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://gettraff.ru/aws?keyword=4+on+4+soccer+unblocked In PDF document text

  • https://cdn-cms.f-static.net/uploads/4393511/normal_5f986c211d60f.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366400/normal_5f8741a22e2a5.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4421639/normal_5f9d382f2d3e5.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365599/normal_5f89321d54628.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368503/normal_5f8d0160210ff.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4403689/normal_5f9730570d885.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00007d17.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00007d17.bin)
  • http://www.daltonmaag.com/In extracted file (font_03_sfnt_off0000c9cb.bin)
  • https://s3.amazonaws.com/subud/4th_grade_math_word_problems_with_answers.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/4f567618-58e5-4c40-bc9c-98e63486b3d9/bomuwuzunuxoribepu.pdfIn PDF document text
  • https://s3.amazonaws.com/suzitivasekoga/math_workbook_grade_5.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/0d45e7e1-8075-4b84-9f1a-e00821dfd883/19893713358.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/aedf74b6-c2af-4822-b42a-78a17d3945dc/sulafopenafabefemu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/4b675f9f-57f4-466a-9c73-ffd404622e3d/melisalufeditiju.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ea9e3011-303d-49ca-b375-c3b02c786f99/vojinobemaxoziji.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0493/5768/4895/files/konamodemepokesek.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0436/2836/3939/files/46477278005.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_off00007d17.bin)
  • http://dejavu.sourceforge.netIn extracted file (font_02_sfnt_off0000b503.bin)
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_02_sfnt_off0000b503.bin)

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