Malicious PDF — malware analysis report

Heuristics 6

• 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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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=piano+keyboard+chord+chart+pdf In PDF document text

  • https://cdn-cms.f-static.net/uploads/4365555/normal_5f87436fa2c3a.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4372673/normal_5f8b3c2682bc0.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365547/normal_5f8f187fa57a8.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368979/normal_5f8872027aba9.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000747e.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000747e.bin)
  • https://cdn.shopify.com/s/files/1/0485/6089/8213/files/64585208899.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0502/1093/0880/files/my_talking_tom_mod_apk_game_download.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0502/8223/4039/files/what_is_evolutionism.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/2b22c7cd-31b8-4009-a6d0-bab8a9b523c6/bovilemogebobezatubabevo.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1c07300f-e211-45a1-b8c0-8ad77abcc463/47596751699.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/78000ad2-115d-4a02-b051-9847c8357062/24033520826.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/d511497f-07c8-4578-a35a-f4f077a06402/wogokawibaludod.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0496/8978/8572/files/99581179113.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0433/2044/3045/files/free_geometry_workbook.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0484/0488/9760/files/vuwafage.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0482/9521/5259/files/labanede.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0437/4816/3738/files/gordon_wine_bar_london_history.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0441/3099/2280/files/call_of_duty_mobile_aimbot_apk.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0266/7560/9775/files/nijawivunuluvapaxawa.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0484/1052/5853/files/uniform_building_by-laws_1984.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_off0000747e.bin)
  • http://dejavu.sourceforge.netIn extracted file (font_02_sfnt_off0000b5ec.bin)
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_02_sfnt_off0000b5ec.bin)

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