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://ttraff.link/aws?keyword=vocabulary+family+members+pdf In PDF document text

  • https://cdn-cms.f-static.net/uploads/4390371/normal_5f93467bb8786.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369768/normal_5f88a95455c57.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369187/normal_5f8cc42db5822.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366408/normal_5f871c971c86a.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4374178/normal_5f890235efdea.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4377674/normal_5f8b78f1585fb.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4403688/normal_5f943b335ac86.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4379482/normal_5f8ab3b03e136.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4408174/normal_5f94205852473.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00006ba1.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00006ba1.bin)
  • https://cdn.shopify.com/s/files/1/0502/4441/9757/files/wavelebifigexudo.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0496/0537/8212/files/labufasefatevug.pdfIn PDF document text
  • https://s3.amazonaws.com/nuxulikiwab/4075823587.pdfIn PDF document text
  • https://s3.amazonaws.com/tofizo/34618672294.pdfIn PDF document text
  • https://s3.amazonaws.com/sivanira/vlookup_hlookup_tutorial.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/8384b06b-c4af-490a-8930-1caaba0660dd/konufekete.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/30744034-4ef4-4596-93f8-47fcf9e93258/26100951787.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/01066cc6-4f71-435f-ac16-3e6c4049a6af/58080342164.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/915be777-f3bc-4cbc-aa67-62ef36515ac1/modern_elementary_statistics_by_freund.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/518589e1-16e9-4451-8fa5-3a2ad7a110ef/e1_f9_whirlpool_washer.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/acafbf99-0890-4c48-9a4d-44078a38f9c2/11541236223.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/640f860f-786f-44f6-9556-891bac128d49/koleziguwigukejeja.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_off00006ba1.bin)

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