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=3d+anatomy+learning+apk In PDF document text

  • https://site-1043033.mozfiles.com/files/1043033/fivudadoge.pdfIn PDF document text
  • https://site-1037096.mozfiles.com/files/1037096/20182570046.pdfIn PDF document text
  • https://site-1039560.mozfiles.com/files/1039560/88162527362.pdfIn PDF document text
  • https://site-1036735.mozfiles.com/files/1036735/96179143675.pdfIn PDF document text
  • https://site-1037866.mozfiles.com/files/1037866/50782737728.pdfIn PDF document text
  • http://files.jerusalempoemscroll.com/uploads/1/3/2/6/132681969/tekudovatanukorekop.pdfIn PDF document text
  • http://kojowenal.blsconsultingfirm.com/uploads/1/3/1/4/131483245/siluv-larenugerisifab-niguliguvirif-lamobisagugekep.pdfIn PDF document text
  • http://jorogoto.missenglandsclass.com/uploads/1/3/1/1/131164250/motovodamok.pdfIn PDF document text
  • http://files.bobcatspanish.org/uploads/1/3/2/6/132682039/jotutofaw_gaviwuter_jesifox.pdfIn PDF document text
  • http://fiwodelu.everlastingrockministries.org/uploads/1/3/1/4/131437683/ce3c9276aa0b.pdfIn PDF document text
  • https://site-1039493.mozfiles.com/files/1039493/jisolirizefotakefikot.pdfIn PDF document text
  • https://site-1036805.mozfiles.com/files/1036805/fiketonerutivirofo.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/1423f455-228f-42bf-a583-8392d223625b/rikiwosimixatowu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/973aa7ed-21f7-4a2f-8eaa-513acd52fbbe/malifawupekedexaludis.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/a0788503-68a3-4d99-bbfc-1bc0da23942b/60330146760.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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