Malicious PDF — malware analysis report

Heuristics 8

• 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.
• Embedded JS stream low PDF_JS
  PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
• 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://cerezolorente.com/files/cerezolorente/_repo/file/kezaxusorubixexixevepo.pdf In PDF document text

  • https://yucekalipmakina.com/tsrm1/img/userfiles/file/74270702290.pdfIn PDF document text
  • https://flexi-cms.com/uploads/file/volaxazalutilino.pdfIn PDF document text
  • http://superplasticizer.cn/d/files/39984887612.pdfIn PDF document text
  • http://www.thelawchamber.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c7950fdc2e5---wafizumulitafajekideveb.pdfIn PDF document text
  • http://ophtalmic-overnight.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1607885cfadd2a---1954979879.pdfIn PDF document text
  • https://neavocats.com/wp-content/plugins/super-forms/uploads/php/files/2ff7869900b1943ab630a4414743e63c/72467956879.pdfIn PDF document text
  • http://alexandraharris.com/clients/36054/File/72681071277.pdfIn PDF document text
  • https://www.elementstraining.co.uk/wp-content/plugins/super-forms/uploads/php/files/c45s98qd299b6m86iem5oigida/kafelukexaguxaj.pdfIn PDF document text
  • http://files.ibiza-ferien.de/file/mogujijowunirokiromiw.pdfIn PDF document text
  • https://dolphinsolutions.net/ckfinder/userfiles/files/59323725137.pdfIn PDF document text
  • http://ngor2-3.com/file_media/file_image/file/fejujol.pdfIn PDF document text
  • https://www.diktu.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ad75b2aa9d1---37340721238.pdfIn PDF document text
  • http://sushinamu.com/uploads/files/93575423124.pdfIn PDF document text
  • https://bhavanarayanaswamy.org/userfiles/file/27658596739.pdfIn PDF document text
  • http://air-con.ru/upload/files/89078416939.pdfIn PDF document text
  • https://ivfnna.gr/wp-content/plugins/super-forms/uploads/php/files/480a383741d7e1bc8ebeaf3dc18e6db5/94831092880.pdfIn PDF document text
  • https://unosms.us/userfiles/file/6566486654.pdfIn PDF document text
  • http://drive4smilesontario.com/clients/e/ed/ed023a0734c265ca673a92d1d81de675/File/21112940654.pdfIn PDF document text
  • http://barrarioservicos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1608284b7a1358---terikitafepatizepenodedaw.pdfIn PDF document text
  • http://ambulatorioveterinariopisillibertozzi.eu/userfiles/files/58456230641.pdfIn PDF document text
  • http://rogersdesignhouse.com/uploads/files/87658319815.pdfIn PDF document text
  • https://linlinline.biz/js/ckfinder/userfiles/files/fesenepibetaju.pdfIn PDF document text
  • http://lpsa.cz/userfiles/file/tonawuxelepinojozudijafe.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/ngfLrbzwjls/uplcv?utm_term=neuroradiologia+interventistica+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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