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://ttraff.me/aws?keyword=kptcl+syllabus+for+ae+civil+2019+pdf In PDF document text

  • https://cdn-cms.f-static.net/uploads/4367923/normal_5f8959f192ab4.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4373983/normal_5f920ffea9615.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365570/normal_5f873a7c34822.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369769/normal_5f89a3b2e21ab.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4375517/normal_5f89b9112a5e5.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4370053/normal_5f92c397ae617.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366665/normal_5f8e73894585f.pdfIn PDF document text
  • https://pefopurez.weebly.com/uploads/1/3/4/3/134375846/tuniwalarapuz_bewegikumesi_pejodurenurix_zaxajoni.pdfIn PDF document text
  • https://jakemujilofadam.weebly.com/uploads/1/3/1/3/131380171/dekotubij-vovupoxo.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off000067c8.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off000067c8.bin)
  • https://uploads.strikinglycdn.com/files/3cffa683-8919-408a-b015-28e6cf056b91/wenifalebizurelapumedirul.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/28a0eb2d-a3b4-4955-af34-8cff804921e9/zugefibiz.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/35279b5f-a5d2-45c0-8ac2-33730b14d931/13311266827.pdfIn PDF document text
  • https://s3.amazonaws.com/wefadep/livro_budismo.pdfIn PDF document text
  • https://s3.amazonaws.com/tadovu/que_es_el_centralismo.pdfIn PDF document text
  • https://s3.amazonaws.com/mijedusovineti/49882708415.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0502/2570/9211/files/download_whatsapp_apk_november_2020.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0435/5417/7185/files/iaf_result_2020_download.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0437/8315/9969/files/20167564831.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0501/4870/4444/files/english_worksheet_for_class_6_cbse.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_off000067c8.bin)

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