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.
• Urgency / deadline lure low SE_URGENCY_LURE
  Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
• 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://inwebjor.ru/uplcv?utm_term=population+education+quiz+bee+questions+with+answers PDF link annotation

  • http://pmdrecycling.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a9be33cad44---3471062412.pdfIn PDF document text
  • https://vmkstroi.ru/wp-content/plugins/super-forms/uploads/php/files/8316ddbe851c438f4af2978557ab33ed/27903516629.pdfIn PDF document text
  • http://vector-mebel.ru/uploads/files/26099426342.pdfIn PDF document text
  • https://actorconseil.com/files/file/jubaxajuzebavexatizokubu.pdfIn PDF document text
  • https://rmdschoolandcollege.com/wp-content/plugins/super-forms/uploads/php/files/hq2pt57jrdnfe7ueo6m9flobq6/judoxebitusi.pdfIn PDF document text
  • http://artistalexanderkanevskywinnerinternationalaward.com/clientMedia/file/64616667695.pdfIn PDF document text
  • http://www.mostex.sk/files/articles/file/xuzixoxupubetosozupise.pdfIn PDF document text
  • http://cbgnfinance.com/userfiles/file/kinejojafo.pdfIn PDF document text
  • http://handbook.hu/upload/page/file/tamutilubu.pdfIn PDF document text
  • https://reparationmobile.net/userfiles/file/41772199984.pdfIn PDF document text
  • http://www.hotel-margherita.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607bcb8e82c8b---36044395942.pdfIn PDF document text
  • http://petswithlove.com/cvsprojects/SSK/Source/2.0.0/images/files/zipana.pdfIn PDF document text
  • http://candemdientu.com/Images_upload/files/vitotafaviwudeji.pdfIn PDF document text
  • http://tareeapartment.com/user_img/files/povapenobapamebonapo.pdfIn PDF document text
  • https://cosmopolitanhotel.eu/uploads/wysiwyg/files/40274785720.pdfIn PDF document text
  • http://www.altrus.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160c4a38f22c07---50585014801.pdfIn PDF document text
  • http://kubak-ubezpieczenia.pl/userfiles/file/jusojavoderez.pdfIn PDF document text
  • https://gz-topstar.com/wp-content/plugins/super-forms/uploads/php/files/3a982bf209414ecedf7b7a4ce50353b3/44774647671.pdfIn PDF document text
  • http://yummyschool.com/_UploadFile/Images/file/mezedesigowegezezi.pdfIn PDF document text
  • https://playgametoday.ru/wp-content/plugins/super-forms/uploads/php/files/e9b2e12ac30a0922a72c79ce71963be6/menanatakepapipe.pdfIn PDF document text
  • http://poorclarescork.ie/images/suvomulas.pdfIn PDF document text
  • http://scro.ru/pic/file/rizetudonigepasuluki.pdfIn PDF document text
  • http://cdhsalumni.com/clients/28864/File/1314120546.pdfIn PDF document text
  • http://www.kidnuri.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a9a00a13513---99777618799.pdfIn PDF document text
  • http://steclotildehorton.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160a3e9e999667---dasifovoto.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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