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
• 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://crewmak.ru/uplcv?utm_term=class+11th+physics+thermodynamics+notes PDF link annotation

  • http://www.39koratmachinery.com/file_upload/files/77778322184.pdfIn PDF document text
  • http://nguyenxuanhuong.com/upload/files/dilovexa.pdfIn PDF document text
  • https://przygodanaukrainie.pl/admin/ckfinder/userfiles/files/dinolupudizevepakobil.pdfIn PDF document text
  • https://www.cylinder96.ru/admin/ckfinder/userfiles/files/bipijutudad.pdfIn PDF document text
  • http://veiligheidsslot.nl/ckfinder/userfiles/files/63888354701.pdfIn PDF document text
  • https://tecsal.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/161359d488fbca---xugowu.pdfIn PDF document text
  • https://moraure.net/js/ckfinder/userfiles/files/71730772621.pdfIn PDF document text
  • https://www.sevgiliyevideo.net/wp-content/plugins/formcraft/file-upload/server/content/files/16155bb5bb7370---34796328804.pdfIn PDF document text
  • https://sv-fin.ru/wp-content/plugins/super-forms/uploads/php/files/4f33bf00487dfc8542e88c2cbf2761c9/mikunidumapakixajise.pdfIn PDF document text
  • http://auto4-spb.ru/public/images/ckfinder/files/11898348345.pdfIn PDF document text
  • http://www.likoda.com.tw/upload/ckimg/files/wojivakexajivenoguv.pdfIn PDF document text
  • http://hairtransplantmangalore.com/uploaded_files/userfiles/files/56478878975.pdfIn PDF document text
  • https://ecowaytechnologies.com/ckfinder/userfiles/files/23305308002.pdfIn PDF document text
  • http://moveworldtogether.com/datas/files/vofadelozexexudenis.pdfIn PDF document text
  • https://ocloud.millionserenity.com/images/upload/files/damarudajujunan.pdfIn PDF document text
  • http://kingcraftviet.com/uploads/ckfinder/files/66742298770.pdfIn PDF document text
  • http://usefchina.com/uploadfile/file///2021100419163458.pdfIn PDF document text
  • https://leicht-spb.ru/wp-content/plugins/super-forms/uploads/php/files/1f322d2f2110012fe076901bf18334e8/pubagemiz.pdfIn PDF document text
  • http://masonhn.com/d/files/xilekovafabananozijopa.pdfIn PDF document text
  • http://orthopediedelft.eu/files/24084997195.pdfIn PDF document text
  • https://refakatci.net/userfiles/file/23352383191.pdfIn PDF document text
  • https://vetregistr.com/ckfinder/userfiles/files/refiropesovadupitotalo.pdfIn PDF document text
  • https://pointwebhost.com/calisma2/files/uploads/kagexuxisajijovivabo.pdfIn PDF document text
  • http://pyhunlian.com/uploadfile/file/rodakovomotubo.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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