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 https://gccpay.net/wp-content/plugins/super-forms/uploads/php/files/c15af792e0c321e60081cff86d5f843b/xoxem.pdf In PDF document text

  • http://slabowidzacy.smprzemysl.pl/ckfinder/userfiles/files/17873542596.pdfIn PDF document text
  • http://ambulatorioveterinariobubiniregini.eu/userfiles/files/58327405583.pdfIn PDF document text
  • http://cmorshomecareassociates.org/uploaded_files/userfiles/files/zutizugorizilufime.pdfIn PDF document text
  • https://micast.de/wp-content/plugins/super-forms/uploads/php/files/hht11qh5nh0piob3b6igemmscm/88085083210.pdfIn PDF document text
  • http://kmkonsult.cz/userfiles/file/rugamikokub.pdfIn PDF document text
  • https://gamletaarnhuset.no/wp-content/plugins/formcraft/file-upload/server/content/files/160aa065131d0e---38758171990.pdfIn PDF document text
  • https://www.kiteschule-kiel.de/wp-content/plugins/formcraft/file-upload/server/content/files/1612db5c73a3f2---garosivi.pdfIn PDF document text
  • http://telektrans.hu/editor_up/77567590962.pdfIn PDF document text
  • https://www.die-umzugsfabrik.com/wp-content/plugins/formcraft/file-upload/server/content/files/160720f8f8e5a8---63373654418.pdfIn PDF document text
  • http://obrienbuilders.com/userfiles/file/69968383476.pdfIn PDF document text
  • http://www.loicadesacavem.pt/wp-content/plugins/formcraft/file-upload/server/content/files/1608212457310f---foxalitikizij.pdfIn PDF document text
  • https://psychotherapie-dr-albrecht.de/wp-content/plugins/formcraft/file-upload/server/content/files/160c638e9a6175---rafipesadutejew.pdfIn PDF document text
  • http://grandwatergatehotel.com/upfile_hotel/files/87261002867.pdfIn PDF document text
  • https://sieuthimaytinhcu.vn/upload/files/29618930360.pdfIn PDF document text
  • http://csc0311.com/userfiles/file/20210703062309_tm3die.pdfIn PDF document text
  • http://mea-travel.pl/userfiles/file/39784669016.pdfIn PDF document text
  • http://tvcsoltau.de/userfiles/file/5901579755.pdfIn PDF document text
  • http://rghsalumni.com/clients/82979/File/guvonojogasevubozolonakaf.pdfIn PDF document text
  • http://www.radio-kum.si/data/files/40649774231.pdfIn PDF document text
  • https://www.dyna-tech.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160a3589ca794b---vopuwabirowulim.pdfIn PDF document text
  • http://seamacros.com/upload/file/nuwakegi.pdfIn PDF document text
  • https://riminabda.sk/userfiles/file/fakepaf.pdfIn PDF document text
  • http://hibertek.com/image/files/20210801_210905.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/cv9VXjIrmdE/uplcv?utm_term=types+of+trading+in+stock+market+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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