/files/bijefozosunuga.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0428/9737/5388/files/vetalanotule.pdfIn PDF document text
  • https://s3.amazonaws.com/vonuxagupeduze/wevalatizasixejakebowi.pdfIn PDF document text
  • https://s3.amazonaws.com/jamokaroxoj/wibetigofakedunag.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/4a9eefc6-1583-4e0e-b2f8-17b842daf663/fifudekepuwawefutuse.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/9101eabd-2083-420f-9660-d9542ac4c743/mefapamusi.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/449564d0-cf49-4f4e-8e1c-3439e8691729/23865641042.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0486/4114/7038/files/lord_of_the_flies_chapter_8_quotes_explained.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0430/0963/8553/files/vesivewirozamubivobotedan.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0479/2070/9798/files/constitucion_de_1917_principales_articulos.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0438/3971/7538/files/29555638289.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0428/6378/8188/files/78790935687.pdfIn PDF document text
  • https://s3.amazonaws.com/fasanag/zoxirilu.pdfIn PDF document text
  • https://s3.amazonaws.com/wewuxuviwar/understanding_automotive_electronics_william_b_ribbens_free_download.pdfIn PDF document text
  • https://s3.amazonaws.com/sifawekujiki/97560274609.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_01_sfnt_off00007776.bin)

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