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://laborke.ru/uplcv?utm_term=china+one+country+two+systems+pdf PDF link annotation

  • https://performanceltg.com/wp-content/plugins/super-forms/uploads/php/files/614160cf0e772260a8c16b798a8683e9/kejokuvarenufamelipimumu.pdfIn PDF document text
  • https://proxus.nl/file/50656281586.pdfIn PDF document text
  • https://nusbetaja2.com/contents/files/goganof.pdfIn PDF document text
  • https://janeunchained.com/wp-content/plugins/super-forms/uploads/php/files/6cmrc963u230jp4u5n5jba1dgc/venijekejojipufolugok.pdfIn PDF document text
  • https://asiaviews.org/wp-content/plugins/super-forms/uploads/php/files/g87sj6eh7vu2op96fr4jf0b4e1/10748864829.pdfIn PDF document text
  • http://olsztyntransportmedyczny.pl/userfiles/file/jiranamapelewixemune.pdfIn PDF document text
  • https://ceccarbotosani.ro/userfiles/file/dapupesa.pdfIn PDF document text
  • http://ecohouse-lab.com/userfiles/file/14323871214.pdfIn PDF document text
  • http://www.louthadventures.ie/wp-content/plugins/formcraft/file-upload/server/content/files/160be5881e4932---pobosewitujatuner.pdfIn PDF document text
  • http://simonhoirup.dk/userfiles/file/53043697745.pdfIn PDF document text
  • http://heyumpnd.com/userfiles/file///57140560662.pdfIn PDF document text
  • http://elite-weekend.com/clients/9/94/945a7f92a07ecc721aac768ad340748a/File/29942270788.pdfIn PDF document text
  • http://skogsformedling.se/bilder_umeny/File/vunozubumofanojup.pdfIn PDF document text
  • http://mas.vacations/wp-content/plugins/formcraft/file-upload/server/content/files/16084f3745c20a---bojexugasuxoge.pdfIn PDF document text
  • https://successstudio.net/userfiles/file/fopifuwurexuvazuzanup.pdfIn PDF document text
  • https://livnica-metalurg.com/images/pages/file/72617876239.pdfIn PDF document text
  • http://omniatel.it/wp-content/plugins/formcraft/file-upload/server/content/files/1607145a6e9d0f---zedokal.pdfIn PDF document text
  • https://behbehaniprojects.com/uploads/files/95370464682.pdfIn PDF document text
  • http://starinviter.com/ckimagefiles/42008289741.pdfIn PDF document text
  • https://www.sibirprokat.ru/ckfinder/userfiles/files/52553825593.pdfIn PDF document text
  • http://autofactory-jin.com/js/upload/files/jabotamavebiji.pdfIn PDF document text
  • https://maugli24.ru/wp-content/plugins/super-forms/uploads/php/files/b80c2a39909b3aea602bf5ecf7dc9285/futowakugemuref.pdfIn PDF document text
  • https://kindliving.org/wp-content/plugins/super-forms/uploads/php/files/tmp/26681895927.pdfIn PDF document text
  • https://belhasasecurity.com/userfiles/file/vaxamuxeminadubariwal.pdfIn PDF document text
  • https://phoenixknights.co.uk/wp-content/plugins/super-forms/uploads/php/files/c96b3855151ef015b8affe101999b6b7/korufo.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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