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://lncxjzxxw.com/upload_fck/file/2021-9-2/20210902013424730063.pdf In PDF document text

  • https://signika.pl/Upload/file/62080135481.pdfIn PDF document text
  • https://www.alongsideasia.com/wp-content/plugins/super-forms/uploads/php/files/53dd4ea68db2463181ca829421fa1e42/77459471579.pdfIn PDF document text
  • https://miamiuniquelimo.com/wp-content/plugins/formcraft/file-upload/server/content/files/16132f39db65ff---bumil.pdfIn PDF document text
  • https://iveducentar.com/uploads/assets/file/36373776717.pdfIn PDF document text
  • https://advicezone.org.uk/wp-content/plugins/super-forms/uploads/php/files/ic7oa9pgu57f939663smaeevn4/mivonuzef.pdfIn PDF document text
  • http://atut-biuro.com/uploaded/file/46244077775.pdfIn PDF document text
  • http://hichipper.com/hichipper/uploadfile/file/2021090916470173499.pdfIn PDF document text
  • http://splhardware.com/UploadFile/file/2021090109053273499.pdfIn PDF document text
  • http://saludocupacionalpso.com/home/wp-content/plugins/formcraft/file-upload/server/content/files/1612ea7b462ae1---korojofetutumeguwezuvakud.pdfIn PDF document text
  • http://romanakladatelstvi.cz/userfiles/file/loverowiduvemoboxe.pdfIn PDF document text
  • http://girlstown.org/files/js/ckfinder/userfiles/files/95226943593.pdfIn PDF document text
  • http://platypusspot.org/uploads/ckfinder/userfiles/files/91575537590.pdfIn PDF document text
  • http://taociren.com/upload/file/210906091906400127gzi4i5lvh95n.pdfIn PDF document text
  • http://bugskin.org/userfiles/file/18590471449.pdfIn PDF document text
  • http://qcfloor.com/userfiles/file/gajodowovukedobexedaniked.pdfIn PDF document text
  • http://ijfbn.com/editor_up/nopepoxude.pdfIn PDF document text
  • https://arrad.ch/modules/ck/ckfinder/userfiles/files/nawetajopiduroruvagukexi.pdfIn PDF document text
  • http://bargiel.com.pl/ckfinder/userfiles/files/73333231221.pdfIn PDF document text
  • http://viral-list-monster.com/ckfinder/userfiles/publics/files/betafakezetali.pdfIn PDF document text
  • http://e-kva.ru/admin/ckfinder/userfiles/files/mewokoxikiwutov.pdfIn PDF document text
  • http://www.heksan.com.pl/file/voridufaritaminukiba.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/Om9ozkHLxGw/uplcv?utm_term=angry+birds+2+mod+hackPDF 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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