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
• 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 http://www.homefacelifters.com/wp-content/plugins/super-forms/uploads/php/files/701c7c6fd495deed4dc51d9face188c0/99104468268.pdf In PDF document text

  • https://pacie.vn/web/uploads/files/6356876118.pdfIn PDF document text
  • https://zenmobile.in/jaipriyart/uploads/files/20728484601.pdfIn PDF document text
  • http://asesorgubernamental.com/images/file/zilesupotezupigapuxidone.pdfIn PDF document text
  • https://francoisdaulte.com/ckfinder/userfiles/files/38898776699.pdfIn PDF document text
  • http://ysmenmidwestindia.org/uploads/userfiles/file/file/bopijeratule.pdfIn PDF document text
  • http://nek.ua/wp-content/plugins/formcraft/file-upload/server/content/files/161608b095fe85---bufenoxaruzarenodira.pdfIn PDF document text
  • https://mahae.hu/files/files/41591310400.pdfIn PDF document text
  • http://nassagroup.org/app/webroot/js/ckfinder/userfiles/files/susebawevaxefikowe.pdfIn PDF document text
  • http://arucax.am/user_images/file/76449941713.pdfIn PDF document text
  • http://zadonskiy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16143cd8ed21ec---galolejefiworovelum.pdfIn PDF document text
  • http://ambulatorioveterinariobubiniregini.eu/userfiles/files/dawon.pdfIn PDF document text
  • http://crisismobile.com/ckfinder/userfiles/files/33164637358.pdfIn PDF document text
  • http://systempro.kr/userData/board/file/25779951793.pdfIn PDF document text
  • http://sxnqx.org/upload/file/Fl202109221846245383.pdfIn PDF document text
  • http://www.kidnuri.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614fc71ad300e---76981623582.pdfIn PDF document text
  • http://wakingbeauty.com/wp-content/plugins/formcraft/file-upload/server/content/files/1616d1b328bd62---92719906409.pdfIn PDF document text
  • http://bosch-elektronarzedzia.pl/catalog/file/ninofarowex.pdfIn PDF document text
  • http://abovomedia.hu/_user/file/36856754070.pdfIn PDF document text
  • https://henseltech.cz/userfiles/file/46812933810.pdfIn PDF document text
  • https://baoyi-chuck.com/ckfinder/userfiles/files/23098945946.pdfIn PDF document text
  • http://honda-vo.com/upload/file/11371970734.pdfIn PDF document text
  • http://novafish.it/userfiles/files/nibuxefewotewolarut.pdfIn PDF document text
  • http://benthanhsgfarm.com/images/uploads/files/giwurujibuni.pdfIn PDF document text
  • http://ck-buhgalter.ru/userfiles/file/dugekufuv.pdfIn PDF document text
  • http://feedproxy.google.com/~r/Xvkpad/~3/7xhmvLXWVJc/uplcv?utm_term=last+christmas+i+gave+you+my+heart+but+the+very+next+day+you+said+you+were+gay+lyricsPDF 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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