Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
  PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
• 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.
• Embedded JS stream low PDF_JS
  PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
• External URI info PDF_URI
  PDF contains an external URL action
• 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 http://mzch.pl/userfiles/file/98768852336.pdf In PDF document text

  • http://all-paca.com/ckeditor/ckfinder/core/connector/php/uploads/files/xuvibuguvor.pdfIn PDF document text
  • http://balmybnb.com/t/tutorfirm/uploads/ck/files/kukegenuroxewuxinexuto.pdfIn PDF document text
  • http://tms-technology.com/ckfinder/userfiles/files/wogiwikiroladorukisof.pdfIn PDF document text
  • http://tubesealer.com/uploaded/file/4657281436142369a0225e.pdfIn PDF document text
  • https://shatalarab-llc.net/userfiles/files/38581137410.pdfIn PDF document text
  • http://goldnumber.info/userfiles/file/86180089875.pdfIn PDF document text
  • https://linlinline.biz/js/ckfinder/userfiles/files/lakegarima.pdfIn PDF document text
  • http://meuseguro.top/fotosempresa/files/208841379.pdfIn PDF document text
  • http://www.allatpatikapecs.hu/images/file/32896683605.pdfIn PDF document text
  • http://investbuild.ru/var/upload/file/68539190572.pdfIn PDF document text
  • http://lncxjzxxw.com/upload_fck/file/2021-9-21/20210921025249725863.pdfIn PDF document text
  • http://photo-poligrafic.ru/ckfinder/userfiles/files/18655294207.pdfIn PDF document text
  • https://technok.cz/wp-content/plugins/super-forms/uploads/php/files/6f5baea6ea517188d8f97f1a7b11f6a2/buwalot.pdfIn PDF document text
  • http://annabarons.com/files/files/93991346864.pdfIn PDF document text
  • http://www.fattyweng.com.sg/wp-content/plugins/formcraft/file-upload/server/content/files/161428c798452f---15736449914.pdfIn PDF document text
  • http://shop-exclusive.cz/userfiles/file/bedibadabedasajeku.pdfIn PDF document text
  • https://masterok-kovka.ru/wp-content/plugins/super-forms/uploads/php/files/e119b50a6d04230bcd6dba87d3252903/suxevupozapimobilekanar.pdfIn PDF document text
  • https://deewo.de/wp-content/plugins/formcraft/file-upload/server/content/files/1612fab6b02021---82834137929.pdfIn PDF document text
  • https://derfo.info/resimler/files/sowekafosesedipuwegofovef.pdfIn PDF document text
  • http://vizcsap.hu/files/file/lazosarejirelogas.pdfIn PDF document text
  • http://mywayrtk.info/userfiles/file/86293697944.pdfIn PDF document text
  • https://oalysa.cz/ckfinder/userfiles/files/jelilepivomeresanurerani.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/BvfzZFkJO3s/uplcv?utm_term=presentation+clicker+app+for+androidPDF link annotation
  • 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://dejavu.sourceforge.netIn PDF document text
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

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