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/aws?keyword=vocabulary+test+questions+and+answers+pdf In PDF document text

  • https://cdn-cms.f-static.net/uploads/4405946/normal_5f94dc0a67e1f.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369304/normal_5f87f9ec76df4.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4382189/normal_5f8d9b4381465.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4401519/normal_5f94792e762fb.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4407994/normal_5f92efda2976a.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4370068/normal_5f888542d249b.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4378857/normal_5f8d1b76c27a2.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00007806.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00007806.bin)
  • http://www.daltonmaag.com/In extracted file (font_02_sfnt_off0000afc0.bin)
  • https://cdn.shopify.com/s/files/1/0268/7198/8410/files/23434543516.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0436/9648/8613/files/46210208628.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0484/9532/9442/files/68861482992.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0484/2930/1918/files/jifixokituferolufudiwe.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0432/1030/9787/files/28389504134.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0431/8996/0865/files/lodawojiguruteteg.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0268/8742/2152/files/anemia_de_celulas_falciformes_en_nios.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0432/7217/5772/files/primitive_cooking_methods.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0503/6651/3312/files/zanerixezexaxu.pdfIn PDF document text
  • https://s3.amazonaws.com/wibedubosateg/pdf_to_cdr_file_converter_software_free_download.pdfIn PDF document text
  • https://s3.amazonaws.com/henghuili-files2/54556899381.pdfIn PDF document text
  • https://s3.amazonaws.com/dutimajizowa/xiwofalariwobakusobomew.pdfIn PDF document text
  • https://s3.amazonaws.com/sugaguxagu/alessandra_rampolla_libros_gratis.pdfIn PDF document text
  • https://s3.amazonaws.com/henghuili-files/legomidipumu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/108642f6-e281-4633-8ff7-f6ff588b9bc6/chicony_usb_2.0_camera_driver_windows_7_64_bit.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ff8e2df4-424a-4f5b-af35-33ebd2cbef3e/icd_10_sensory_processing_disorder.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/b378e9c6-b0f1-4443-b567-1444daedce93/wubelapevoz.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/d691680a-1545-4be4-b149-51817a2843b3/bejewotidomijux.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_off00007806.bin)

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