Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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://patanamachine.com/imgUpload/files/47208678506.pdf In PDF document text

  • http://zjqzzx.com/uploadfile/file/2021090221491573499.pdfIn PDF document text
  • http://longbienco.com/js/ckfinder/userfiles/files/6129522598.pdfIn PDF document text
  • https://edusfera.pl/upload/file/najusajelitenaladovo.pdfIn PDF document text
  • http://fine-cottage.ru/userfiles/files/70855405803.pdfIn PDF document text
  • http://sd-admin.fazendapenaazul.com/ckeditor/uploads/files/50715907010.pdfIn PDF document text
  • http://greenflameenergy.com/userfiles/file/54202636047.pdfIn PDF document text
  • http://canshu.dlzj.net/upload/files/20210929085702981264.pdfIn PDF document text
  • http://ceramicaartisticamarsalese.it/userfiles/files/ruwevibewonimur.pdfIn PDF document text
  • http://sendedianqi.com/upload_fck/file/2021-9-18/20210918171227721263.pdfIn PDF document text
  • http://gniortho.com/files/Upload/file/damonajiruv.pdfIn PDF document text
  • http://sts-logistika.ru/wp-content/plugins/super-forms/uploads/php/files/2231a697b164d309697575506e1137b2/33812653185.pdfIn PDF document text
  • http://baltyk.recykling-rejs.pl/imgturysta/files/64639957043.pdfIn PDF document text
  • http://tnslib.su/userfiles/files/99126109372.pdfIn PDF document text
  • http://alexlunacoach.com/img/editor/file/vipumev.pdfIn PDF document text
  • http://malir-naterac.info/UserFiles/File/75496428605.pdfIn PDF document text
  • http://www.almansori-ye.com/almansorifiles/files/namadox.pdfIn PDF document text
  • http://keramann.ru/uploads/files/fewekefuvibanagoxiwabi.pdfIn PDF document text
  • http://ocean-ex.com/images/blog/file/filege.pdfIn PDF document text
  • http://www.bewegeninarnhem.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1615a34de79b33---duvesujujisew.pdfIn PDF document text
  • http://divodizain.ru/ckfinder/userfiles/files/kuxebofegebogifepemuleda.pdfIn PDF document text
  • http://ajej.pretty-match.com/upload/files/wutave.pdfIn PDF document text
  • http://prvugkh.ru/uploads/files/vuferabokox.pdfIn PDF document text
  • https://www.groupe-coelho.fr/ckfinder/userfiles/files/potawufoxigiko.pdfIn PDF document text
  • https://redac.ch/upload/jebubimotijuxukofidugaf.pdfIn PDF document text
  • http://www.guaitoli.eng.br/wp-content/plugins/formcraft/file-upload/server/content/files/16137dd8d442f5---mutuliwug.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/3vuEKuznOb8/uplcv?utm_term=command+line+text+to+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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