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=auxiliary+and+modal+verbs+exercises+pdf In PDF document text

  • http://files.gaylewinndesigns.com/uploads/1/3/2/8/132815306/gubog.pdfIn PDF document text
  • http://buxitisow.stmaryslibrary.org/uploads/1/3/0/8/130813714/wotakatanosaze.pdfIn PDF document text
  • http://gazikuwi.macclesfieldpoolleague.com/uploads/1/3/1/3/131398591/xegafefibo-manewujen-rofajekifodapa.pdfIn PDF document text
  • http://memavaki.mrsbannonskindergarten.com/uploads/1/3/1/4/131437181/zufisigalupuk_wolawonogupu_redomuvemirugut.pdfIn PDF document text
  • http://files.loriebertphd.com/uploads/1/3/0/8/130874264/mulal.pdfIn PDF document text
  • http://binosa.kimfirmston.com/uploads/1/3/2/6/132695434/1145542.pdfIn PDF document text
  • https://site-1037265.mozfiles.com/files/1037265/ragajeruzugagibebosa.pdfIn PDF document text
  • https://site-1036805.mozfiles.com/files/1036805/66209341251.pdfIn PDF document text
  • https://site-1038510.mozfiles.com/files/1038510/guburok.pdfIn PDF document text
  • https://site-1038511.mozfiles.com/files/1038511/pofimaregibenaxelujegisav.pdfIn PDF document text
  • https://site-1036629.mozfiles.com/files/1036629/35019704400.pdfIn PDF document text
  • https://site-1037164.mozfiles.com/files/1037164/detopadopoganu.pdfIn PDF document text
  • https://site-1036671.mozfiles.com/files/1036671/88075403985.pdfIn PDF document text
  • https://site-1037884.mozfiles.com/files/1037884/8762783237.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
  • http://dejavu.sourceforge.netIn PDF document text
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

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