Malicious PDF — malware analysis report

Heuristics 8

• 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.
• 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 https://irlanc.ru/uplcv?utm_term=the+sharper+image+smart+universal+jumbo+remote+manual PDF link annotation

  • https://www.tanyadantus.com/wp-content/plugins/super-forms/uploads/php/files/6858ffb308c13b01cd8df5caf2eef880/33910527863.pdfIn PDF document text
  • http://hkalc.com/userfiles/gosolido.pdfIn PDF document text
  • https://primeodontorj.com/wp-content/plugins/super-forms/uploads/php/files/f60933ba291f6a3d373b67e6de640302/77023682294.pdfIn PDF document text
  • http://www.argentum.com/wp-content/plugins/super-forms/uploads/php/files/qf1tnidu2scn5m5egijcrlj2g4/narafuvo.pdfIn PDF document text
  • http://gasthaus-steinkirchen.de/img/editor/file/gigaposorax.pdfIn PDF document text
  • http://www.miamiairportlimo.net/wp-content/plugins/formcraft/file-upload/server/content/files/160861f8fdce8e---tisofegizuziwupos.pdfIn PDF document text
  • http://cuuhoatudong.com/upload/files/lokivizurafusagipep.pdfIn PDF document text
  • http://doublehappyvstheinfinitesadness.com/wp-content/plugins/formcraft/file-upload/server/content/files/160769fc552add---milukafuzalijebomefirurid.pdfIn PDF document text
  • http://www.rec39.ru/wp-content/plugins/super-forms/uploads/php/files/0f99815953990e5a54b6ef8830473e39/vonegelopumu.pdfIn PDF document text
  • https://eclipsetheaters.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c5dd1d5a5b7---nenobajut.pdfIn PDF document text
  • http://dragonera.cn/admin/userfiles/file/28634450144.pdfIn PDF document text
  • https://nbtele.com/en/cache/fck_files/file/23602604394.pdfIn PDF document text
  • https://gfow.om/wp-content/plugins/super-forms/uploads/php/files/4r5qddqk23l8b3iloo8onbg11u/12986112048.pdfIn PDF document text
  • http://principessavencanice.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b97a6aa818b---vegetokapo.pdfIn PDF document text
  • https://eobliecky.sk/userfiles/file/48539450076.pdfIn PDF document text
  • http://mdknoodles.co/uploads/files/kejozukanagiwopizudonozu.pdfIn PDF document text
  • http://smartmedicaleg.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d01d68b8d6---mewowitemox.pdfIn PDF document text
  • http://classicalgardenornaments.com/uplds/file/rawosunuxuzomi.pdfIn PDF document text
  • http://automsystem.com/UploadFile/file/20210507102505146.pdfIn PDF document text
  • http://dhf-china.com/d/files/jezoboxamewisivobe.pdfIn PDF document text
  • http://skyrunarser.com/js/fckeditor/editor/filemanager/connectors/php/connector.php/upfiles/file/210628035910382368ayw23y.pdfIn PDF document text
  • https://amrapalispot.com/userfiles/file/63703955938.pdfIn PDF document text
  • https://vuaship.com/wp-content/plugins/super-forms/uploads/php/files/3gclo14fjs00ta7hsjhhuem9cm/40001489874.pdfIn PDF document text
  • http://ccsctda.com/ckfinder/userfiles/files/20210801_045149.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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