Malicious PDF — malware analysis report

Heuristics 7

• 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.
• 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://zhuoer.ltd/userfiles/file/duzusobosegi.pdf In PDF document text

  • https://angel-juicer.com/FileData/ckfinder/files/20210723_0F4AB3C157B3B9B9.pdfIn PDF document text
  • http://btfa.tw/upload/files/23309939943.pdfIn PDF document text
  • https://aksusu.com/upload/files/mativis.pdfIn PDF document text
  • http://lnshiyue.com/userfiles/file/20210725213620_1895487903.pdfIn PDF document text
  • http://sieuthivatlieuhoanthien.com/upload/files/berinos.pdfIn PDF document text
  • http://sherwoodonionfestival.com/ckfinder/userfiles/files/ladakifixidujafelajor.pdfIn PDF document text
  • https://christembassyromford.org/wp-content/plugins/super-forms/uploads/php/files/8d016df96b71f2795e87df0de13d7e17/balobezarunanutax.pdfIn PDF document text
  • http://aberdeeneyes.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1608159c010968---62539674490.pdfIn PDF document text
  • http://eduomania.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aa8396bc4da---65756326722.pdfIn PDF document text
  • http://lichnyiybrand.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16079556d07b5c---90605810781.pdfIn PDF document text
  • https://icon-studios.com/userfiles/file/janukiferideginazes.pdfIn PDF document text
  • https://spazmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ad8e6368bb9---sivebojokagejakonubefija.pdfIn PDF document text
  • http://ambulatorioveterinariosantanna.eu/userfiles/files/gimetefuwadapejonodina.pdfIn PDF document text
  • http://cheapneasytrafficschool.com/CheapNEasyTrafficSchool/pa/trainstation/uploads/image/file/86304949659.pdfIn PDF document text
  • http://ks-system.co.uk/ckfinder/userfiles/files/nineli.pdfIn PDF document text
  • http://ddservice-bmw.pl/userfiles/file/kuvenesikotox.pdfIn PDF document text
  • http://aftp.bg/userfiles/file/setazakevaloduxurefe.pdfIn PDF document text
  • http://blackshirts1962.com/clients/f/f2/f245580d3072b78cda2271cf7a7e3f61/File/30351430514.pdfIn PDF document text
  • http://branonperformance.com/ckfinder/userfiles/files/bipilukex.pdfIn PDF document text
  • https://www.lokalesichtbarkeit.de/wp-content/plugins/super-forms/uploads/php/files/v2b3eapv35581oreqb29n27a2v/zumilopiroxopogofasekas.pdfIn PDF document text
  • http://diversecityuk.com/userfiles/file/32366706183.pdfIn PDF document text
  • http://www.bridalchapel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b81a85e4990---tawinez.pdfIn PDF document text
  • http://instant-image.net/UserFiles/Site/File/73352692604.pdfIn PDF document text
  • http://ukrainski-rosyjski.pl/userfiles/file/96729145062.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/PmAiG5ZyT-k/uplcv?utm_term=beginner+strength+training+program+pdfPDF 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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