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 67 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://arte-salon.ru/upload_picture/70728587413.pdf In PDF document text

  • http://48bulls.com/js/upload/files/16543611850.pdfIn PDF document text
  • http://chrisdepanneservices.com/Sites/cds/files/ruvetik.pdfIn PDF document text
  • http://tokyoto.pl/UserFiles/file/88750738536.pdfIn PDF document text
  • http://swancentive.com/cote_dor_import/admin/ckfinder/userfiles/files/45948412886.pdfIn PDF document text
  • http://upnbkk.com/file_media/file_image/file/82805499012.pdfIn PDF document text
  • https://altaitur.com/ckfinder/userfiles/files/89984292391.pdfIn PDF document text
  • http://jafra-com.at/userfiles/file/5433907911.pdfIn PDF document text
  • http://sinsg.com/files/fckeditor/file/siwasonawamal.pdfIn PDF document text
  • http://www.a-fairys-choice.com/wp-content/plugins/formcraft/file-upload/server/content/files/16130faa523866---waxerixogaral.pdfIn PDF document text
  • http://missteenqueenuk.com/userfiles/file/31959372933.pdfIn PDF document text
  • http://protezas.lt/i/File/zunasizefafasasetodo.pdfIn PDF document text
  • http://ncfc.com.tr/ckfinder/userfiles/files/dupimatonetifoda.pdfIn PDF document text
  • http://altaprecision.com/userfiles/file/92558765744.pdfIn PDF document text
  • http://dailymaytrogiang.com/userfiles/files/16262376314.pdfIn PDF document text
  • https://fotojursa.cz/userfiles/file/1639322744.pdfIn PDF document text
  • https://intervalhousehamilton.org/ckfinder/userfiles/files/34100328537.pdfIn PDF document text
  • http://richmore.kr/uploadfile/fckeditor/file/32006428726.pdfIn PDF document text
  • https://hacunamatata.ru/wp-content/plugins/super-forms/uploads/php/files/5877a4fe4d95fb36549aec99ca534d81/81000174945.pdfIn PDF document text
  • http://lactopad.com/uploads/files/kewanozakilazisoxabe.pdfIn PDF document text
  • https://mdteam.se/ckfinder/userfiles/files/selozu.pdfIn PDF document text
  • http://paintingservicesonline.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16137d7f20c178---jovazigumedopafivawuzom.pdfIn PDF document text
  • http://aaexpansionjoint.com/wp-content/plugins/formcraft/file-upload/server/content/files/16131f61a2b8f7---wamavosupawome.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/zMnd8XtcwSM/uplcv?utm_term=top+5+car+gamePDF link annotation
  • 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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