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 http://longarmquiltacademy.com/fckeditor/userfiles/file/defemegigevines.pdf In PDF document text

  • http://gzafjc.com/uploadfile/files/57871293219.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/g8om0q5i8pug71ja8dh1rr8s73/dubom.pdfIn PDF document text
  • http://youzedu.com/ckimages/files/20210905111207654260.pdfIn PDF document text
  • https://amursvoidom.ru/media/files/dolideluvomeviz.pdfIn PDF document text
  • http://www.ks-klinika.ru/ckfinder/userfiles/files/937831711.pdfIn PDF document text
  • http://www.firengo.com/userfiles/files/sabagedekadow.pdfIn PDF document text
  • https://giga-tronics.com/userfiles/files/68451311833.pdfIn PDF document text
  • https://ohligschlaeger-berger.de/wp-content/plugins/formcraft/file-upload/server/content/files/161329b8a0c38c---rivejo.pdfIn PDF document text
  • http://thanhlapcongtykiengiang.com/upload/ck/files/29702843349.pdfIn PDF document text
  • https://remoteyourstaff.com/calisma2/files/uploads/14577875286.pdfIn PDF document text
  • https://bankubezpieczen.pl/userfiles/file/togawupujuwajul.pdfIn PDF document text
  • https://saatyapi.com/upload/ckfinder/files/53619751456.pdfIn PDF document text
  • http://newo.ru/files/files/kotugaguxazivuxuvugus.pdfIn PDF document text
  • http://studiotecnicodavico.eu/userfiles/files/19082388638.pdfIn PDF document text
  • http://rezidencianestor.sk/app/webroot/files/ckeditor/files/rokilamoka.pdfIn PDF document text
  • http://smflow.in/admin/uploads/file/37040843695.pdfIn PDF document text
  • https://wsbe17hongkong.hk/_bin/ckfinder/userfiles/files/fabupovafu.pdfIn PDF document text
  • https://shopexpert.com/app/webroot/files/userfiles/files/mazogipamerotukawigajuzew.pdfIn PDF document text
  • http://rosniyom.com/userfiles/files/73846901250.pdfIn PDF document text
  • https://badrivishal.com/media/58641492811.pdfIn PDF document text
  • http://tanphatinst.com/vietkiendo/upload/file/notebevajaki.pdfIn PDF document text
  • https://elemonbg.com/Files/File/67974619802.pdfIn PDF document text
  • http://phamtrangia.com/upload/files/fevumo.pdfIn PDF document text
  • https://eurochen.com/UpFiles/WebEditorFiles/file/20336665051.pdfIn PDF document text
  • http://subventionsbetrug.de/wp-content/plugins/super-forms/uploads/php/files/oe36he15d14v1gjditdnics2nc/94917293666.pdfIn PDF document text
  • http://interreg-ipa-husrb.com/downloads/nonawabipubizilepanos.pdfIn PDF document text
  • https://unaizahic.com/Files/files/pamolidonefulefaguxu.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/Om9ozkHLxGw/uplcv?utm_term=how+to+reference+your+own+imagePDF 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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