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=scott+afb+commissary+coronavirus In PDF document text

  • https://cdn-cms.f-static.net/uploads/4421061/normal_5f9814eff402d.pdfIn PDF document text
  • https://suganolorifumu.weebly.com/uploads/1/3/0/8/130814011/8415229.pdfIn PDF document text
  • https://gituwere.weebly.com/uploads/1/3/0/7/130740556/104609.pdfIn PDF document text
  • https://pirivelel.weebly.com/uploads/1/3/4/5/134505874/de3e07.pdfIn PDF document text
  • https://firedisivimi.weebly.com/uploads/1/3/0/9/130969818/63fb1f.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365653/normal_5f99cc88d37fa.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00008b9e.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00008b9e.bin)
  • https://s3.amazonaws.com/dotivaf/lugilax.pdfIn PDF document text
  • https://s3.amazonaws.com/fotojipifuzitul/tavezawafig.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0502/0781/7889/files/85665000441.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0505/1387/1018/files/chevrolet_cruze_body_kit_uk.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0266/7770/6943/files/92393203271.pdfIn PDF document text
  • https://s3.amazonaws.com/xozeb/learn_portuguese_download.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0496/2212/2660/files/osram_sylvania_bulbs_guide.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0495/9813/6472/files/commands_with_pronouns_in_spanish_worksheet.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0498/0054/4418/files/wubobukapiduliginisarobo.pdfIn PDF document text
  • https://s3.amazonaws.com/tosevud/manual_de_autocad_2018_gratis.pdfIn PDF document text
  • https://s3.amazonaws.com/wujodibu/fuzudesagulikivemawukeka.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_off00008b9e.bin)

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