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.com/123?keyword=unit+rate+and+ratio+word+problems+worksheets In PDF document text

  • https://cdn-cms.f-static.net/uploads/4374838/normal_5f8cb2c55fce7.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4384036/normal_5f8d1e7eb204b.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4372985/normal_5f889bede1641.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365626/normal_5f8d330b50d62.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4372960/normal_5f889a523e789.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366304/normal_5f8994a178b9e.pdfIn PDF document text
  • https://vezorobabuwej.weebly.com/uploads/1/3/0/9/130969079/1174120.pdfIn PDF document text
  • https://vilukenuxe.weebly.com/uploads/1/3/2/8/132814007/nixezuwime.pdfIn PDF document text
  • https://xuvakaxatal.weebly.com/uploads/1/3/1/0/131070170/wulefuzud_delukode.pdfIn PDF document text
  • https://sixapinipuso.weebly.com/uploads/1/3/1/3/131384402/7957065.pdfIn PDF document text
  • https://ditiwudo.weebly.com/uploads/1/3/1/4/131452947/xiloxaf_senor_bowifov.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_01_sfnt_off00006f6b.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_01_sfnt_off00006f6b.bin)
  • https://cdn.shopify.com/s/files/1/0484/5168/2454/files/los_10_principios_de_la_economia.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0499/0245/2935/files/37724939055.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0434/5603/7017/files/vista_landscape_lighting_replacement_bulbs.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/d2dcdf24-180c-48a2-a20c-e0505b877e80/sisonewagi.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/dab203aa-5d51-41ea-917d-16c08b3a9055/6514274255.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/aa037139-f09a-4c8b-9865-f88b02c18bb2/85665777765.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0266/7829/6756/files/57706240338.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0429/4970/5881/files/9688635751.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0497/8494/6850/files/freenas_11.2_plex_guide.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0498/7951/5291/files/xuwipugem.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_01_sfnt_off00006f6b.bin)

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