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=ap+transport+llr+test+questions+in+telugu+pdf In PDF document text

  • https://cdn-cms.f-static.net/uploads/4369632/normal_5f9671f1f1448.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4384640/normal_5f8ca5f21736c.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4404984/normal_5f91c9912bd2b.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00005958.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00005958.bin)
  • http://fedorahosted.org/lohitIn extracted file (font_01_sfnt_off00006b6d.bin)
  • https://uploads.strikinglycdn.com/files/aa30b60a-23cf-4ee4-b001-10507a3f83c1/wodoxe.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ee4c40a4-a6c0-4344-9e3d-da86fbe044c0/xokigedewenujemepowaguje.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/13d05894-fc65-4485-a530-613448540aef/14694624963.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/8863eb2e-2c38-4635-953e-eba28473574e/narurow.pdfIn PDF document text
  • https://s3.amazonaws.com/taturi/digital_marketing_interview_questions_2018.pdfIn PDF document text
  • https://s3.amazonaws.com/zuxadol/69177410083.pdfIn PDF document text
  • https://s3.amazonaws.com/wipotegadodorek/biophysical_chemistry_upadhyay_free_download.pdfIn PDF document text
  • https://s3.amazonaws.com/henghuili-files2/associative_learning_theory.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0503/7113/3597/files/free_download_brave_browser_for_android.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0432/7650/1148/files/fagofupurovijukijix.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0486/0274/2952/files/cse_2221_schedule.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0499/6867/7016/files/5924180377.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0495/4721/5000/files/kasud.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/46ce4ca2-8b5b-4f2e-9899-80dba6b2e2bb/40722364183.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/2d1a5f40-8f1b-4609-b394-1fc7500c717a/7035199483.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/6dae402e-3fdb-4235-8813-f7aa5fd8ed76/dategisazel.pdfIn PDF document text
  • https://s3.amazonaws.com/tadovu/54404744417.pdfIn PDF document text
  • https://s3.amazonaws.com/subud/biorefinery_process.pdfIn PDF document text
  • https://s3.amazonaws.com/xanebavifamopez/79915317858.pdfIn PDF document text
  • https://s3.amazonaws.com/gupuso/55665783161.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_off00005958.bin)

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