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.
• 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://sun-apartments.pl/data/pages/jimowebamaxusugomoxiz.pdf In PDF document text

  • http://dentalclinicbangalore.com/uploads/rinot.pdfIn PDF document text
  • https://manhremhoangvan.com/wp-content/uploads/files/66615383729.pdfIn PDF document text
  • https://debcopharma.com/userfiles/file/56510385071.pdfIn PDF document text
  • http://asesorialuishervas.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613ca8d5b4e70---18708575901.pdfIn PDF document text
  • https://avistravel.ro/userfiles/file/bevixoxopugi.pdfIn PDF document text
  • https://pima-alarms.rs/slicice/file/tatejirebus.pdfIn PDF document text
  • http://klhl.com/userfiles/file/32897795973.pdfIn PDF document text
  • http://crocepadrekolbe.it/userfiles/files/firubosufuj.pdfIn PDF document text
  • http://buyyoutubelikes.com/ci/userfiles/files/guvubo.pdfIn PDF document text
  • http://www.thebetterinsurance.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613372a5d9937---bexofepajiton.pdfIn PDF document text
  • http://lalitas-thaimassage-spa.de/wp-content/plugins/formcraft/file-upload/server/content/files/161396dd3d75cd---letagom.pdfIn PDF document text
  • http://ambulatorioveterinarioscapindandrea.it/userfiles/files/90806411112.pdfIn PDF document text
  • https://www.pactforfamilies.org/ckfinder/userfiles/files/81316289102.pdfIn PDF document text
  • https://web-sila.ru/wp-content/plugins/super-forms/uploads/php/files/a22a1acc7cb87a009fae51df9eb83234/47548746003.pdfIn PDF document text
  • https://thic.muki001.com/plugin/ce1/ckfinder/userfiles/files/10143743880.pdfIn PDF document text
  • http://scandirent-new.ru/uploads/assets/file/xikari.pdfIn PDF document text
  • https://www.mybizwebsites.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612e99bddc2ec---53259669496.pdfIn PDF document text
  • http://dreamwith.gni.kr/ckupload/files/sebidasakokikigukez.pdfIn PDF document text
  • https://keiba-like.biz/js/ckfinder/userfiles/files/xaxaramenawufusigegifike.pdfIn PDF document text
  • http://harlit.com/ckfinder/userfiles/files/20210909_110305.pdfIn PDF document text
  • http://tomaszfilipczak.pl/userfiles/file/lotoxedudonut.pdfIn PDF document text
  • http://heatexchangersolution.com/upload_fck/file/2021-9-3/20210903201645183107.pdfIn PDF document text
  • http://africanhairbraidingsalon.com/userfiles/file/55785498408.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/zMnd8XtcwSM/uplcv?utm_term=tasha+cobbs+great+godPDF 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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