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://colafranceschi.it/userfiles/files/90935872957.pdf In PDF document text

  • https://gresathouse.com/wp-content/plugins/super-forms/uploads/php/files/9b713fa73adbd06f92adf4d0361d11d4/7553182064.pdfIn PDF document text
  • http://logenamerica.com/userfiles/file/27212951015.pdfIn PDF document text
  • http://thebankcardservices.com/uploads/files/zojonotuwumu.pdfIn PDF document text
  • http://wohingltd.com/userfiles/85756062475.pdfIn PDF document text
  • http://hmondo.com/userData/board/file/kajanomunovoxevamulobonip.pdfIn PDF document text
  • http://ambulatorioveterinariosantanna.eu/userfiles/files/79712634166.pdfIn PDF document text
  • http://helices-evra.com/userfiles/file/defapovaj.pdfIn PDF document text
  • https://bfull.ru/uploads/files/91353148082.pdfIn PDF document text
  • https://tekdalyapi.com/upload/ckfinder/files/43116424341.pdfIn PDF document text
  • http://aviapartner.biz/js/ckfinder/userfiles/files/42645606939.pdfIn PDF document text
  • http://lineshare.net/upload/files/20210907225811.pdfIn PDF document text
  • http://albarossa.jp/js/upload/files/fotidefosenelulufebuduxo.pdfIn PDF document text
  • https://yournew.site/wp-content/plugins/super-forms/uploads/php/files/86dh4mftapf26lo4ckhv77vvth/jivadugikozenuguwegud.pdfIn PDF document text
  • http://location-appartement-venise.com/italie_documents/files/morisixojusavabaminu.pdfIn PDF document text
  • http://mixmarketing.vn/upload/fck/file/sunidunena.pdfIn PDF document text
  • http://evo-models.com/uploads/userfiles/files/37826059938.pdfIn PDF document text
  • https://www.karelo.com/uploads/File/94111405783.pdfIn PDF document text
  • https://toptenstudy.com/upload/files/BodyFile__613C3481CF719.pdfIn PDF document text
  • http://farmaciafasolis.eu/userfiles/files/xidozakikepa.pdfIn PDF document text
  • https://www.saltriot.com/wp-content/plugins/super-forms/uploads/php/files/6c29312e03ab3fb5650a87402a6d521d/48927154516.pdfIn PDF document text
  • http://yushendesign.com/images_fck/file/1631835106.pdfIn PDF document text
  • http://runhouchem.com/upload/files/92158328485.pdfIn PDF document text
  • http://astmasme.com/userData/board/file/90124889410.pdfIn PDF document text
  • http://archbot.pl/files/file/1574299546.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/Om9ozkHLxGw/uplcv?utm_term=android+studio+64+bit+windows+10+downloadPDF 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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