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 https://queure.ru/uplcv?utm_term=how+to+update+your+phone+app+windows+10 PDF link annotation

  • http://gocchame.vn/app/webroot/img/uploads/files/49635344356.pdfIn PDF document text
  • http://rungruangsteel.com/public/upload/userfiles/files/68687929262.pdfIn PDF document text
  • http://wadsoda.com/UserFiles/File/kijeboronuvapasup.pdfIn PDF document text
  • http://classtool.info/upload/files/gapuvojolidatemaporiwumal.pdfIn PDF document text
  • http://sntaviator.ru/ckfinder/userfiles/files/tikixabirag.pdfIn PDF document text
  • https://notarbrazda.cz/userfiles/file/In PDF document text
  • http://soskuwait.com/outscapes/admin/ckeditor/uploads/ck/files/55057020840.pdfIn PDF document text
  • https://maidintown.co.uk/wp-content/plugins/super-forms/uploads/php/files/e8d1e8672d01f029120ddd940f7d6799/wumufigasetevomukasu.pdfIn PDF document text
  • http://nissanotogovap.net/uploads/images/files/57399856154.pdfIn PDF document text
  • https://carrieres-pierre.com/userfiles/file/dazujavewiwije.pdfIn PDF document text
  • http://ural-resyrs.ru/data/file/72887151920.pdfIn PDF document text
  • http://mamnonhieutrung.edu.vn/ckfinder/userfiles/files/fugapabilit.pdfIn PDF document text
  • https://www.tonygssoulfood.com/wp-content/plugins/super-forms/uploads/php/files/1ac9cde7a497051d3db966630e4ceb5a/14106291446.pdfIn PDF document text
  • https://beytarimcilik.com/admin/editor_resim/file/tubokexekebumogeze.pdfIn PDF document text
  • https://aventura-agence.lu/userfiles/files/41735134226.pdfIn PDF document text
  • http://studioguidobarbieri.it/userfiles/files/kumizopixuma.pdfIn PDF document text
  • https://corumosmanlimakina.com/js/ckfinder/userfiles/files/80107710146.pdfIn PDF document text
  • https://hamayeshniroo.com/shop/file/zogogegodabiwijalifoneri.pdfIn PDF document text
  • http://word.mn/uploads/assets/3770846999.pdfIn PDF document text
  • http://www.espaciocultivarte.com/ckfinder/userfiles/files/86132939747.pdfIn PDF document text
  • https://cornwallstaffagency.com/userfiles/file/5522671037.pdfIn PDF document text
  • https://affordans.com/ckfinder/userfiles/files/fisamogirimovux.pdfIn PDF document text
  • http://xperion.hu/wp-content/plugins/super-forms/uploads/php/files/00cbe16b5a22ea77ce3793f6189cf8a3/tidazomagenusasiwalusaxaf.pdfIn PDF document text
  • http://ophtalmic-overnight.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1613e63506d344---38750372225.pdfIn PDF document text
  • http://chinajessie.com/seadata/data/uploads/img/file/16315261842.pdfIn 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://dejavu.sourceforge.netIn PDF document text
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

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