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 https://pistant.ru/uplcv?utm_term=dragon+sim+online+mod+apk+unlimited+money PDF link annotation

  • http://kaus21.com/userData/board/file/lujivurujatiwibuxikemi.pdfIn PDF document text
  • http://metalzilembo.it/userfiles/files/kidumoz.pdfIn PDF document text
  • http://residenceraffaellotorino.com/userfiles/files/lixiguzo.pdfIn PDF document text
  • https://www.carlosfunes.es/wp-content/plugins/formcraft/file-upload/server/content/files/16136a639c340d---44854834834.pdfIn PDF document text
  • http://korsorlampang.net/user_img/files/17390495585.pdfIn PDF document text
  • http://zjnep.com/ckeditor/ckfinder/userfiles/files/92362478773.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/p6hfag7bd7sg41nuhf5gguprq3/venomupij.pdfIn PDF document text
  • http://asja-doll.ru/userfiles/file/weroza.pdfIn PDF document text
  • http://areawifi.com/DESARROLLO/userfiles/files/90873958749.pdfIn PDF document text
  • http://architettipassarinmarzotto.com/userfiles/files/lomejidafagawazomuv.pdfIn PDF document text
  • http://improntediteatro.it/userfiles/files/13289058946.pdfIn PDF document text
  • http://www.jasfec.com/imgs/uploads/8448782908.pdfIn PDF document text
  • http://russkiivopros.com/images/FCKeditor/file/30007907804.pdfIn PDF document text
  • http://mitsubishilongbien.vn/images/ckeditor/files/jogulojixitegetar.pdfIn PDF document text
  • https://questyme.com/userfiles/file/tezanimugef.pdfIn PDF document text
  • http://vitalchurchesinstitute.com/files/file/jobewozake.pdfIn PDF document text
  • http://mitcostruttori.it/userfiles/files/51019499236.pdfIn PDF document text
  • http://sacoorhealth.pt/site/upload/file/7208458495.pdfIn PDF document text
  • https://www.bouldersudbury.org/wp-content/plugins/formcraft/file-upload/server/content/files/161390b067c4cd---zisozuvomax.pdfIn PDF document text
  • https://sweetestspaparty.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613b64a7d291f---6009076414.pdfIn PDF document text
  • http://zoscm.zohukum.com/ckfinder/userfiles/files/82446141734.pdfIn PDF document text
  • https://adikmanis.com/contents/files/xedubufemilefu.pdfIn PDF document text
  • http://ksiclubcom.ksiclub.org/svnprojects/DHD/Source/images/files/gumoxagijuguzi.pdfIn PDF document text
  • http://studiopedrazzini.eu/userfiles/files/70778681683.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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