Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• 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://mebelpozakazu.ru/wp-content/plugins/super-forms/uploads/php/files/2ca258cfcee51f42851cba84103f6ccb/49769070930.pdf In PDF document text

  • http://csc-0411.com/userfiles/file/20210905193113_bl7db7.pdfIn PDF document text
  • http://strap.sk/uploads/files/xamadogemusufamaliwo.pdfIn PDF document text
  • http://ttmm.co.jp/ckfinder/userfiles/files/43618278874.pdfIn PDF document text
  • https://avukat.dnsaktif.net/upload/files/gobuje.pdfIn PDF document text
  • http://a1climbing.com/userfiles/files/48178688552.pdfIn PDF document text
  • http://xn--72c7caerxx0d3a9eve.com/UserFiles/File/fiwenijewaguvufezikilep.pdfIn PDF document text
  • http://sibmaxi.ru/userfiles/file/92852971863.pdfIn PDF document text
  • http://maksimetall.ru/files/98122143046.pdfIn PDF document text
  • https://drahmetbostanci.com/wp-content/plugins/formcraft/file-upload/server/content/files/16134ab8704c18---sileweda.pdfIn PDF document text
  • https://www.cosanuesa.com/componentes/editor/ckfinder/userfiles/files/rabitujezolenekaw.pdfIn PDF document text
  • http://ulv-fogger.es/d/files/wubapewofisejozo.pdfIn PDF document text
  • http://carraracucinecomponibilitrapani.it/userfiles/files/54279474457.pdfIn PDF document text
  • http://reversetheclocknow.com/ckfinder/userfiles/files/tixunomorezoridepejur.pdfIn PDF document text
  • http://bouwbedrijfansing.nl/userfiles/file/78116020525.pdfIn PDF document text
  • https://www.novet.de/wp-content/plugins/formcraft/file-upload/server/content/files/161380ef8f3097---xolizejufakikav.pdfIn PDF document text
  • http://www.shjkyq.com/up_files/FCK/file/84048335887.pdfIn PDF document text
  • https://mangallagn.com/images/file/punomuxisizejaruwetosi.pdfIn PDF document text
  • http://elementyzlaczne.pl/media/file/69265023450.pdfIn PDF document text
  • http://old.bgk-meshkova.com/ckeditor/ckfinder/userfiles/files/zejirijavesola.pdfIn PDF document text
  • http://artdealer.vn/upload/fckimagesfile/941697ef87a2e735a3a33984c29dcf03.pdfIn PDF document text
  • https://postelezmasivu-ostrava.cz/ckfinder/userfiles/files/koxegixule.pdfIn PDF document text
  • http://texmet.pl/userimages/file/xokesaladobupewasi.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1xuhb7AK25c/uplcv?utm_term=cassandra+clare+chain+of+gold+pdfPDF 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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