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=autismo+causas+pdf In PDF document text

  • https://cdn-cms.f-static.net/uploads/4375353/normal_5f89c7f39593a.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4370068/normal_5f8b4e7152cb0.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4375517/normal_5f8b59773b25c.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4370746/normal_5f891876e6858.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4380403/normal_5f93a98e2fd04.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4387419/normal_5f92846f2d4ff.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4388813/normal_5f8df332b4130.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4374696/normal_5f904a04a78a6.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4370987/normal_5f8903998b7c1.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00006db1.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00006db1.bin)
  • http://www.daltonmaag.com/In extracted file (font_02_sfnt_off0000a26b.bin)
  • https://cdn.shopify.com/s/files/1/0496/7451/8691/files/python_guia_de_bolso_download.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0496/3667/1637/files/jadokaref.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0498/0306/7556/files/genetics_science_learning_center_worksheet.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/0bf90047-bb87-46b2-91d7-9c12b2949f68/kapobiwebopom.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/d5de8330-e3c9-4832-8666-0f5d0052d748/afaa_primary_group_exercise_certification_study_guide_answers.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/3b72273c-26f6-49b0-a338-800d0a4b6d79/tudisarakaboxodevel.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/a0e7e7f7-d04d-4d05-a4aa-8e66834fed54/90634694681.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/269966e9-9c31-40a7-8bb2-29aa4df976b3/98047679802.pdfIn PDF document text
  • https://s3.amazonaws.com/pazifetanegapu/matifaxeg.pdfIn PDF document text
  • https://s3.amazonaws.com/leguvefu/qualis_capes_peridicos.pdfIn PDF document text
  • https://s3.amazonaws.com/xanebavifamopez/76085033484.pdfIn PDF document text
  • https://s3.amazonaws.com/tadovu/32129388504.pdfIn PDF document text
  • https://s3.amazonaws.com/tibanepoxilibud/57836933448.pdfIn PDF document text
  • https://s3.amazonaws.com/xuzed/41334932430.pdfIn PDF document text
  • https://s3.amazonaws.com/subud/assam_rifles_merit_list_2019.pdfIn PDF document text
  • https://s3.amazonaws.com/fowikorejodi/90713189524.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_off00006db1.bin)

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