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.
• Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
  Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
• 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.me/wix?keyword=scientific+american+presenting+psychology+2nd+edition+pdf

  • http://lazenebak.imjustkee.com/uploads/1/3/2/6/132681647/pebejatigepab.pdf
  • http://files.youngatartmn.com/uploads/1/3/0/8/130814774/a23c201fbc03.pdf
  • http://files.hoytcopinglab.org/uploads/1/3/1/0/131070309/6130068.pdf
  • http://files.alanphillipsart.com/uploads/1/3/2/8/132815767/86ae301e9.pdf
  • http://fidezuxa.taohandpan.com/uploads/1/3/2/8/132814930/waban.pdf
  • http://nafina.moriahellamason.com/uploads/1/3/2/6/132695839/xojonipotafiralarowe.pdf
  • http://www.ascendercorp.com/
  • http://www.ascendercorp.com/typedesigners.html
  • https://8d519092-251d-487e-8679-e60c2451754f.filesusr.com/ugd/c8df25_8c41dce34d504a3bbcaad6b564b31f97.pdf?index=true
  • https://90ed3aae-2675-4715-97a9-1be0aaa56baa.filesusr.com/ugd/a2ebd8_99b9dae66e874ad09593652d0f804089.pdf?index=true
  • https://c6b700fe-0833-41f9-99ab-bd04414f3e1a.filesusr.com/ugd/3c9ac1_5e34dfe8be404fe2a513c3bd1941c2f0.pdf?index=true
  • https://6754cec4-146b-4d6e-87f4-2efaa4ba9e29.filesusr.com/ugd/d8966e_e3b3b7fe3e2045deb7bf9273ef46d56c.pdf?index=true
  • https://42509098-9283-44a6-bc03-1f9f563281a0.filesusr.com/ugd/6c032c_5e8512e2a7ba4b49acb6eba06e5ec5a4.pdf?index=true
  • https://0837c1a3-90ec-42c2-8156-4fd9ec97a891.filesusr.com/ugd/227d0f_6c349faec6a9411fb8f2b45d44f58008.pdf?index=true
  • http://www.w3.org/1999/02/22-rdf-syntax-ns#
  • http://purl.org/dc/elements/1.1/
  • http://ns.adobe.com/pdf/1.3/
  • http://ns.adobe.com/xap/1.0/
  • http://ns.adobe.com/xap/1.0/mm/
  • http://ns.adobe.com/xap/1.0/rights/
  • http://scripts.sil.org/OFL

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