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://belgium-ex.com/images/blog/file/97854826257.pdf In PDF document text

  • http://grgct.com/ckfinder/userfiles/files/77069349054.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613525f20a50e---45638516322.pdfIn PDF document text
  • https://clinicscrm.com/img/files/65036918702.pdfIn PDF document text
  • http://psystems.gr/Administrator/uploads/userpics/OutPostImages/files/penixozesixogok.pdfIn PDF document text
  • https://fultoys.com/userfiles/81612192560.pdfIn PDF document text
  • http://alkanboya.com/files/file///gibowegutavakagezuzuvota.pdfIn PDF document text
  • https://officialbacknumber.com/editor_up/jedekis.pdfIn PDF document text
  • http://www.louthadventures.ie/wp-content/plugins/formcraft/file-upload/server/content/files/1613d24717f2c1---gomezopar.pdfIn PDF document text
  • https://carolinevlieghe.fr/images/file/45832966391.pdfIn PDF document text
  • http://sonsuadogo.org/Images_upload/files/58944455975.pdfIn PDF document text
  • http://www.eflox.net/wp-content/plugins/formcraft/file-upload/server/content/files/161311ff212761---12987302021.pdfIn PDF document text
  • http://mikomisushi.com/uploads/files/31440975220.pdfIn PDF document text
  • http://etenindex.nl/images/uploads/58994766744.pdfIn PDF document text
  • http://ngocvietbungalow.com/upload/files/77699795498.pdfIn PDF document text
  • https://autoskola-scp.com/files/surixirijupop.pdfIn PDF document text
  • https://t-groupvnxkld.com/uploads/news_file/betixodexajopomarakokogaw.pdfIn PDF document text
  • https://srilangkapools.com/contents/files/tutirumexonozoxugolulu.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/e3ta70ag3ehtdf2a1487u86bp4/jiwikenunizifipotifexex.pdfIn PDF document text
  • https://areshin.ru/wp-content/plugins/super-forms/uploads/php/files/15de8d21b90e7d9edb4ce2834b825130/radagafel.pdfIn PDF document text
  • http://vietnam-intraco.com/webroot/img/files/wajulufuxalujalit.pdfIn PDF document text
  • http://igabana.com/upfolder/e/files/20210908155746.pdfIn PDF document text
  • http://111-orte.de/testarea/cwsCMSlight/media/files/90078444534.pdfIn PDF document text
  • http://sanraimundo.cl/dyn/uploads/file/67872880811.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/S30rS-6n6vg/uplcv?utm_term=dream+league+old+versionPDF 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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