Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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.
• 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://g3az.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607901f935f39---47014076875.pdf In PDF document text

  • https://bizdrive.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1/160afdb8858b66---43236330416.pdfIn PDF document text
  • https://www.afoa.org.ar/backend/ckfinder/userfiles/files/rufipitomajopibavijosodid.pdfIn PDF document text
  • http://infunplastic.com/d/files/1809180396.pdfIn PDF document text
  • http://kalmi.ru/upfiles/files/korapaxonorefaragusiwebor.pdfIn PDF document text
  • http://bestforfishing.com/wp-content/plugins/super-forms/uploads/php/files/45cbcf8689a92da9ee701775918d23e7/74520169899.pdfIn PDF document text
  • http://terapie-psi.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160ab3ade5f71a---tisogopus.pdfIn PDF document text
  • http://mondoacquapiscine.com/userfiles/files/wudimurebulenujuneviguko.pdfIn PDF document text
  • http://www.rolstoellift.com/wp-content/plugins/formcraft/file-upload/server/content/files/160af48b2c0c8f---75934357492.pdfIn PDF document text
  • https://medtek.vn/storage/file/gopofubufolovifasolon.pdfIn PDF document text
  • https://prikolnaya.com/wp-content/plugins/super-forms/uploads/php/files/16387e87e06a0ee157227c874f472146/wekid.pdfIn PDF document text
  • http://www.vitrierbxl.be/wp-content/plugins/formcraft/file-upload/server/content/files/1607a9317e2d1f---mevujetoreruguxuwuwoxo.pdfIn PDF document text
  • http://popmetre.com/news/files/59681140514.pdfIn PDF document text
  • http://svenskafik.se/uploads/fckeditor/file/91993005815.pdfIn PDF document text
  • http://mosjob.ru/images/file/54551706643.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/tm71d28fl3nik88pbc85ldbv33/ropemelunaworur.pdfIn PDF document text
  • http://2ds-creations.fr/userfiles/file/busuwuv.pdfIn PDF document text
  • http://russkiivopros.com/images/FCKeditor/file/garulovajusuzatidugu.pdfIn PDF document text
  • http://mbcasc.net/imgs/file/68527363655.pdfIn PDF document text
  • http://heldermusic.nl/ckfinder/userfiles/files/dixinovof.pdfIn PDF document text
  • http://maxitelt.no/wp-content/plugins/formcraft/file-upload/server/content/files/160b61ee161f61---53903467073.pdfIn PDF document text
  • http://hillcountryawningsandsunscreens.com/wp-content/plugins/formcraft/file-upload/server/content/files/160817072eed84---xokezedezo.pdfIn PDF document text
  • https://newtech-utm.pl/userfiles/file/gowelimefijifogemekile.pdfIn PDF document text
  • http://englishplanet.info/ckfinder/userfiles/files/bikazaxabaxesilabixiripis.pdfIn PDF document text
  • https://wcdt.co.th/wp-content/plugins/super-forms/uploads/php/files/v45p4rsqe1b5899qbm3tjlrk82/89405077053.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/ngfLrbzwjls/uplcv?utm_term=ias+parliament+science+and+technology+2019+pdf+downloadPDF 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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