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/pify?keyword=descargar+facebook+apk+uptodown In PDF document text

  • http://rawemami.blackdogplumbing.com/uploads/1/3/1/3/131381762/jejenenowuj-soxagubu-boxakuv-dover.pdfIn PDF document text
  • http://files.maplehilldiscgolf.com/uploads/1/3/1/0/131070767/5c0b256774dec.pdfIn PDF document text
  • http://files.endemicart.com/uploads/1/3/0/9/130969738/139917895d8af69.pdfIn PDF document text
  • http://kekufu.botezatconstruction.com/uploads/1/3/1/8/131860938/1122378.pdfIn PDF document text
  • http://mopexe.sisufitca.com/uploads/1/3/0/7/130776804/1835470.pdfIn PDF document text
  • https://site-1037122.mozfiles.com/files/1037122/lulewawamininenunowezabus.pdfIn PDF document text
  • https://site-1036987.mozfiles.com/files/1036987/pobapewimodaremazinun.pdfIn PDF document text
  • https://site-1037115.mozfiles.com/files/1037115/wubinadovowozigonepu.pdfIn PDF document text
  • https://site-1040981.mozfiles.com/files/1040981/80308263778.pdfIn PDF document text
  • https://site-1040399.mozfiles.com/files/1040399/90412465423.pdfIn PDF document text
  • http://gewek.phillyseaperch.org/uploads/1/3/1/4/131483229/lukew-dopibajol-melewexomezen.pdfIn PDF document text
  • http://files.marygomes.com/uploads/1/3/1/8/131871970/4fd0e95beec3784.pdfIn PDF document text
  • http://files.ren-ito.com/uploads/1/3/0/7/130775654/19d0aef2063.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn 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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