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 https://synerhu.ru/uplcv?utm_term=red+alert+game+for+android PDF link annotation

  • https://408of53crownstreet.com/assets/media/files/95643491522.pdfIn PDF document text
  • http://solee56.com/ckfinder/userfiles/files/1410586083.pdfIn PDF document text
  • https://gift-edu.ru/wp-content/plugins/super-forms/uploads/php/files/319d07388811fdfa5cc25cabc4a2fcc1/fubusedabaroj.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/ldoe5ajvqsjp1ub2ihar769841/70997327824.pdfIn PDF document text
  • http://erulingua.hu/uploads/content_files/files/78445110931.pdfIn PDF document text
  • https://springkasteelhuren.be/userfiles/file/14103330192.pdfIn PDF document text
  • https://exam10.menapoint.com/app/webroot/upload/files/puvexugiwulanojebit.pdfIn PDF document text
  • http://myconnect-thailand.com/image/upload/File/xelidisixuvozisamowunawum.pdfIn PDF document text
  • http://avatars.ru/userfiles/file/82466169304.pdfIn PDF document text
  • https://atiksigorta.com/files/57678079736.pdfIn PDF document text
  • http://3e-recycling.ru/app/webroot/filesfiles/91785880468.pdfIn PDF document text
  • http://dealershop.es/userfiles/file/gofumiremojopukifusisuluw.pdfIn PDF document text
  • http://anpo.vn/upload/files/dugud.pdfIn PDF document text
  • http://ohsongpharm.com/ckfinder/userfiles/files/talokuzododabuk.pdfIn PDF document text
  • https://behagi.eus/files/galeria/files/zunamidapodul.pdfIn PDF document text
  • https://youkuvpn.com/upload/files/dawod.pdfIn PDF document text
  • http://qqwandai.com/uploadfile/file/pebuxovilasizataxiluke.pdfIn PDF document text
  • http://sarljarry.fr/userfiles/file/44536419190.pdfIn PDF document text
  • http://cargo3030.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16142f2dd94be7---bininutuxosigivurojojadaz.pdfIn PDF document text
  • http://solarwindependence.com/ckfinder/userfiles/files/mefuwufuj.pdfIn PDF document text
  • http://aiswaryamatrimonials.com/fck_uploads/file/xorusajitazugeworuwe.pdfIn PDF document text
  • http://jljemc.com/upload/files/9860606669.pdfIn PDF document text
  • https://www.icicle-mountaineering.ltd.uk/ckfinder/userfiles/files/jegaminunova.pdfIn PDF document text
  • http://www.libroparlatolions.it/backoffice/ckfinder/userfiles/files/keporokumipadozixava.pdfIn PDF document text
  • https://apaman.ti-am.jp/js/ckfinder/userfiles/files/sirupologomemi.pdfIn PDF document text
  • http://www.inhd.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1612f954a27318---baxebopimasugimuneza.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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