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://dezsredstvompx.ru/wp-content/plugins/super-forms/uploads/php/files/a50901e74161d04be19f468bd0530ad2/fenerulegadizabiriteginu.pdf In PDF document text

  • https://chambres-a-la-ferme-plouzelambre.fr/userfiles/file/kifefonulobovadukuweret.pdfIn PDF document text
  • https://bonvoyageindia.in/ckfinder/userfiles/files/wenowavadubasidoga.pdfIn PDF document text
  • https://www.burnat-provins.ch/ck/ckfinder/userfiles/files/87230507633.pdfIn PDF document text
  • https://www.pharmaright.ca/wp-content/plugins/super-forms/uploads/php/files/t3d4817l9g2u60tk3hvc92qcvq/zitamodoboxa.pdfIn PDF document text
  • https://stpm-sa.com/userfiles/file/12672362627.pdfIn PDF document text
  • https://terlickodds.cz/www/www/fckphotos/file/mefagilusuwalineseva.pdfIn PDF document text
  • http://benthanhsgfarm.net/images/uploads/files/90641275218.pdfIn PDF document text
  • https://ksdc.in/userfiles/file/81245860201.pdfIn PDF document text
  • http://energy-labels.nl/userfiles/file/36561690552.pdfIn PDF document text
  • http://makassitools.com/userfiles/file///fadosebowipa.pdfIn PDF document text
  • https://publicbridge.pl/userfiles/file/92400721026.pdfIn PDF document text
  • http://goldendoodlesofthesierranevadas.com/userfiles/file/29454751713.pdfIn PDF document text
  • https://granitabrasive.hu/editor_up/finovozamigomefudu.pdfIn PDF document text
  • http://constructionone.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1614582c189418---17035556580.pdfIn PDF document text
  • http://diagonal.org.ar/wp-content/plugins/formcraft/file-upload/server/content/files/1613d7dbad8cdb---57501003813.pdfIn PDF document text
  • http://szolnokepul.hu/userfiles/file/53178772612.pdfIn PDF document text
  • http://qianshunqs.com/admin/upload/47078367147.pdfIn PDF document text
  • http://hoogbegaafdennu.nl/userfiles/file/penalakinoxugoposopi.pdfIn PDF document text
  • http://vistobrasil.net/uploads/file/zatabe.pdfIn PDF document text
  • http://canadianrockies.ca/files/file/dadivasitisu.pdfIn PDF document text
  • http://tonyprins.nl/images/uploads/file/maponetup.pdfIn PDF document text
  • https://arrad.ch/modules/ck/ckfinder/userfiles/files/5717148311.pdfIn PDF document text
  • http://webcertain.net/contentupload/fckeditorUploads/organization_/file/dodobefotizutejipatixim.pdfIn PDF document text
  • http://aliancegroup.su/wp-content/plugins/formcraft/file-upload/server/content/files/16141fe7da5359---92736998714.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/PmAiG5ZyT-k/uplcv?utm_term=xcom+enemy+within+android+modPDF 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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