Malicious PDF — malware analysis report

Heuristics 7

• 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.
• 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://dentalcenterstudio.it/userfiles/files/wexodugoxobabirifijo.pdf In PDF document text

  • http://pnlestari.com/visitbali/image/files/16036989134.pdfIn PDF document text
  • https://tranthachcaodanang.com/uploads/image/files/70368938649.pdfIn PDF document text
  • https://namphuctourist.com/userfiles/file/34114782604.pdfIn PDF document text
  • http://wakingbeauty.com/wp-content/plugins/formcraft/file-upload/server/content/files/16138ba47c6e94---xajera.pdfIn PDF document text
  • http://nhadep30giay.com/uploads/image/files/24163468436.pdfIn PDF document text
  • http://bandbaajabarat.com/ci/userfiles/files/61464118027.pdfIn PDF document text
  • http://bafiti.com/sklep/userfiles/file/zoxusevixonujebusapisezo.pdfIn PDF document text
  • https://dentalrud.com/userfiles/file/fojowutitawe.pdfIn PDF document text
  • http://ttlengenharia.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1613e5189e4de9---sujaxa.pdfIn PDF document text
  • https://aradmissions.com/ci/userfiles/files/87637311962.pdfIn PDF document text
  • http://chip-chup.hu/upload/file/74622422053.pdfIn PDF document text
  • http://www.sanjuktabanerjee.com/fckimages/file/rowoguxowotelawukatike.pdfIn PDF document text
  • http://emotionpicturesfestival.gr/userfiles/file/jideviwiromoridebelo.pdfIn PDF document text
  • http://chnli.tw/CKEdit/upload/files/81628673819.pdfIn PDF document text
  • http://khonggianmang.com/upload/files/12183050693.pdfIn PDF document text
  • http://mosme.org/uploadfile/files/woxinenizadune.pdfIn PDF document text
  • https://www.mybizwebsites.com/wp-content/plugins/formcraft/file-upload/server/content/files/161380aa7b6df7---kezurogewekaforibovev.pdfIn PDF document text
  • http://www.musicmaestrodiscos.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/161342ca347c08---72368177970.pdfIn PDF document text
  • http://vdadanang.vn/app/webroot/assets/files/puzoxesurimovututuja.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/9cc5mvrj5cub5q9qf6gtso32l4/rewopebeluzenube.pdfIn PDF document text
  • http://gpszone.hu/upload/userfiles/file/41990200931.pdfIn PDF document text
  • https://dpengineers.info/admin/userfiles/file/92719751981.pdfIn PDF document text
  • https://master.plus/wp-content/plugins/super-forms/uploads/php/files/03f26981d8619f9b2317186ec2014d2e/ratogodelubogego.pdfIn PDF document text
  • http://svazekobciorlice.cz/userfiles/file/11865374580.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BvfzZFkJO3s/uplcv?utm_term=burger+king+uk+app+apkPDF 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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