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
• Malformed active-content stream length medium PDF_MALFORMED_EXPLOIT_STREAM_LENGTH
  A PDF stream that carries active/exploit-looking content has a declared /Length that does not match the recovered stream body. Malformed stream boundaries and length mismatches are common parser-evasion/supporting evidence around Reader exploit streams.
• 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://pistant.ru/uplcv?utm_term=what+is+the+best+post+hole+digger PDF link annotation

  • https://larrialdiak.es/files/galeria/files/wumegogilerupez.pdfIn PDF document text
  • https://chamsocmuihong.com/wp-content/plugins/super-forms/uploads/php/files/0gc3nepfssc923sd0c889jtkna/7732311080.pdfIn PDF document text
  • http://victorylimo1.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d61793e52c---rejagimamosidijo.pdfIn PDF document text
  • https://www.hit-education.com/wp-content/plugins/super-forms/uploads/php/files/o2ago3r6893rk04nupri24nuv1/rajininufebo.pdfIn PDF document text
  • http://runbo.net/upfiles/files/16259082011179.pdfIn PDF document text
  • http://ebsenglish.net/_UploadFile/Images/file/15567151045.pdfIn PDF document text
  • http://busanpc1.com/upload/fckeditor/file/63808092352.pdfIn PDF document text
  • https://subarini.ro/mm/file/perufokalab.pdfIn PDF document text
  • http://ednak.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609987839aaad---laxidoridose.pdfIn PDF document text
  • https://steklo-shik.ru/userfiles/file/zoferexuzitoze.pdfIn PDF document text
  • https://spencershaulageltd.co.uk/wp-content/plugins/super-forms/uploads/php/files/91120db1b92a762e5feb7f321f8478ab/wuwokata.pdfIn PDF document text
  • http://wang023spa.com/userfiles/202106file/2021061718341270554.pdfIn PDF document text
  • http://tevukasveza.lt/ckfinder/userfiles/files/3615830048.pdfIn PDF document text
  • http://i-daa-wl.de/userfiles/90319633561.pdfIn PDF document text
  • http://sva-jeanroze.com/xmedia/file/dolazunonuxi.pdfIn PDF document text
  • https://tsydesign.com/userfiles/jws/files/4966206548.pdfIn PDF document text
  • http://studioingegneriavaragnolo.com/userfiles/files/36322903310.pdfIn PDF document text
  • https://elicopter-de-inchiriat.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160b74d7001c59---68422114974.pdfIn PDF document text
  • http://bioterapiazabiegi.pl/obrazy/file/15570012924.pdfIn PDF document text
  • http://dabaizhongxue.com/upload_fck/file/2021-7-2/20210702063853511531.pdfIn PDF document text
  • http://veronicanealhome.com/wp-content/plugins/formcraft/file-upload/server/content/files/2/1606d5e898faed---sofuxanamasirejerewi.pdfIn PDF document text
  • https://thriveelearning.com/wp-content/plugins/super-forms/uploads/php/files/91978e326a6fb367f126908336e8ebda/83465873214.pdfIn PDF document text
  • http://scpt.it/userfiles/files/sarose.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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