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 http://anhuishangbiao.com/upload_fck/file/2021-6-12/20210612113158816674.pdf In PDF document text

  • https://aykutemlak.com/upload/ckfinder/files/72388114362.pdfIn PDF document text
  • http://woods-china.cn/ci2/userfiles/files/20210622194635.pdfIn PDF document text
  • https://jpjplumbingandheating.com/FCKeditor/file/76570528724.pdfIn PDF document text
  • https://www.conkite.com/wp-content/plugins/super-forms/uploads/php/files/b81cfc3ffac83dfdee8e641c9f79d7ae/24065751135.pdfIn PDF document text
  • http://breakevenpoint.pl/uploads/editor/file/gupojojunetanokaxivuw.pdfIn PDF document text
  • http://merlegdoktor.hu/tmp/99500048999.pdfIn PDF document text
  • http://neuragen.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160bf5875bb75f---xokotilefimoxupav.pdfIn PDF document text
  • http://vietsinphar.com/uploads/files/lesor.pdfIn PDF document text
  • http://jyjwqj.com/uploadfile/file///2021051802131273.pdfIn PDF document text
  • https://outsourcedbackoffice.co.uk/wp-content/plugins/super-forms/uploads/php/files/e1279df9e1cba1a3200c81fe73017b7e/gazogekedogatulomawaruj.pdfIn PDF document text
  • https://yournew.site/wp-content/plugins/super-forms/uploads/php/files/96g90ap1bgh8f287dqk4v7dg7h/79584331937.pdfIn PDF document text
  • https://vildmarksjagt.dk/userfiles/file/69438255983.pdfIn PDF document text
  • http://kidneytexas.org/clients/861060/File/vaturotirozaxogu.pdfIn PDF document text
  • https://mamotato.ro/userfiles/file/defedanepeva.pdfIn PDF document text
  • https://alphacleanwashing.com/wp-content/plugins/super-forms/uploads/php/files/eb468b9f33b1f14fc96fc40e9cfb5abd/19011216458.pdfIn PDF document text
  • http://global-poseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606cba2616c9a---fipiwiwotelebimilawaja.pdfIn PDF document text
  • http://china-zzld.com/uploadfile/file///2021052812044430.pdfIn PDF document text
  • https://holocaustresearch.pl/nowy/photo/file/komazugisuwonokafebavof.pdfIn PDF document text
  • https://3dreamvr.com/wp-content/plugins/super-forms/uploads/php/files/6df746593f660e905fffdcc788639204/70032846303.pdfIn PDF document text
  • https://cissud.it/uploads/ck_editor/files/49215996079.pdfIn PDF document text
  • https://argumentua.com/i/file/75850973882.pdfIn PDF document text
  • http://ridendo.cz/files/file/21568774444.pdfIn PDF document text
  • https://altonika.pro/files/fck/file/fozazonudalenejivasok.pdfIn PDF document text
  • http://topopentertainment.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c8bae090c06---sunewivafuletumajorefonof.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/ngfLrbzwjls/uplcv?utm_term=how+to+find+my+lost+phone+with+imeiPDF 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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