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=hotspot+free+vpn+proxy+apk In PDF document text

  • https://cdn-cms.f-static.net/uploads/4366661/normal_5f932932e7b61.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4383678/normal_5f9097d9a14a2.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368971/normal_5f8a0927cb24e.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366653/normal_5f91c1a79b626.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365657/normal_5f9003b2147b5.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367687/normal_5f92d746547b5.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366360/normal_5f872343bc043.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4401691/normal_5f95c0e83d57f.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4374022/normal_5f8b202096bb3.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366018/normal_5f86f4ab61390.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4373992/normal_5f91eaa13c1dc.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4379362/normal_5f8b3c0340334.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365525/normal_5f87077966ba9.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4389794/normal_5f8da06d49757.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366961/normal_5f92dbf754b35.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365536/normal_5f88fa2c71571.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368970/normal_5f8d84044d734.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368989/normal_5f91f9557701e.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000731d.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000731d.bin)
  • https://s3.amazonaws.com/tujeviwakirawu/43581913902.pdfIn PDF document text
  • https://s3.amazonaws.com/pazifetanegapu/98493081771.pdfIn PDF document text
  • https://s3.amazonaws.com/moduxanakuri/dictionary_english_to_english_free_download.pdfIn PDF document text
  • https://s3.amazonaws.com/zetare/79407502526.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0497/2599/7217/files/xanoma.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0497/1518/3777/files/pijawigikegujiluvuxaxijep.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0482/8531/9332/files/how_many_types_of_elimination_reactions_are_there.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0497/1518/3777/files/android_pie_multitasking_apk.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0480/9677/2249/files/gozebejefomuvovotave.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_off0000731d.bin)
  • http://dejavu.sourceforge.netIn extracted file (font_02_sfnt_off0000ad25.bin)
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_02_sfnt_off0000ad25.bin)

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