Malicious PDF — malware analysis report

Heuristics 8

• 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 to algorithmically-generated URL high PDF_RANDOM_URL_LINK
  PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
• 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://cructi.ru/uplcv?utm_term=index+of+series+limitless+season+1 PDF link annotation

  • https://www.keystonecare.co.uk/wp-content/plugins/super-forms/uploads/php/files/ad150a36a271a36b6158498449287f2a/46976075217.pdfIn PDF document text
  • https://www.lang-mayer.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613167dbd1a3d---megateriwujelabunivadex.pdfIn PDF document text
  • http://randoquad72.fr/userfiles/file/voxoderi.pdfIn PDF document text
  • http://www.hydro-tg.pro/upload/file/xonurosatavafukowufabal.pdfIn PDF document text
  • https://www.birdandwildlifeteam.com/wp-content/plugins/formcraft/file-upload/server/content/files/16133cd353b56b---54936000348.pdfIn PDF document text
  • https://yournew.site/wp-content/plugins/super-forms/uploads/php/files/ccgqpaqcehqpfaklidbahgjk5m/73213664657.pdfIn PDF document text
  • http://thietbimaugiao.vn/Images_upload/files/fexiw.pdfIn PDF document text
  • http://dangkyidol.com/wp-content/plugins/super-forms/uploads/php/files/s7aqa8vku2t2i6c4bbj59mdblb/zakuxuw.pdfIn PDF document text
  • http://www.thegrcinstitute.org/app/webroot/js/ckfinder/userfiles/files/88731303890.pdfIn PDF document text
  • http://akpanlawoffice.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/bewomuzakivu.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/b3c9f9u2moe112bn7a5oesggn2/99571418714.pdfIn PDF document text
  • http://tomaszfilipczak.pl/userfiles/file/kemutosesisume.pdfIn PDF document text
  • http://officegate.biz/admin/fck_upload/file/98102137601.pdfIn PDF document text
  • http://benrassam.com/uploads/files/64356564300.pdfIn PDF document text
  • https://paulogomeslda.com/userfiles/file/28143388763.pdfIn PDF document text
  • https://www.totspotdaynursery.co.uk/ckfinder/userfiles/files/gagigelobopilu.pdfIn PDF document text
  • http://casms.org/atts/news-files/file/97235284941.pdfIn PDF document text
  • http://residenceraffaellotorino.com/userfiles/files/36913861578.pdfIn PDF document text
  • http://www.jhannahs.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613cc355950ea---pelemivajidojovipu.pdfIn PDF document text
  • http://residenzaeden-albisola.com/userfiles/files/jedax.pdfIn PDF document text
  • https://ipssecurityconsultants.com/ckfinder/userfiles/files/zumemezipigej.pdfIn PDF document text
  • https://wodepcb.cn/uploadfiles/files/95224035715.pdfIn PDF document text
  • http://jerseybankruptcylaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/96095412804.pdfIn PDF document text
  • http://101balkon.ru/upload/files/327590893.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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