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.
• Embedded JS stream low PDF_JS
  PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
• 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://gold-carsales.com/js/upload/files/33852282313.pdf In PDF document text

  • http://kondicionery-domodedovo.ru/upload_picture/file/11880618453.pdfIn PDF document text
  • http://zgkimsteszew.pl/img/upload/files/32365679658.pdfIn PDF document text
  • http://leaguengn.com/userfiles/file///buvifunuz.pdfIn PDF document text
  • http://mko-yug.ru/wp-content/plugins/super-forms/uploads/php/files/4855d6a423be042d356bf98f212d1f4d/80983565639.pdfIn PDF document text
  • http://satcomlink.com/userData/board/file/xuregatusorekuvulazigubak.pdfIn PDF document text
  • http://career-id.org/ckfinder/userfiles/files/dowekazoxel.pdfIn PDF document text
  • http://uyaviation.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612fddb151dc6---49113470685.pdfIn PDF document text
  • http://les-dvorik.ru/userfiles/file/resusumabule.pdfIn PDF document text
  • https://austdoorcaocap.com/upload/files/rerotobenepug.pdfIn PDF document text
  • https://cliniquemyo.com/userfiles/file/65010170723.pdfIn PDF document text
  • https://prtl.pl/userfiles/file/tizekonolenotefanimimidi.pdfIn PDF document text
  • http://c2ctrading.org/cms_upload/files/juduxipataj.pdfIn PDF document text
  • http://lukasikgroup.pl/Image/files/wuzavalobatoxamifuwido.pdfIn PDF document text
  • http://muszempilla.com/files/file/64727615634.pdfIn PDF document text
  • http://sh8ke.com/wp-content/plugins/formcraft/file-upload/server/content/files/16131f1a0b4f4d---999052329.pdfIn PDF document text
  • http://quetthe.com/upload/files/41488359661.pdfIn PDF document text
  • http://hidrometa.com/images_upload/files/patikiwetudajasemewetufib.pdfIn PDF document text
  • http://pamatudarbai.lt/ckfinder/userfiles/files/72990303663.pdfIn PDF document text
  • https://www.kadeavenue.com/wp-content/plugins/super-forms/uploads/php/files/73cd471ff7f9fa0d873e1a7da7f654a8/xotuvitexebage.pdfIn PDF document text
  • http://carraracucinecomponibilitrapani.it/userfiles/files/80604380049.pdfIn PDF document text
  • http://compie.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16140a4bbb7471---fegesisokowubapefo.pdfIn PDF document text
  • http://autosoftware.company/autoresponders_images/files/89613236250.pdfIn PDF document text
  • https://www.barefoothoa.com/webroot/js/ckfinder/userfiles/files/dejebak.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BvfzZFkJO3s/uplcv?utm_term=gold+coast+garage+salePDF link annotation
  • https://unimedbelem.com.br/painel_template/assets/global/plugins/ckfinder/userfilesfiles/levefoza.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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