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/strik?keyword=japanese+spitz+dog+food In PDF document text

  • https://cdn-cms.f-static.net/uploads/4403131/normal_5f96814f271b8.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4386349/normal_5f9835009219b.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00006c21.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00006c21.bin)
  • https://cdn.shopify.com/s/files/1/0496/7766/4413/files/88091898909.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0493/6571/3055/files/wisudugowuwowome.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0266/7829/6756/files/66916238251.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0498/5949/4050/files/vine_adorarte_letra_blest.pdfIn PDF document text
  • https://s3.amazonaws.com/vuzufexarevima/2833842375.pdfIn PDF document text
  • https://s3.amazonaws.com/megulu/37057694673.pdfIn PDF document text
  • https://s3.amazonaws.com/jamokaroxoj/atramentowe_serce_ksika.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/447a364f-3646-4325-bd41-a0209b0716d3/budizekaruferilugemek.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1fae4629-834d-4f0b-b2c4-f5f0650adf2b/52987750970.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/52f7cf7f-cafd-4606-9a16-09a287bf633f/texas_property_and_casualty_study_guide.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0482/8738/3714/files/lima_bean_jimmy_neutron.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0501/5289/8739/files/nokija.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0434/1750/1853/files/guild_of_calamitous_intent_sticker.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0479/6694/5447/files/jelujixixefevupabikaju.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_off00006c21.bin)

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