Malicious PDF — malware analysis report

Heuristics 4

• 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 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://cctraff.ru/pify?keyword=perro+shih+tzu+peque%25C3%25B1o In PDF document text

  • https://site-1037843.mozfiles.com/files/1037843/duvetaferojurebej.pdfIn PDF document text
  • https://site-1036713.mozfiles.com/files/1036713/58348711720.pdfIn PDF document text
  • https://site-1036675.mozfiles.com/files/1036675/tinifimotolixekunilis.pdfIn PDF document text
  • http://files.kayak150.com/uploads/1/3/1/3/131381078/19824.pdfIn PDF document text
  • http://files.simplysouthernfoodie.com/uploads/1/3/1/6/131637313/vilexopi_vimufaju_faxumodo_tajuxufodo.pdfIn PDF document text
  • http://files.saberlightknights.com/uploads/1/3/2/7/132740249/15fa802.pdfIn PDF document text
  • http://files.thuruthoorsinaimount.com/uploads/1/3/1/8/131856415/woxoxab_dumevenu_kakitaxusotases.pdfIn PDF document text
  • http://wojoxax.lvcoptical.com/uploads/1/3/1/3/131379256/gifosokeluv.pdfIn PDF document text
  • https://site-1039491.mozfiles.com/files/1039491/siwugukazisibitu.pdfIn PDF document text
  • https://site-1040775.mozfiles.com/files/1040775/59864292657.pdfIn PDF document text
  • https://site-1038784.mozfiles.com/files/1038784/wifixisazab.pdfIn PDF document text
  • https://site-1037253.mozfiles.com/files/1037253/40040265465.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://uploads.strikinglycdn.com/files/7bac5e92-8690-4943-84a2-91473b8e9e1d/1295597209.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/9079816e-26ca-4ccf-8a94-334812fa8a54/pesudupu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/4e59642f-0253-4dc7-86e0-0b1b64954e82/mosupofokelikajemawigon.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

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