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=din+513+buttress+thread+pdf In PDF document text

  • https://cdn-cms.f-static.net/uploads/4370996/normal_5f8981ca82a8b.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369343/normal_5f8d16e7cce18.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369645/normal_5f8d01280ac76.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4387240/normal_5f931a5728099.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000634f.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000634f.bin)
  • http://www.fontrix.comhttp://www.nhncorp.comIn extracted file (font_02_sfnt_off00009b5a.bin)
  • https://s3.amazonaws.com/henghuili-files2/6th_pay_commission_wb.pdfIn PDF document text
  • https://s3.amazonaws.com/henghuili-files/heterogeneous_single-_atom_catalysis.pdfIn PDF document text
  • https://s3.amazonaws.com/petuzutemixuvod/80762360541.pdfIn PDF document text
  • https://s3.amazonaws.com/dadupawo/28388254381.pdfIn PDF document text
  • https://s3.amazonaws.com/paxivogedewilu/kidavatavowabunaxibok.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0434/4230/7233/files/24074670548.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0266/9808/8628/files/cisco_300_series_switches_data_sheet.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0431/9074/7295/files/jibamikoberijekin.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/54f10707-7dc3-4498-b5ea-b59d1cc61ed3/redevevoxetuxuwoz.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/0db7e06c-1d9a-4624-aa90-6666ea782286/3909697775.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/2b73cb88-cb13-4c0b-9081-4dab3a954dcb/99835916934.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0498/9177/0526/files/norma_eia_tia_568_y_568b.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0496/1258/7159/files/je_te_veux_piano_sheet_music.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0430/8602/0775/files/blackmart_alpha_apk_ios.pdfIn PDF document text
  • https://s3.amazonaws.com/felasorarabipis/todidavor.pdfIn PDF document text
  • https://s3.amazonaws.com/fowikorejodi/ketogenic_diet_recipes_free.pdfIn PDF document text
  • https://s3.amazonaws.com/kufazete/25900492922.pdfIn PDF document text
  • https://s3.amazonaws.com/sulasatevirexo/anxiety_symptoms_checklist.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_off0000634f.bin)

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