Malicious PDF — malware analysis report

Heuristics 8

• 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 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.
• Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
  PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
• 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://jeanmarcrobion.fr/userfiles/file/xofazufimomudakez.pdf In PDF document text

  • http://premiumresourcing.com/wp-content/plugins/formcraft/file-upload/server/content/files/161442bbc81f60---fodoxuluterabozakeka.pdfIn PDF document text
  • http://www.platformliften.info/wp-content/plugins/formcraft/file-upload/server/content/files/1613866b50db9d---sanifu.pdfIn PDF document text
  • http://studiomistretta.com/userfiles/files/xuzexitixowasagonenigeg.pdfIn PDF document text
  • http://104.156.58.56/~web2inbox/wp-content/plugins/formcraft/file-upload/server/content/files/16135a5b8655b6---nuvotutusobo.pdfPDF link annotation
  • https://flims.atelierleuthold.ch/userfiles/files/pexubajewelizolutojename.pdfIn PDF document text
  • http://leebyunghun.kr/new/upload/board/files/55975923515.pdfIn PDF document text
  • http://studio-castiglioni.com/userfiles/files/94357248785.pdfIn PDF document text
  • http://vektor-bezpeki.com/userfiles/files/newefizojabixolireduguki.pdfIn PDF document text
  • http://ambulatorioveterinariovianello.eu/userfiles/files/44182438277.pdfIn PDF document text
  • https://akanaymatbaa.com/calisma2/files/uploads/4741970108.pdfIn PDF document text
  • http://assushop.com/userfiles/assushop.com/file/xamizutaxebikazed.pdfIn PDF document text
  • https://www.mercato.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1614033d06d4d5---1403716995.pdfIn PDF document text
  • http://baheth24aqari.com/ckfinder/userfiles/files/xugifozopajozat.pdfIn PDF document text
  • http://www.radanhorse.com/resource/files/40741942007.pdfIn PDF document text
  • http://autokolcsonzoszolnok.hu/admin/fck_upload/file/vowixojepowumuxidud.pdfIn PDF document text
  • http://dr-temt.ru/images/file/zodusuritukafovesisek.pdfIn PDF document text
  • https://ethnicminorities.heephong.org/ethnicminorities/cmsadmin/ckfinder/files/32686226384.pdfIn PDF document text
  • http://vindindex.nl/images/uploads/66197983665.pdfIn PDF document text
  • http://tinhdaurosa.com/Images_upload/files/59007021903.pdfIn PDF document text
  • http://max-metal.pl/gfx/file/xuwazomomikewab.pdfIn PDF document text
  • https://distriparkbotlek.nl/userfiles/files/51362379937.pdfIn PDF document text
  • http://friulanamarmi.it/images/file/71067522016.pdfIn PDF document text
  • http://760_709737661.mildmedia-dev.eu/uploads/userfiles/files/36246334226.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/fzgW7-mxBc0/uplcv?utm_term=express+vpn+apk+modPDF 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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