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.
• PDF carries website-builder CDN document link farm medium PDF_CDN_PDF_LINK_FARM
  PDF contains many clickable PDF links parked on website-builder CDNs or simple download gateways together with visible ebook, manual, or download lure text. This matches generated SEO document carriers used to route users through untrusted link/download chains; the PDF itself is an inert link carrier.
• 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://ggtraff.ru/wb?keyword=much%20ado%20about%20nothing%20pdf%20with%20line%20numbers In PDF document text

  • https://s3.amazonaws.com/fosagoba/1274409453.pdfIn PDF document text
  • https://s3.amazonaws.com/fuwenoxuzasila/rules_for_balancing_chemical_equations.pdfIn PDF document text
  • https://s3.amazonaws.com/gifojuxaxeva/bezuzupofowunezutuj.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4379720/normal_5f8e183b2343e.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368469/normal_5f8d56df02668.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368237/normal_5f8ab6172d7fd.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4380380/normal_5f8c57eae081c.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368485/normal_5f8841ccd57e4.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4387571/normal_5f93d76e0882f.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4376612/normal_5f89d441b5fc0.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4388422/normal_5f9143ce958f5.pdfIn PDF document text
  • https://s3.amazonaws.com/susopuzupure/liberalization_policy.pdfIn PDF document text
  • https://s3.amazonaws.com/xisefowu/7775957101.pdfIn PDF document text
  • https://s3.amazonaws.com/fajixe/pediatric_electrocardiography.pdfIn PDF document text
  • https://s3.amazonaws.com/pazifetanegapu/gasukatovezolowizapipav.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000ac67.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000ac67.bin)
  • https://cdn.shopify.com/s/files/1/0506/4956/3310/files/onmovies_apk_download_ios.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0266/9094/5215/files/guzosutosexor.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0435/4133/2127/files/pusorataxonesow.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0501/5198/1244/files/pogekirukilevanos.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0428/3315/0118/files/antistress_latest_mod_apk.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0268/8158/9432/files/77308568085.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_off0000ac67.bin)

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