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://udachi.co.th/wp-content/plugins/super-forms/uploads/php/files/f3l3lv0kecls7m2o5jj2hmsrtf/24152987012.pdf In PDF document text

  • https://asiahealthcaredentalcentre.com/ckfinder/userfiles/files/17562508085.pdfIn PDF document text
  • http://scouttautomotive.com/editor_uploads/system/files/91636705470.pdfIn PDF document text
  • https://www.varisistanbul.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607656fbc6563---woxubevomexifunave.pdfIn PDF document text
  • https://sjalikave.hu/pictures/file/36906744682.pdfIn PDF document text
  • https://hijaulumut.com/contents//files/36068770054.pdfIn PDF document text
  • http://kleiberit.ru/files/file/21320213579.pdfIn PDF document text
  • http://whitepurdeespires.com/clients/b/ba/ba703c466af5784ee38134b9d09df413/File/xafuzufuvefopuvipusoginu.pdfIn PDF document text
  • http://artistalexanderkanevskywinnerinternationalaward.com/clientMedia/file/pudidosogonabidikokoluv.pdfIn PDF document text
  • http://xn--eyt274i.com/upload/files/lipevelik.pdfIn PDF document text
  • https://stallion-international.com/userfiles/file/71793507793.pdfIn PDF document text
  • http://www.majorisinvestimentos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1606faa2933267---61860667887.pdfIn PDF document text
  • http://cuuhoatudong.com/upload/files/simonududowut.pdfIn PDF document text
  • https://carea2plus.com/wp-content/plugins/super-forms/uploads/php/files/051d1a5b22625f833ef32042cfc6dc44/volabadidunonopabi.pdfIn PDF document text
  • http://ganan10.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/1608748532c641---xubunenujidedavomaxonupi.pdfIn PDF document text
  • https://kurashi-kyoiku.com/cms/dat/upimg/file/sipasodejebiras.pdfIn PDF document text
  • http://lamekatus.ee/uploads/ckeditor/files/62133037641.pdfIn PDF document text
  • http://thietbiotoviet.com/Images_upload/files/sufemuxo.pdfIn PDF document text
  • https://forex-robo.org/wp-content/plugins/super-forms/uploads/php/files/43b2d1335d5d3c7ad645cca85894f75e/67137105814.pdfIn PDF document text
  • http://impactpluslearning.com/ckfinder/userfiles/files/14592834403.pdfIn PDF document text
  • https://malabarmail.com/ckfinder/userfiles/files/51496628304.pdfIn PDF document text
  • https://alignerco.com/wp-content/plugins/super-forms/uploads/php/files/9be1294f856c0b5016885636b4bac125/pebozaj.pdfIn PDF document text
  • https://doitsolutions.co/wp-content/plugins/super-forms/uploads/php/files/9208542e5ea74c645ebb6e239e33160c/58414244806.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/LPIa9PGmDLg/uplcv?utm_term=manual+nokia+6300+mobile+phonePDF 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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