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
• 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 68 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://irlanc.ru/uplcv?utm_term=prototype+android+phone PDF link annotation

  • http://mtjjt.com/2013/upload/article/files/210909094913887941mfdls.pdfIn PDF document text
  • https://h1t-urlaurora1-turbo.com/contents/files/42610208207.pdfIn PDF document text
  • http://zhizhencn.com/filespath/files/20210909193424.pdfIn PDF document text
  • https://ringid.vn/ckfinder/userfiles/files/93721206782.pdfIn PDF document text
  • http://lalitas-thaimassage-spa.de/wp-content/plugins/formcraft/file-upload/server/content/files/1614f278679076---dezuromuzuno.pdfIn PDF document text
  • https://windscrm.net/files/file/43051101865.pdfIn PDF document text
  • http://zadonskiy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/161417648cee58---19145725373.pdfIn PDF document text
  • http://dulichtantai.com/files/uploaded/files/6565996430.pdfIn PDF document text
  • https://eletroluz-al.com/_IMG/img_internas/file/74650496000.pdfIn PDF document text
  • http://vucert.vn/uploads/files/futope.pdfIn PDF document text
  • http://diagnosticaedilizia.com/userfiles/files/56440065455.pdfIn PDF document text
  • https://iamtimeshare.com/userfiles/file/mesudileko.pdfIn PDF document text
  • https://118highschool.am/wp-content/plugins/super-forms/uploads/php/files/3652e70b8be8aca32815639c3a52f96e/gisivim.pdfIn PDF document text
  • https://autosofortkauf.ch/wp-content/plugins/super-forms/uploads/php/files/s89qd70len1hiiqfcl71rdj4g4/tuwinot.pdfIn PDF document text
  • https://villanakarin.com/userfiles/files/bowudusagowetuloz.pdfIn PDF document text
  • https://aquariumfargo.com/wp-content/plugins/super-forms/uploads/php/files/74f76c75d2afc199caa3354590bcbf33/28135265723.pdfIn PDF document text
  • http://www.libroparlatolions.it/backoffice/ckfinder/userfiles/files/95257658921.pdfIn PDF document text
  • http://www.anaja-inter.org/public/file/natifetoro.pdfIn PDF document text
  • http://olapromos.com/ola/uploads/editorImagesfiles/nusetuwolazutekupujefej.pdfIn PDF document text
  • http://fst-uinsu.net/userfiles/files/10194702209.pdfIn PDF document text
  • http://constantemail.com/userfiles/file/163159091444412600446.pdfIn PDF document text
  • http://carshopm.com/js/upload/files/75108829635.pdfIn PDF document text
  • https://vongtaytramhuong.vn/upload/files/44741558357.pdfIn PDF document text
  • http://gesgo.de/userfiles/file/36178277805.pdfIn PDF document text
  • http://mpwlawpa.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/zazibelenonidamixoxupife.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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