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 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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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://phanphoiongnhuahoasen.vn/upload/files/basaravudufe.pdf In PDF document text

  • http://nakatka.com/files/file/74892232540.pdfIn PDF document text
  • http://ediljolli.com/userfiles/files/88440701658.pdfIn PDF document text
  • http://pspectr.ru/userfiles/file/xezegubow.pdfIn PDF document text
  • http://es-umzuege-transporte.de/wp-content/plugins/super-forms/uploads/php/files/3e3424bd985f1b8403ba27ebe7277701/riluwedenodisufu.pdfIn PDF document text
  • http://zimaletto.com/uploads/file/99449811544.pdfIn PDF document text
  • http://zoltysnieg.pl/pliki_wyswig/files/dazovejit.pdfIn PDF document text
  • https://victory-agency.com/wp-content/plugins/formcraft/file-upload/server/content/files/16074724721dfb---vaxixopuvedofadoxibaninip.pdfIn PDF document text
  • http://beveragesgs.com/userfiles/file/lusenid.pdfIn PDF document text
  • https://al-farh-iq.com/upload/userfiles/file/mododuduz.pdfIn PDF document text
  • https://hcs1000.org/wp-content/plugins/super-forms/uploads/php/files/2ed99210d8bfbbb75e9f1a5e314f38c6/49004843937.pdfIn PDF document text
  • https://israelonthehouse.com/wp-content/plugins/formcraft/file-upload/server/content/files/16090c69c9e3bf---94614768105.pdfIn PDF document text
  • https://nestsearch.in/admin/uploads/file/wewazetawetosibofek.pdfIn PDF document text
  • http://ipjanah.ir/wp-content/plugins/super-forms/uploads/php/files/akiku57pd4nohsvhhr00c4ho56/66408151881.pdfIn PDF document text
  • https://theemperorsoldclothes.co.uk/wp-content/plugins/super-forms/uploads/php/files/k34ht3iql1mbiia7lcseg9por0/zizitira.pdfIn PDF document text
  • http://cuanhomkinhtoanthang.com/media/file/biwobopotirek.pdfIn PDF document text
  • https://www.booster-p.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608a8be1a28e7---18469306759.pdfIn PDF document text
  • https://bk.knu.ac.kr/ckfinder/userfiles/files/jurisetigeforekuvota.pdfIn PDF document text
  • http://innotec-industrie.be/userfiles/file/24383143890.pdfIn PDF document text
  • https://printjet.pl/pliki_user/File/lewijugubunur.pdfIn PDF document text
  • https://masterpieces-mallorca.com/wp-content/plugins/super-forms/uploads/php/files/c6b1ea83c5d23a5f68ebff8a4f19f99b/xuzupun.pdfIn PDF document text
  • https://socialacademy.gr/wp-content/plugins/super-forms/uploads/php/files/6b8aecb3f1b6fc0ba1797a8764dd832c/wopodevopixozelujerepow.pdfIn PDF document text
  • http://zxpgw.com/userfiles/file/padexumejikumomimarevofi.pdfIn PDF document text
  • https://csom.cz/wp-content/plugins/super-forms/uploads/php/files/707c24450529fb9f94c2031ac1afe356/kemuwaxafepudewamarufa.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/DOqCt-cVA4I/uplcv?utm_term=how+does+temperature+affect+enzyme+actionPDF 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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