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://cctraff.ru/aws?keyword=learn+arabic+language+through+telugu+pdf In PDF document text

  • https://cdn-cms.f-static.net/uploads/4381544/normal_5f8f32f043d4b.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366623/normal_5f87480326616.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4383322/normal_5f8bb0282067a.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365626/normal_5f87c2499abe1.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368745/normal_5f87b89789346.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000c187.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000c187.bin)
  • http://fedorahosted.org/lohitIn extracted file (font_01_sfnt_off0000d38d.bin)
  • https://cdn.shopify.com/s/files/1/0438/0993/1426/files/etrade_solo_401k_after_tax_contributions.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0483/4669/3781/files/aboriginal_language_map.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0482/8115/7796/files/fugegevuvawumipoxafafeki.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0465/2040/2078/files/xedomalo.pdfIn PDF document text
  • https://s3.amazonaws.com/gitipelut/autocad_drawing_file_sample.pdfIn PDF document text
  • https://s3.amazonaws.com/gupuso/abs_and_squat_challenge.pdfIn PDF document text
  • https://s3.amazonaws.com/kavitokolezub/gofasomasetunixidi.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0496/1206/2884/files/68614758884.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0486/2613/9294/files/music_player_apk_for_iphone.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0433/0219/1269/files/excel_vba_print_range.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0439/8468/3166/files/constant_velocity_worksheet.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/73c7f200-2203-4ad1-bcc4-1acf871e9c7c/71459818914.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/9a7e8771-427f-4572-be14-c7e6ced62273/examen_asignatura_estatal_primero_secundaria.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/f77f96e1-8b56-48fa-9b05-1aa2b85c657d/dunubatitilazir.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ea7368f7-1f0d-4e3e-9507-89ab430ec98d/vizekalupowi.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_off0000c187.bin)

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