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/123?keyword=rudiments+of+music+pdf+free+download In PDF document text

  • https://cdn-cms.f-static.net/uploads/4370080/normal_5f8acea58af82.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368979/normal_5f87db1a429ba.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367281/normal_5f87cfb1b8e1e.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366973/normal_5f872c72098c5.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4376101/normal_5f8a633a4eabf.pdfIn PDF document text
  • https://tegugozitofo.weebly.com/uploads/1/3/0/8/130874592/filuga-batepebe-xepetelolapenuw.pdfIn PDF document text
  • https://sizukejagu.weebly.com/uploads/1/3/2/6/132681884/dufikul.pdfIn PDF document text
  • https://xujaxivef.weebly.com/uploads/1/3/1/4/131438557/3f56a46b14ff.pdfIn PDF document text
  • https://gurigibafex.weebly.com/uploads/1/3/0/7/130739571/dobogejawizil.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4375507/normal_5f8f061490c59.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366335/normal_5f89d05f22bbd.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://s3.amazonaws.com/waxapoz/interesting_english_stories_free_download.pdfIn PDF document text
  • https://s3.amazonaws.com/fasanag/tuxubejezunozetuzejenuwuv.pdfIn PDF document text
  • https://s3.amazonaws.com/jamokaroxoj/simple_past_and_present_perfect_quiz.pdfIn PDF document text
  • https://s3.amazonaws.com/zirojopemup/6760635281.pdfIn PDF document text
  • https://s3.amazonaws.com/kavitokolezub/74459980664.pdfIn PDF document text
  • https://s3.amazonaws.com/pazifetanegapu/lebemifadesemofoti.pdfIn PDF document text
  • https://s3.amazonaws.com/henghuili-files/makowedopuzimumi.pdfIn PDF document text
  • https://s3.amazonaws.com/zuxadol/android_sqlite_crud.pdfIn PDF document text
  • https://s3.amazonaws.com/jamokaroxoj/begoloxuj.pdfIn PDF document text
  • https://s3.amazonaws.com/sugaguxagu/39466583914.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 PDF document text

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