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/123?keyword=appointment+reminder+app+android+free In PDF document text

  • https://cdn-cms.f-static.net/uploads/4390661/normal_5f94212092bb6.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4409258/normal_5f94798b5ab6a.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4393028/normal_5f8ed16e41f72.pdfIn PDF document text
  • https://wiwazalokapig.weebly.com/uploads/1/3/4/2/134265383/6657634.pdfIn PDF document text
  • https://debaduvevuw.weebly.com/uploads/1/3/4/3/134383420/mavigulata.pdfIn PDF document text
  • https://rofexigu.weebly.com/uploads/1/3/0/7/130738805/ff55ecd3af.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4381529/normal_5f93da85a7baa.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369763/normal_5f95020c32e15.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4389085/normal_5f929acc07108.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00006768.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00006768.bin)
  • http://www.daltonmaag.com/In extracted file (font_02_sfnt_off00009a20.bin)
  • https://s3.amazonaws.com/zerepuzuze/lsat_scantron_sheet.pdfIn PDF document text
  • https://s3.amazonaws.com/subud/44410580547.pdfIn PDF document text
  • https://s3.amazonaws.com/widofafane/vuwufopopinesuz.pdfIn PDF document text
  • https://s3.amazonaws.com/fasanag/autocad_2017_3d_tutorial.pdfIn PDF document text
  • https://s3.amazonaws.com/susopuzupure/nixuwifanojumopivogitet.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0481/5916/2521/files/instagram_direct_message_recovery_android.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/3ce19eb8-f1bc-4f99-941d-c0c6996d7487/95552553421.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/20e90521-f29f-40b1-a275-4e310da24c84/bemusularavizavavedi.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/b51a52c4-0003-4a70-81fb-a5fc86ee94ae/troy_bilt_horse_manual.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_off00006768.bin)

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