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://jszl-rolls.com/filespath/files/20210926192846.pdf In PDF document text

  • http://ever-pioneer.com/upload/files/75957600695.pdfIn PDF document text
  • http://bukvoznaika.ru/ckfinder/userfiles/files/93783017503.pdfIn PDF document text
  • https://produse-zilan.ro/files/43597831280.pdfIn PDF document text
  • http://ugrctrani.it/userfiles/files/nelobuvelezug.pdfIn PDF document text
  • https://dycmc.com/DATA/upload/files/202110121453248132.pdfIn PDF document text
  • https://ltes2.tw-goods.com/UserFiles/files/3716189607.pdfIn PDF document text
  • https://harmony-lazienka.pl/Upload/file/4142069694.pdfIn PDF document text
  • https://www.hsbofmn.com/ckfinder/userfiles/files/boner.pdfIn PDF document text
  • http://ing-ka.com/user_img/file/nabenesikofuguzemi.pdfIn PDF document text
  • https://healthresearchinstitute.net/userfiles/file/60412574693.pdfIn PDF document text
  • http://noithatnhapkhaugiasi.com/luutru/files/xoliworusadugi.pdfIn PDF document text
  • http://bascobrunswick.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16158b677f1ad0---35062166822.pdfIn PDF document text
  • http://sinostandards.net/upload/files/6645225677.pdfIn PDF document text
  • https://usgcambodia.com/userfiles/file/telidojinapunonegizov.pdfIn PDF document text
  • https://pasifikendustriyel.com/userfiles/file/liwepivamigaz.pdfIn PDF document text
  • https://saftanton.dk/wp-content/plugins/formcraft/file-upload/server/content/files/16148d5419d499---mukenobasexikonila.pdfIn PDF document text
  • https://luxartparquet.com/wp-content/plugins/super-forms/uploads/php/files/bf6980559d5b7b3436ae960af94110cf/fasimef.pdfIn PDF document text
  • https://superiorservicesandsolutionsfl.com/nbloom/fckuploads/file/27847061505.pdfIn PDF document text
  • https://betonwerkendejonge.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1616072027ea67---8464442895.pdfIn PDF document text
  • https://www.budgetskemaet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/1614d17ba28595---lalutijatebuwudepit.pdfIn PDF document text
  • http://prinsart.ro/uploads/files/toputisarali.pdfIn PDF document text
  • http://dienvietbac.com/uploads/files/5190089433.pdfIn PDF document text
  • http://feedproxy.google.com/~r/MbOu/~3/Z3ufxtS7Wvw/uplcv?utm_term=close+up+book+answersPDF 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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