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.link/123?keyword=arithmetic+mean+formula+for+grouped+data+pdf In PDF document text

  • https://cdn-cms.f-static.net/uploads/4374953/normal_5f8bed9d873db.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4408333/normal_5f946b2724054.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4386829/normal_5f8ebe9114f9d.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4372354/normal_5f9019d893c32.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off000069e3.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off000069e3.bin)
  • https://s3.amazonaws.com/henghuili-files/aadhar_card_form_kannada.pdfIn PDF document text
  • https://s3.amazonaws.com/susopuzupure/puxipipusew.pdfIn PDF document text
  • https://s3.amazonaws.com/gogonof/bsc_1st_year_inorganic_chemistry_book_download.pdfIn PDF document text
  • https://s3.amazonaws.com/zuxadol/repipidokerexoj.pdfIn PDF document text
  • https://s3.amazonaws.com/zirojopemup/67497062439.pdfIn PDF document text
  • https://s3.amazonaws.com/pazovugal/approaches_to_educational_research.pdfIn PDF document text
  • https://s3.amazonaws.com/lixasifasi/47692096587.pdfIn PDF document text
  • https://s3.amazonaws.com/panalipolifod/7504275853.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0438/6150/8256/files/bodum_tea_press_assam.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0498/8105/5390/files/34378971315.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0500/4083/2150/files/letter_n_worksheets_twisty_noodle.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0431/7102/0960/files/padamogedarozid.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0266/7675/6669/files/68480740086.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0497/4893/4819/files/81953827041.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0496/5898/6645/files/ifrs_9_eu.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0504/1861/4432/files/android_geofence_device_app.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/37d6f6bb-9653-4b3d-8b86-77882dadb9b3/xeviburu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/4cdf7156-bc62-44a6-851e-5411930fd0a4/zobafemogapediso.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/bae5f08e-4465-4bc6-9c86-80888c9826b4/21970009272.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_off0000a3b6.bin)
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (stream_005_off0000a3b6.bin)
  • http://scripts.sil.org/OFLIn extracted file (font_00_sfnt_off000069e3.bin)

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