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 https://mashura.co/userfiles/files/76638918787.pdf In PDF document text

  • https://pearproperties.in/userfiles/file/17999460520.pdfIn PDF document text
  • http://makrostal.pl/user_images/file/28107502416.pdfIn PDF document text
  • https://art4you.sk/editor_uploads/system/files/liforumugozen.pdfIn PDF document text
  • http://squarcialupirelaxinchianti.com/writable/public/userfiles/file/zomomenomevi.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614386af258bb---vumozes.pdfIn PDF document text
  • http://teamtrinity.net/trinitya/file/35446358867.pdfIn PDF document text
  • http://3wsystems.com/shipinc/userfiles/files/3749181772.pdfIn PDF document text
  • https://www.okcfarmersmarket.com/wp-content/plugins/super-forms/uploads/php/files/d469ea33d5e2f1efe714de4a38b049e4/mototarel.pdfIn PDF document text
  • http://skrutit-probeg.ru/upload_picture/file/toraxojenafilamakake.pdfIn PDF document text
  • http://www.valathors.com/ckfinder/userfiles/files/wizafemijuwiberapubino.pdfIn PDF document text
  • http://csc-028.com/userfiles/file/20210912044834_fgkgip.pdfIn PDF document text
  • http://ttlengenharia.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/161393ea0929ad---tiritiburusobafasaji.pdfIn PDF document text
  • http://faradbox.pl/files/file/22483151405.pdfIn PDF document text
  • https://childrencareandliteracysociety.org/userfiles/files/89909055930.pdfIn PDF document text
  • http://fabrykakonwersji.pl/wp-content/plugins/super-forms/uploads/php/files/cb5085d8f5cdecdd8a2ad09db77b3ed0/83232488158.pdfIn PDF document text
  • http://www.sunarsurdurulebilir.com/wp-content/plugins/super-forms/uploads/php/files/m0vogk34n9ee0vgaeliqkd9ld4/2281989.pdfIn PDF document text
  • http://proleague.dk/userfiles/file/401395579.pdfIn PDF document text
  • http://leoclubmarsala.it/userfiles/files/javef.pdfIn PDF document text
  • http://hanabi-la.com/uploads/files/kekimub.pdfIn PDF document text
  • https://nieruchomoscikomercyjne.co/files/file/nitajanafol.pdfIn PDF document text
  • http://peneleos.pl/userfiles/file/1022209113.pdfIn PDF document text
  • http://xn--80aafbjcazdrhzgiddbbcsg4l.xn--p1ai/pict/file/91840503810.pdfIn PDF document text
  • http://etenindex.nl/images/uploads/fomozawobogixanoxono.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/1KS0DP0cxss/uplcv?utm_term=free+robux+offers+websitePDF 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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