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://eltonltd.ru/sites/default/files/uploads/pukoz.pdf In PDF document text

  • http://archimax.ch/dynamic-images/cms/file/1925250870.pdfIn PDF document text
  • http://asesorgubernamental.com/images/file/65205607320.pdfIn PDF document text
  • http://www.expo-hotel.com/english/wp-content/plugins/formcraft/file-upload/server/content/files/160da026139621---podokesowop.pdfIn PDF document text
  • http://tdfinalists.ca/clients/43449/File/73156032990.pdfIn PDF document text
  • https://www.domaine-vrignaud.com/ckfinder/userfiles/files/98879000039.pdfIn PDF document text
  • https://udachi.co.th/wp-content/plugins/super-forms/uploads/php/files/g8p1mjhq7shovcig6psur9fdp6/romejumizexabagis.pdfIn PDF document text
  • http://nhatminhtrading.vn/app/webroot/uploads/files/lakoras.pdfIn PDF document text
  • http://birons.net/wp-content/plugins/super-forms/uploads/php/files/954af0235285f4daf8dd70c52fd79c78/mutilivagakafupu.pdfIn PDF document text
  • https://sambelteri.com/contents//files/36461011092.pdfIn PDF document text
  • http://www.ausafrica.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1607d7f9eb1c59---gawukixejufu.pdfIn PDF document text
  • http://www.srijonihealinghome.com/fckimages/file/46565957977.pdfIn PDF document text
  • http://wallawallahighschool1968.org/clients/75819/File/debujojizudupu.pdfIn PDF document text
  • http://csc0351.com/userfiles/file/20210801081850_ltpj2k.pdfIn PDF document text
  • http://shqinze.net/admin/upimg/file///7130633065.pdfIn PDF document text
  • http://ambulatorioveterinarioscapindandrea.it/userfiles/files/wobejukubiku.pdfIn PDF document text
  • http://tivatijapan.com/uploads/userfiles/file/pagum.pdfIn PDF document text
  • http://duhochmis.com/files/uploaded/files/peperogoja.pdfIn PDF document text
  • http://prttour.ca/FileData/ckfinder/files/20210718_7440824395028F01.pdfIn PDF document text
  • https://iescolumbus.org/wp-content/plugins/super-forms/uploads/php/files/549ad99ccd488578e64a2a713a42e5fd/gibatupigavozaja.pdfIn PDF document text
  • http://www.guaitoli.eng.br/wp-content/plugins/formcraft/file-upload/server/content/files/1606ec1fac1359---51577840272.pdfIn PDF document text
  • http://teaandtiarasottawa.org/clients/e/e8/e8f54e69a7463df9fd0adff13cd8e90f/File/42681105870.pdfIn PDF document text
  • https://olivier-daulte.com/ckfinder/userfiles/files/59066263384.pdfIn PDF document text
  • https://www.fmworks.com.tr/wp-content/plugins/super-forms/uploads/php/files/9smk7566uq42rs4r48pa2hfn2e/kevuna.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/A3Ryygt5BCM/uplcv?utm_term=where+can+i+get+a+passport+photo+taken+during+covidPDF 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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