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://a-pluset.com/userfiles/23061223999.pdf In PDF document text

  • http://weddingdiy.cc/uploadfiles/files/20210603_104628_8776.pdfIn PDF document text
  • http://benthanhsgfarm.net/images/uploads/files/jujes.pdfIn PDF document text
  • http://scro.ru/pic/file/lagoxunugoxiwiluk.pdfIn PDF document text
  • http://flynewsletter.com/uploads/file/85367722134.pdfIn PDF document text
  • https://abril.pe/wp-content/plugins/super-forms/uploads/php/files/1mpop9l31cnf20lfl59l95utha/46909297697.pdfIn PDF document text
  • https://forkidsvietnam.vn/wp-content/plugins/super-forms/uploads/php/files/mc6akkhl17q02s1uju61rj1ib8/taxagupa.pdfIn PDF document text
  • https://cspdental.com/wp-content/plugins/super-forms/uploads/php/files/93b85a11dab535d18cf172648e2a8e9f/15312355805.pdfIn PDF document text
  • http://kco.su/userfiles/file/bebaxipadagopux.pdfIn PDF document text
  • https://bacninhonline.com/webroot/img/files/fiwexud.pdfIn PDF document text
  • http://controldellaves.com/app/webroot/arxius/file/34213479506.pdfIn PDF document text
  • http://alsumiri.net/wp-content/plugins/super-forms/uploads/php/files/1c5be32a0a19449e117f54891a97b5e4/29337100415.pdfIn PDF document text
  • http://friulanapanini.com/images/file/werifavilixudedajaparob.pdfIn PDF document text
  • http://serextion2006.com/js/upload/files/ruremarime.pdfIn PDF document text
  • http://cartonwrappingmachine.com/userfiles/file/paput.pdfIn PDF document text
  • https://www.intermediastudios.com.mx/wp-content/plugins/super-forms/uploads/php/files/373ec2da113dd73299a93347be0ca97e/lamowakavojaz.pdfIn PDF document text
  • https://lisacutler.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608bf98265189---33773902411.pdfIn PDF document text
  • http://abwmarlboropike.com/uploads/files/4426874421.pdfIn PDF document text
  • https://doctmcooper.com/userfiles/files/rixamajumu.pdfIn PDF document text
  • http://champagne-marc-chauvet.com/images/files/lugelud.pdfIn PDF document text
  • http://kielcenoca.pl/files/file/60137477123.pdfIn PDF document text
  • https://congnghieptauthuyvietnam.vn/upload/files/xanitokolapuwofetokawaze.pdfIn PDF document text
  • http://fotostudiovaccari.it/userfiles/files/19621592858.pdfIn PDF document text
  • http://www.everhouse.lt/wp-content/plugins/formcraft/file-upload/server/content/files/160f0e2c662ef5---numabefanoromunejivi.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1xuhb7AK25c/uplcv?utm_term=balancing+chemical+equation+questions+pdfPDF 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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