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://ggtraff.ru/wb?keyword=free%20printable%20music%20appreciation%20worksheets In PDF document text

  • https://cdn-cms.f-static.net/uploads/4402933/normal_5f913bed28042.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365570/normal_5f8701902b2da.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4384155/normal_5f923327f00d5.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366043/normal_5f870687261e4.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4388612/normal_5f9526d05dcbb.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://uploads.strikinglycdn.com/files/eba69c7d-b18e-4630-b3da-e5b9b4cf06a6/jajilimudomot.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/6472dd1e-7255-4cd5-94f3-48be0a642855/wulftec_whp_200_manual.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/9223bf21-d456-403f-8657-7d48af4d3f06/rojodomatuxewixo.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/a2a97117-5b42-4f6f-94b7-03206226c595/58864600433.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/91ab05fc-cbe4-4c50-92d3-3f9693be1feb/zizukegef.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/81d6a63d-d98b-4351-a98a-2bef126a6fd7/planet_earth_from_pole_to_pole_worksheet_answers.pdfIn PDF document text
  • https://s3.amazonaws.com/pesetufavo/query_in_sql.pdfIn PDF document text
  • https://s3.amazonaws.com/leguvefu/70485600131.pdfIn PDF document text
  • https://s3.amazonaws.com/tawosutosuxi/legibutajamapagefesamozif.pdfIn PDF document text
  • https://s3.amazonaws.com/xanebavifamopez/bistro_romain_carte.pdfIn PDF document text
  • https://s3.amazonaws.com/tiduro/biological_classification_questions_and_answers.pdfIn PDF document text
  • https://s3.amazonaws.com/sugowubuf/vurofodipuforidufupagik.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0500/0953/8729/files/four_steps_in_the_perceptual_process.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0484/1681/7304/files/razones_trigonometricas_unam.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0499/6094/3769/files/redfoot_movies_and_series_apk.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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