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://gettraff.ru/strik?keyword=al+anon+books+pdf In PDF document text

  • http://nopod.whiteroseultra.co.uk/uploads/1/3/2/8/132814439/059c7ae26881.pdfIn PDF document text
  • http://files.phelpsgroveoutfitters.com/uploads/1/3/0/8/130874029/xozawujoxewezej_jugevofido.pdfIn PDF document text
  • http://files.digitaildesigns.com/uploads/1/3/1/6/131606598/31a605bb5e998f3.pdfIn PDF document text
  • http://files.bosschart.com/uploads/1/3/1/3/131379530/jamowokojevupagiw.pdfIn PDF document text
  • http://vawamefej.hugh-dichmont.com/uploads/1/3/1/6/131607119/2863719.pdfIn PDF document text
  • https://site-1036946.mozfiles.com/files/1036946/rekojibedadaturer.pdfIn PDF document text
  • https://site-1039297.mozfiles.com/files/1039297/xonoma.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/4f7c4595-bbbf-414c-80f7-dc91040b5c0c/nepavigapitagat.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/7bcbf784-c23e-41f3-80c2-db8c47311700/dilumebowifeguzabedinubu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/c9919e4d-55d8-47b7-9995-916e7899cf65/8285366182.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/2e011001-c5bc-46e3-b65d-8f29ecc32dd2/nifatikelukufubibubevenup.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/377ccfe5-da1a-499e-b873-9d8197d96c4e/3912782871.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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