Malicious PDF — malware analysis report

Heuristics 8

• 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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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://irlanc.ru/uplcv?utm_term=what+is+the+android+version+of+redmi+note+8+pro PDF link annotation

  • https://agsposure.org/wp-content/plugins/super-forms/uploads/php/files/64f6fc71586eff544c7546218c7de3c1/54326613792.pdfIn PDF document text
  • http://digilit.ir/basefile/digilitir/files/93551008845.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/bj9ib1dq0a8lhookodd1mriqg7/ximoredariw.pdfIn PDF document text
  • http://dok-vo.ru/userfiles/file/ropodukumajaguzunologaxug.pdfIn PDF document text
  • https://gulfsupremesa.com/ckfinder/userfiles/files/mitanibodisaleji.pdfIn PDF document text
  • http://leap-egypt.com/wp-content/plugins/formcraft/file-upload/server/content/files/16135a4a541c08---dasubokemegokorufo.pdfIn PDF document text
  • http://www.ih-consultant.com/ckfinder/userfiles/files/rifukowibezujodizog.pdfIn PDF document text
  • https://chmelo.hu/sites/default/files/file/filuwerafetided.pdfIn PDF document text
  • https://adtw1.elfjane.com/ckfinder/userfiles/files/momofibup.pdfIn PDF document text
  • http://riversedgefm.com/files/file/90910022514.pdfIn PDF document text
  • http://www.onlinenieuwsbriefversturen.nl/gebruikers/afbeeldingen/zejalivujifoxudite.pdfIn PDF document text
  • https://limsurempat.com/contents/files/10628169499.pdfIn PDF document text
  • https://adikkeempat.com/contents/files/rujezubuv.pdfIn PDF document text
  • http://iscyber.com/userfiles/files/bigojojurefalup.pdfIn PDF document text
  • http://bjavc.com/filespath/files/20210912122619.pdfIn PDF document text
  • https://proia.bg/userfiles/file/75896350603.pdfIn PDF document text
  • https://easy2ticket.com/upload/files/mujegevoduvefobatanaxemej.pdfIn PDF document text
  • http://sinners-party.de/media/file/melekixawibogubagagevuga.pdfIn PDF document text
  • https://amoslodge10.org/ckfinder/userfiles/files/47110784171.pdfIn PDF document text
  • https://www.la-melodie-des-saveurs.fr/ckfinder/userfiles/files/pabutolonudeganune.pdfIn PDF document text
  • http://mustang.tom.ru/jsplugins/ckfinder/userfiles/files/xunezosabivelomexa.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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