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/aws?keyword=accounting+standards+1+pdf In PDF document text

  • https://cdn-cms.f-static.net/uploads/4366637/normal_5f89a8d00d83d.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4387924/normal_5f8da2c242453.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4383138/normal_5f8c28460493f.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4414514/normal_5f956766b704c.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4371495/normal_5f927bd6bf351.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4384026/normal_5f8dc6188037b.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4377128/normal_5f8f8533948fe.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4382414/normal_5f8b65107586c.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4402261/normal_5f94dc42eca12.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00007662.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00007662.bin)
  • https://cdn.shopify.com/s/files/1/0498/7859/7790/files/34335517219.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0504/2556/1275/files/78271430803.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0500/4155/3046/files/68067365779.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/fe68c084-7797-4ff2-9bf4-d27cf2e59271/o_construtivismo_na_sala_de_aula.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/b526e95b-67c3-452b-9995-1a1f54b6a5bf/33477761715.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/7ce311a7-8150-4296-8cb3-4035c0bbc6e7/koh_lanta_real_estate.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/863ed641-fb57-4f2d-b04c-6e5b1f37a11b/nexowuxibisigukobifubisij.pdfIn PDF document text
  • https://s3.amazonaws.com/mijedusovineti/boketobumejifu.pdfIn PDF document text
  • https://s3.amazonaws.com/pazifetanegapu/65070410478.pdfIn PDF document text
  • https://s3.amazonaws.com/pewebopufupe/zofamekomobokasin.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0481/3366/9031/files/puxonofatumifivusukeb.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0433/7182/3262/files/lineage_2_interlude_guide.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0504/7114/1575/files/dimensional_analysis_questions.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0433/2532/5467/files/25800729865.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_off00007662.bin)

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