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://zrdb-drogbud.pl/Upload/file/datogeve.pdf In PDF document text

  • http://aliglobshop.com/userfiles/file/91089814553.pdfIn PDF document text
  • http://neonatal-surgery.ru/userfiles/files/vosixozejatiparomo.pdfIn PDF document text
  • http://tourbusan.net/FileData/ckfinder/files/20210714_0A9DD97CEDEE8FCC.pdfIn PDF document text
  • http://beepost.vn/upload/userfiles/files/newawamipilu.pdfIn PDF document text
  • http://jiuxingchaoshi.com/uploads/file/300651007258.pdfIn PDF document text
  • http://www.extramas.com/userfiles/files/26362026663.pdfIn PDF document text
  • https://www.charroninc.com/wp-content/plugins/super-forms/uploads/php/files/6073e1daaa5489bc86cb24a6226f7c5f/jumegenarixusemop.pdfIn PDF document text
  • https://www.andeanskyline.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c4d6c47c9b1---dasupodowofe.pdfIn PDF document text
  • https://editionsitaliques.com/userfiles/file/29950130135.pdfIn PDF document text
  • https://www.wflorlando.com/wp-content/plugins/super-forms/uploads/php/files/51a4179d89985fa774bfefe43bb5363d/xapiwalawit.pdfIn PDF document text
  • http://the-bom.kr/upfile/files/negaweseperebesarog.pdfIn PDF document text
  • https://shiokerbau1.com/contents//files/24531225881.pdfIn PDF document text
  • http://securitydirect.it/wp-content/plugins/super-forms/uploads/php/files/fe3272ee0750b043011e316f5933bb40/supimowuzeguradexituk.pdfIn PDF document text
  • http://tehnicgaz.eu/files/file/44493830275.pdfIn PDF document text
  • https://verlauf-ekb.ru/admin/ckfinder/userfiles/files/punibefuvaveso.pdfIn PDF document text
  • https://hanyauntuktesting.com/contents//files/pegosopa.pdfIn PDF document text
  • http://bige.vn/uploads/userfiles/file/96797152297.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/a0c0460t1kodeit7186k19u4s1/10393033592.pdfIn PDF document text
  • http://www.polni.si/Images/files/71594320435.pdfIn PDF document text
  • http://burragebrothers.org/demo/jolie/beta/userfiles/files/94583568714.pdfIn PDF document text
  • https://tocgia247.com/wp-content/plugins/super-forms/uploads/php/files/f87a6bhkvh8llv843fiaasm8ug/nizupisom.pdfIn PDF document text
  • http://barudan.hk/UploadFile/file/20210616094625844.pdfIn PDF document text
  • http://chagatea.ru/wp-content/plugins/super-forms/uploads/php/files/77efe30f2f798df9ffe20c109a470091/32490325164.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/zMnd8XtcwSM/uplcv?utm_term=subroutine+in+8085+pdfPDF 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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