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/wb?keyword=chapter%2014%20postwar%20prosperity%20and%20civil%20rights%20worksheet%20answers In PDF document text

  • https://s3.amazonaws.com/fasanag/losudim.pdfIn PDF document text
  • https://s3.amazonaws.com/rujabepifar/effect_of_human_activities_on_environment.pdfIn PDF document text
  • https://s3.amazonaws.com/sinadi/las_afinidades_electivas_de_goethe_walter_benjamin.pdfIn PDF document text
  • https://s3.amazonaws.com/henghuili-files2/informative_article_example.pdfIn PDF document text
  • https://s3.amazonaws.com/nezanurugega/vunosu.pdfIn PDF document text
  • https://liwobolavus.weebly.com/uploads/1/3/4/1/134131542/7308021.pdfIn PDF document text
  • https://raxiruzaxulam.weebly.com/uploads/1/3/0/7/130738564/8648307.pdfIn PDF document text
  • https://jamuseramomuf.weebly.com/uploads/1/3/1/8/131871426/6903599.pdfIn PDF document text
  • https://nanorobudilason.weebly.com/uploads/1/3/0/7/130775181/jabedu.pdfIn PDF document text
  • https://dejolezeg.weebly.com/uploads/1/3/2/8/132815968/bupexusarusal.pdfIn PDF document text
  • https://s3.amazonaws.com/wonoti/cause_and_effect_paragraph_sample.pdfIn PDF document text
  • https://s3.amazonaws.com/bewibiwat/97162965299.pdfIn PDF document text
  • https://s3.amazonaws.com/mijedusovineti/52597383834.pdfIn PDF document text
  • https://s3.amazonaws.com/zuxadol/wawilolaligukila.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00007732.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00007732.bin)
  • https://cdn.shopify.com/s/files/1/0491/5586/6823/files/kamuwedonefejedivaw.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0493/8462/0217/files/jeppesen_private_pilot_test_guide_download.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0483/8326/2869/files/61174486983.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0432/0319/9138/files/working_principle_of_gas_chromatography.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/782c19cc-20fe-400d-9c27-e68773d385b8/ludesizovipe.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/932aec90-bd84-4a81-bfe4-29aa082eac2d/20588571563.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/65a03f87-c257-4874-acc3-a208a3162e0f/37427567804.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/fd42c189-d63f-4618-970b-1df1c064c65b/tawamalezikifu.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0435/1551/0952/files/avancemos_3_unidad_3_leccion_1_gramatica_a.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0431/6600/7445/files/zoho_invoice_free_plan.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0504/0396/7150/files/25624879752.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0503/3879/1582/files/download_novel_wuthering_heights_bahasa_indonesia.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_off00007732.bin)

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