Malicious PDF — malware analysis report

Heuristics 8

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
  PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 69 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
• 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://krisoc.ru/uplcv?utm_term=which+continent+is+the+largest+and+smallest PDF link annotation

  • https://vizzzio.ru/wp-content/plugins/super-forms/uploads/php/files/210d383b8dad2fa02fb4e90a02519236/lufoterelatuni.pdfIn PDF document text
  • https://unitedfightalliance.jordanadams.com/ckfinder/userfiles/files/72352252709.pdfIn PDF document text
  • https://aukshanya.promosing.com/alpha/ckfinder/userfiles/files/5610871935.pdfIn PDF document text
  • http://jl-vacuum.com/upload/files/64893650073.pdfIn PDF document text
  • https://drmiamiconnect.com/wp-content/plugins/super-forms/uploads/php/files/7ef4695573fbeaf9f67ad446138d1654/28829688027.pdfIn PDF document text
  • https://marcvandewiele.com/userfiles/file/morarakiwirifufiwozeb.pdfIn PDF document text
  • http://xaydunghoangthanh.com/img_duhoc/files/87891683792.pdfIn PDF document text
  • http://biosurfest.com/userfiles/files/fagebazebe.pdfIn PDF document text
  • http://www.firengo.com/userfiles/files/segazerugibola.pdfIn PDF document text
  • http://megaprestige.ru/uploads/files/14730896616.pdfIn PDF document text
  • https://drainscovers.com/wp-content/plugins/super-forms/uploads/php/files/8af5851dcfe051e6d06315603b944240/12537814818.pdfIn PDF document text
  • http://www.pointcookelectrician.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/161407317f0b95---bevimi.pdfIn PDF document text
  • http://permanentnimakeup-brno.cz/userfiles/files/53889555705.pdfIn PDF document text
  • https://paeonia.ch/userfiles/files/75193448718.pdfIn PDF document text
  • http://hagelkonzept.com/userfiles/file/77903654154.pdfIn PDF document text
  • http://wxbeimei.cn/upload/ckimg/files/202109011805219991.pdfIn PDF document text
  • https://ximangcampha.vn/upload/files/pezamarodofof.pdfIn PDF document text
  • https://trainova.com/userfiles/file/57440706813.pdfIn PDF document text
  • http://petraifevronii.ru/ckfinder/userfiles/files/wunot.pdfIn PDF document text
  • http://autosoftware.company/autoresponders_images/files/wogexewamugekugexun.pdfIn PDF document text
  • http://yuanjiangchem.com/upload/files/wuweranekidudiripo.pdfIn PDF document text
  • https://baglab.pl/galeria/file/51030825244.pdfIn PDF document text
  • http://mybed.tw/uploads/files/202109010953335685.pdfIn PDF document text
  • https://www.acptechnologies.com/wp-content/plugins/formcraft/file-upload/server/content/files/16133032673a4b---numemefikadovonekuvu.pdfIn PDF document text
  • http://yameitecl.com/ckfinder/userfiles/files/20210905_050224.pdfIn PDF document text
  • https://grupo.iberia.com/js/ckfinder/userfiles/files/refezobojoledipo.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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