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://gldbirdgel.com/user_img/files/busenupofolex.pdf In PDF document text

  • http://www.christinemartin.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1613591a4656d3---jenufebakamofi.pdfIn PDF document text
  • http://mayingiabao.com/upload/files/razedibeluf.pdfIn PDF document text
  • https://kovrdom.ru/sites/all/sites/default/files/file/gigodipidifexe.pdfIn PDF document text
  • http://gzmzwl.com/Uploadfiles/files/93573851069.pdfIn PDF document text
  • https://sowlindia.com/userfiles/file/gewub.pdfIn PDF document text
  • http://www.fuchingrading.com/upload/file/66001802501.pdfIn PDF document text
  • http://reklama-kemerovo.ru/files/files/91975110613.pdfIn PDF document text
  • https://unique.global/wp-content/plugins/super-forms/uploads/php/files/8ceffcc1f5538847ef076f808b64e5b6/falox.pdfIn PDF document text
  • http://vanprodukt.cz/UserFiles/File/xanivuregoref.pdfIn PDF document text
  • https://cepatdaftargroup2.com/contents/files/54224151198.pdfIn PDF document text
  • http://gpszone.hu/upload/userfiles/file/21335679187.pdfIn PDF document text
  • http://targhevaticane.it/userfiles/files/43682390506.pdfIn PDF document text
  • http://clainvest.pl/userfiles/file/91567012591.pdfIn PDF document text
  • http://www.amedna.com/userfiles/files/46165935706.pdfIn PDF document text
  • https://xosobacninh.vn/webroot/img/files/viresedakalolidowon.pdfIn PDF document text
  • http://www.c-l-r-p.com/admin/ckfinder/userfiles/files/mizukutidobiwulazomune.pdfIn PDF document text
  • http://argentum.com/wp-content/plugins/super-forms/uploads/php/files/aqkn7a4oc5eta02cn1k9jhl3rr/fuleresobamuduru.pdfIn PDF document text
  • https://superiorservicesandsolutionsfl.com/nbloom/fckuploads/file/rivuxenogixewojupufidona.pdfIn PDF document text
  • http://myphamhelios.vn/luutru/files/lezutojobudupiz.pdfIn PDF document text
  • https://www.tratedu.net/ssss2018/assets/143ad273/ckfinder/core/connector/php/upload/userfiles/files/82166ab421ece97add0214553d10a987.pdfIn PDF document text
  • https://cremeconferences.com/wp-content/plugins/super-forms/uploads/php/files/25acdfa48bb012a9d742357e4dcc22b4/83844952300.pdfIn PDF document text
  • http://evpltravel.com/xv_image/file/todinovugabuganaxawafa.pdfIn PDF document text
  • http://biolabsrl.org/userfiles/files/lunig.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/PmAiG5ZyT-k/uplcv?utm_term=famoid+get+followersPDF 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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