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://allytemp.ru/uplcv?utm_term=vaccines+are+made+up+of PDF link annotation

  • http://ipmarketing.net/FCKeditor/editor/filemanager/connectors/userfiles/file/zasosug.pdfIn PDF document text
  • https://dichocungtoi.com/userfiles/file/xixadifejososugeluwiz.pdfIn PDF document text
  • https://eduinfinite.com/wp-content/plugins/super-forms/uploads/php/files/fca4dfca278cef0cec118d916fe0c39a/mexapapixowatevugeza.pdfIn PDF document text
  • http://amunt.madteam.net/ckfinder/userfiles/files/remowidixerodujapixobu.pdfIn PDF document text
  • https://cristiandellavedova.com/wp-content/plugins/super-forms/uploads/php/files/9fa5efba152cc500ad145e7aae550ddc/lejabilanisunexexuganujit.pdfIn PDF document text
  • http://babyindex.nl/images/uploads/29684222242.pdfIn PDF document text
  • https://delphin-restaurant.com/ckfinder/upload/files/kevafi.pdfIn PDF document text
  • https://chingchia.com/uploads/files/202109210535516832.pdfIn PDF document text
  • https://xn--1--8kcai1ck2bs.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/e0b82f2920d05d6d3ad67d60d168d839/19101007793.pdfIn PDF document text
  • https://biocenfis.es/uploads/assets/file/45060627093.pdfIn PDF document text
  • https://topinsolventa.ro/userfiles/file/54931041462.pdfIn PDF document text
  • http://phongthuyphatloc.com/luutru/files/97018073157.pdfIn PDF document text
  • http://www.festivalmarrakech.info/wp-content/plugins/formcraft/file-upload/server/content/files/1614f4b2cabf43---19728772310.pdfIn PDF document text
  • http://www.feniuniversity.edu.bd/app/webroot/ckfinder/userfiles/files/18737617332.pdfIn PDF document text
  • http://foto-recepty.sk/images/fotky/55700168098.pdfIn PDF document text
  • http://modernplating.com/userfiles/file/29479957600.pdfIn PDF document text
  • https://togelunited4d.com/contents/files/38858012264.pdfIn PDF document text
  • http://vektorma.ru/uploads/assets/file/lobetozexi.pdfIn PDF document text
  • http://irpuyesh.com/cache/fck_files/file/3903334644.pdfIn PDF document text
  • https://theipbuzz.com/images/file/dodamexeguwev.pdfIn PDF document text
  • http://topup-fight.com/ckfinder/userfiles/files/70585179250.pdfIn PDF document text
  • http://jedwines.com/cmsCart/upload/file/27663565740.pdfIn PDF document text
  • https://eatorhours.org/e-bussiness/fckimages/file/96370201573.pdfIn PDF document text
  • http://clinicaveterinariacittadivignola.com/userfiles/files/nuwuzitagadimat.pdfIn PDF document text
  • http://0985028898.kad.tw/kads/ckfinder/userfiles/files/furatej.pdfIn PDF document text
  • http://tech-sub.com/userfiles/file/35326756313.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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