Malicious PDF — malware analysis report

Heuristics 7

• 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.
• 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://archism.ru/uplcv?utm_term=outlook+mail+online PDF link annotation

  • https://quickonboarding.com/wp-content/plugins/super-forms/uploads/php/files/b9573ccdb04f3274b1be8b11ec0dec04/bomajixodun.pdfIn PDF document text
  • http://clinicacomciencia.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160bf5c8eee0e4---fivawabiluza.pdfIn PDF document text
  • https://www.escon.it/wp-content/plugins/super-forms/uploads/php/files/5f7206eccfed488f18bb030d08070d7a/vagidixozak.pdfIn PDF document text
  • http://architects-desk.com/uploadsfile/41722920071.pdfIn PDF document text
  • http://classicalgardenstatues.com/uplds/file/77769655481.pdfIn PDF document text
  • https://homini.eu/wp-content/plugins/formcraft/file-upload/server/content/files/160a185fa110a3---81676973556.pdfIn PDF document text
  • http://cosmosimpex.com/app/webroot/ckfinder/userfiles/files/luzijovijow.pdfIn PDF document text
  • https://icbacademy.com/upload/files/55313931013.pdfIn PDF document text
  • https://ngusacdon.com/upload/files/wusibibovareta.pdfIn PDF document text
  • http://www.chatanakonci.cz/userfiles/file/mesiwegifagujorijiv.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/obn8ugdgplm7c87p5mbut1gvf4/fipimatu.pdfIn PDF document text
  • https://bistro-8.com/wp-content/plugins/super-forms/uploads/php/files/da2438680c7245b2509801a84d0d76a8/17759412741.pdfIn PDF document text
  • https://aftaplan.com/works/peepsparty/html/upload_files/file/71266000880.pdfIn PDF document text
  • https://www.toptalentusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608b08f1a4ac7---wemojezafisepififetu.pdfIn PDF document text
  • https://aryaayur.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609e6e0b5fda4---51958937012.pdfIn PDF document text
  • http://badaranquehablar.com/userfiles/files/jebimofifizeneko.pdfIn PDF document text
  • http://vom-ragnaroek.de/uploads/file/valuruga.pdfIn PDF document text
  • http://ccspevents.com/clients/24998/File/79759391268.pdfIn PDF document text
  • http://rigassprotes.lv/uploadz/file/70958404287.pdfIn PDF document text
  • http://baovephuongtroi.com/vietkiendo/upload/file/9378414940.pdfIn PDF document text
  • http://digilit.ir/basefile/digilitir/files/21123606892.pdfIn PDF document text
  • http://www.festivalmarrakech.info/wp-content/plugins/formcraft/file-upload/server/content/files/1608d9e60b435a---61424094741.pdfIn PDF document text
  • http://al-farh-iq.com/upload/userfiles/file/17274011358.pdfIn PDF document text
  • http://ttccid.com/userfiles/files/12605563118.pdfIn PDF document text
  • http://sculecuacumulator.ro/app/webroot/files/userfiles/files/88760204759.pdfIn PDF document text
  • http://c-amc.com/upload/files/roxalelujemiribuzi.pdfIn PDF document text
  • 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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