Malicious PDF — malware analysis report

Heuristics 7

• 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.
• Recovery secret / private key request critical SE_SECRET_RECOVERY_LURE
  Document requests recovery phrases, private keys, backup codes, or saved passwords. Requests for these secrets in a document are high-risk.
• 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.
• Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
  Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
• 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.ru/pify?keyword=drawing+book+file+type+pdf In PDF document text

  • http://ladofuwo.tandersonart.com/uploads/1/3/0/8/130814471/1686387.pdfIn PDF document text
  • http://viran.akidsplace-huntingburg.org/uploads/1/3/1/6/131607062/6571233.pdfIn PDF document text
  • http://poxaf.groundzerovaping.com/uploads/1/3/2/6/132682646/e36677ff9c41e65.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • http://fedorahosted.org/lohitIn PDF document text
  • https://cdn.shopify.com/s/files/1/0438/3634/2434/files/29519367893.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0434/0711/4391/files/42218237232.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0433/8538/9206/files/best_entrepreneur_books_of_all_time_pdf.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0429/7487/1711/files/sindrome_de_abstinencia_a_la_cafeina.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0430/4610/9345/files/94954981679.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0428/7443/7791/files/85652776029.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0427/9674/4871/files/68534034926.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0429/0324/0871/files/27140776123.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0438/0141/1744/files/56330185758.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 PDF document text
  • http://dejavu.sourceforge.netIn PDF document text
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

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