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=covalent+compounds+worksheet+middle+school In PDF document text

  • https://luwobidope.weebly.com/uploads/1/3/0/8/130814225/a98be.pdfIn PDF document text
  • https://sokuvotaboraj.weebly.com/uploads/1/3/0/7/130776263/5aaddbea.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off000090fe.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off000090fe.bin)
  • https://uploads.strikinglycdn.com/files/ab7328dd-0b76-4d8e-b480-96b322b16a0f/wajipojubiwetewifuzav.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/5bd14461-bba8-41dd-a833-992d223e1819/62314249596.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/c41a1d8f-e1b5-452b-8f4f-b599690459a9/sozazezomabanidinewu.pdfIn PDF document text
  • https://s3.amazonaws.com/fasanag/how_to_use_breadboard_for_beginners.pdfIn PDF document text
  • https://s3.amazonaws.com/mefadedosuw/furidabogetanazuxojem.pdfIn PDF document text
  • https://s3.amazonaws.com/luxelula/58810534746.pdfIn PDF document text
  • https://s3.amazonaws.com/golepe/30923746960.pdfIn PDF document text
  • https://s3.amazonaws.com/nonipesikiri/2d_game_tutorial_unity.pdfIn PDF document text
  • https://s3.amazonaws.com/wonoti/attachment_styles_in_relationships.pdfIn PDF document text
  • https://s3.amazonaws.com/henghuili-files2/ascii_hex_table.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/f06b2b06-7ca4-4169-a5fc-7a847740f4c9/terrible_old_games_youve_probably_never_heard_of.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/7c2362b7-2ac0-4ba7-8a13-9635a17368af/90265637526.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0500/0436/1366/files/ultimate_general_civil_war_ui_mod.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0266/8177/0163/files/family_guy_through_the_years_reddit.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0266/8766/8409/files/dexagafedonaza.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0430/1458/6517/files/precalculus_ron_larson_10th_edition.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0498/1224/2586/files/65569805208.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_off000090fe.bin)

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