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=roster+apps+for+android In PDF document text

  • https://basuxebuj.weebly.com/uploads/1/3/1/3/131379820/zisudexovolosirap.pdfIn PDF document text
  • https://sakuvida.weebly.com/uploads/1/3/0/7/130775714/cbb0ca98c903.pdfIn PDF document text
  • https://zekasujiminog.weebly.com/uploads/1/3/4/3/134366003/3801c7661.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00007ac7.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00007ac7.bin)
  • http://www.daltonmaag.com/In extracted file (font_02_sfnt_off0000af43.bin)
  • https://s3.amazonaws.com/rekorewexidiwo/behold_the_dreamers_free_download.pdfIn PDF document text
  • https://s3.amazonaws.com/mijedusovineti/xitodosokedugowufidogivan.pdfIn PDF document text
  • https://s3.amazonaws.com/nigimul/85783245880.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/949556a7-7e9a-489b-b49f-fc5f36cbf6a1/15323136834.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/15bc2d42-3b3d-486a-ad97-c51eb1287513/defolofekaw.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0434/0314/9479/files/35255308084.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0488/0623/2229/files/organic_chemistry_quiz.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/d12a9c3f-7cc3-41a6-a786-ca160c63f3b9/33442562353.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/fa94212d-d479-4c1c-b2e8-b88797fdc67b/topupabewilakalipa.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1ddc804d-b0f1-4835-a346-082105f5713a/masuseboweluwonaned.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/19ecf256-a5e7-4c13-8dea-4325fb289eef/kunoriguxarovezudozimotu.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0430/9689/9745/files/android_one_nokia_7_plus.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0501/9664/4016/files/ponte_en_forma_cocinando_con_ingrid.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0501/8697/7441/files/mapa_turistico_lisboa_2020.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_off00007ac7.bin)

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