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 https://wastran.ru/uplcv?utm_term=how+to+fill+out+a+fax+cover+sheet+example PDF link annotation

  • http://recamonde.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1609642e7f127e---76126417787.pdfIn PDF document text
  • https://big-cash.de/wp-content/plugins/super-forms/uploads/php/files/7hg1ggjmiuqc96o2ut3cem2alt/68993207515.pdfIn PDF document text
  • https://www.tessilgiada.it/wp-content/plugins/formcraft/file-upload/server/content/files/16070c182c60dd---97552148456.pdfIn PDF document text
  • https://empirepin.com/calisma2/files/uploads/bumaxe.pdfIn PDF document text
  • https://xn--arbeitskndigungsrecht-best-5zc.de/userfiles/file/fezeletifemosijiv.pdfIn PDF document text
  • https://bancodevida.com/bancodevida/admin/images/image/file/34283750207.pdfIn PDF document text
  • http://regalmotors-jp.com/js/upload/files/zufawujevom.pdfIn PDF document text
  • https://bursaceviritercume.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608303b0bfdc6---46663633770.pdfIn PDF document text
  • http://korsorlampang.net/user_img/files/kilunodugowilonajubuput.pdfIn PDF document text
  • https://www.ferienhof-schneider.de/wp-content/plugins/formcraft/file-upload/server/content/files/1606d3e98e292c---dekumibifevizepi.pdfIn PDF document text
  • http://pmdrecycling.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607dad6c7ca6d---54589942305.pdfIn PDF document text
  • https://adiwirawanbali.com/wp-content/plugins/super-forms/uploads/php/files/004009b056ffb204a8fb0de1a57aa3d6/63220044564.pdfIn PDF document text
  • http://tpdw.pl/userfiles/file/635834272.pdfIn PDF document text
  • http://capitolmetrophysicaltherapy.com/userfiles/file/gafodamajaxu.pdfIn PDF document text
  • http://asalsold.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608be97c8f072---49888476267.pdfIn PDF document text
  • http://cohn-vossen.com/wp-content/plugins/formcraft/file-upload/server/content/files/16083ec9bdf309---66454582331.pdfIn PDF document text
  • http://plncse.hu/php_data/file/gavumuz.pdfIn PDF document text
  • http://amtusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/16091242827838---45688106264.pdfIn PDF document text
  • https://www.denisonlandscaping.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f78a387f69f---55550891449.pdfIn PDF document text
  • http://schubert-hh.de/image/file/5548774296.pdfIn PDF document text
  • http://www.prieteniitehnicii.ro/documente/file/941017571.pdfIn PDF document text
  • https://gulfsupremesa.com/ckfinder/userfiles/files/23650273004.pdfIn PDF document text
  • http://biomassasia.net/data_ed/userfiles/file/gakabufukixovunotegotume.pdfIn PDF document text
  • http://adamlegal.com/userfiles/file/fifar.pdfIn PDF document text
  • https://xn--90ah6akb9e.xn--p1ai/f/file/39314644574.pdfIn PDF document text
  • http://mdsalon.ru/img/lib/file/39808519362.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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