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 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.
• QR-code redirect lure medium SE_QR_LURE
  Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
• 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=airplay+for+android+free PDF link annotation

  • https://contabil-fiscal.ro/mm/file/tukitufuwuzebop.pdfIn PDF document text
  • http://5mal4.de/moneyvidya/web/images/userfiles/file/90243619065.pdfIn PDF document text
  • http://op-gold.com/ck_image/files/jiwazipunenosojubugekiz.pdfIn PDF document text
  • http://www.dadosefatos.net.br/wp-content/plugins/formcraft/file-upload/server/content/files/1613ff99da660a---36765939699.pdfIn PDF document text
  • http://mrs724.ir/basefile/drtiketcom/files/59893272501.pdfIn PDF document text
  • http://rubensova16.cz/files/file/womiti.pdfIn PDF document text
  • http://www.masozilina.sk/ckfinder/userfiles/files/60276473487.pdfIn PDF document text
  • http://dongbanja.com/userData/ebizro_board/file/nemuxava.pdfIn PDF document text
  • https://www.champagne-cornevin.fr/ckfinder/userfiles/files/nifepalipuruzujebixebo.pdfIn PDF document text
  • https://kenhquangcao.vn/uploads/files/41178973484.pdfIn PDF document text
  • http://www.rajpuc.pl/pics/file/81670717201.pdfIn PDF document text
  • http://ekachaiguitarist.com/ckfinder/userfiles/files/noniwaxe.pdfIn PDF document text
  • http://pcwenhua.com/uploadimg/file/16318873911285562841.pdfIn PDF document text
  • http://makesomenoise.hu/upload/file/94102602829.pdfIn PDF document text
  • https://dedywiredja.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613859ea09350---zoroxa.pdfIn PDF document text
  • http://teamtrinity.net/trinitya/file/jotexetusuxizawe.pdfIn PDF document text
  • http://paintingservicesonline.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16144b313e1398---69455288294.pdfIn PDF document text
  • https://alcc.vn/wp-content/plugins/super-forms/uploads/php/files/li058uokjbgklsl3j2ui54k2e6/bezinafufu.pdfIn PDF document text
  • http://bc-arman.kz/ckfinder/userfiles/files/tonajabopewuvixemovuzeji.pdfIn PDF document text
  • http://master-br.ru/img/file/60687492439.pdfIn PDF document text
  • https://bi-kiesabbau.de/cmsimple/images/file/89397283781.pdfIn PDF document text
  • https://quangcaonoithatgiahung.com/admin/webroot/upload/image/files/85377379623.pdfIn PDF document text
  • https://octvads.site/js/ckfinder/userfiles/files/gumafojukopila.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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