Malicious PDF — malware analysis report

Heuristics 6

• 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 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://taucaotoccatba.vn/images/news/files/deluzi.pdf In PDF document text

  • https://hoalavender.net/upload/files/73303970913.pdfIn PDF document text
  • https://www.msolartop.cz/wp-content/plugins/formcraft/file-upload/server/content/files/1607fdfbab37d3---42087342677.pdfIn PDF document text
  • https://www.chortho.co.uk/wp-content/plugins/super-forms/uploads/php/files/4br6k41bp59pfg74dg1q2bjlb9/suviwabe.pdfIn PDF document text
  • http://alvit-bk.ru/userfiles/file/29541015686.pdfIn PDF document text
  • http://buergerforum-tirol.at/file/58043773596.pdfIn PDF document text
  • http://www.blackhillsdancecentre.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d9340f29ac9---61183834459.pdfIn PDF document text
  • http://cyc.cz/pictures/clanky/files/gapoluguzupejapuzuzilusip.pdfIn PDF document text
  • http://alvasari.com/wp-content/plugins/formcraft/file-upload/server/content/files/1610bb4a608868---lipaxugurunexoxusazet.pdfIn PDF document text
  • http://tingyi-bnb.com/CKEdit/upload/files/jaxurukemomit.pdfIn PDF document text
  • http://sns-russia.ru/userfiles/file/pifoburinofuxonozumosum.pdfIn PDF document text
  • http://keemunblacktea.cn/uploads/file/040056379567.pdfIn PDF document text
  • http://qhzs88.com/admin/fckeditor_upfiles/file/2021071716210880554.pdfIn PDF document text
  • https://www.marthatrotts.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160724506d9d1d---gidivenizu.pdfIn PDF document text
  • http://tovicetour.com/FileData/ckfinder/files/20210607_5A353F698EAE9737.pdfIn PDF document text
  • https://refundsrefunds.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ac277966b8e---37940162459.pdfIn PDF document text
  • http://www.nisbd.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ccffb4aef23---71479715570.pdfIn PDF document text
  • http://www.chp.pl/ckfinder/userfiles/files/pobotesanupezaruv.pdfIn PDF document text
  • http://smlstripedbass.com/home/rock/public_html/ckfinder/userfiles/files/45833888840.pdfIn PDF document text
  • http://ar-intl.net/wp-content/plugins/super-forms/uploads/php/files/sjeen613qhnckdlgei1vah1l70/29953074613.pdfIn PDF document text
  • https://binarbaidequipment.com/public_html/userfiles/file/23980230116.pdfIn PDF document text
  • http://ccswcd.com/userfiles/file/sajunogutarofafezasaniw.pdfIn PDF document text
  • https://arichaindia.com/userfiles/file/37193467577.pdfIn PDF document text
  • https://nisahanpin.com/calisma2/files/uploads/75399478829.pdfIn PDF document text
  • https://www.federatedlighting.com/wp-content/plugins/super-forms/uploads/php/files/a300964af596fe81161cdcb6e49c2f9f/torowomuw.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/PmAiG5ZyT-k/uplcv?utm_term=commonly+misspelled+words+worksheet+high+schoolPDF 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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