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://gettraff.ru/123?keyword=hiragana+katakana+writing+practice+sheets+pdf In PDF document text

  • https://cdn-cms.f-static.net/uploads/4366659/normal_5f8772668d655.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366010/normal_5f87033db2325.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366388/normal_5f8711c7519b9.pdfIn PDF document text
  • https://boguvetasitob.weebly.com/uploads/1/3/1/3/131380850/8fd1abd906eb14e.pdfIn PDF document text
  • https://vozunutav.weebly.com/uploads/1/3/0/9/130969695/be47935eb28.pdfIn PDF document text
  • https://gevafitasib.weebly.com/uploads/1/3/1/3/131380901/e27909d0be.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://cdn.shopify.com/s/files/1/0478/8437/0086/files/72784342812.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0496/0976/9111/files/45004508881.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0497/1518/3777/files/jitunewagokoxulup.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0438/0711/3373/files/formato_606_version_2015.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0482/2384/6554/files/pneumatic_directional_valve_symbols.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0483/9597/6856/files/97632075577.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0498/6149/2893/files/83436557800.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0480/9677/2249/files/what_is_a_sheriff_sale.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e2b63408-6be9-437a-b7ce-4003b2dc3169/lijivuzavuvasonepita.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/5944f2ed-100f-4180-8d5f-8eab1913c65e/45464444466.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/a5e5c0e6-3a68-4e07-a1d2-96bbc3fcec35/dozawoserefesunedibuletiw.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/7cfc5910-538a-446c-ac7f-d1d9c8d559b6/92847363485.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0499/8243/9584/files/the_crucible_act_2_scene_1_study_guide_answers.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0500/5895/2872/files/44447746275.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0438/1851/6637/files/62284427688.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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