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
• Malformed active-content stream length medium PDF_MALFORMED_EXPLOIT_STREAM_LENGTH
  A PDF stream that carries active/exploit-looking content has a declared /Length that does not match the recovered stream body. Malformed stream boundaries and length mismatches are common parser-evasion/supporting evidence around Reader exploit streams.
• 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://infrive.ru/uplcv?utm_term=recent+advances+in+biotechnology+2018+pdf PDF link annotation

  • http://phyllisrubensteinlaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/forig.pdfIn PDF document text
  • https://www.beewellrx.com/wp-content/plugins/super-forms/uploads/php/files/tmp/fanaremozakases.pdfIn PDF document text
  • https://www.numberoneporthill.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160dae2b2d70f6---7145296593.pdfIn PDF document text
  • http://woykoff.hu/upload/file/1150336580.pdfIn PDF document text
  • http://arcdesantmarti.com/biocop/Images/images-editor/file/bixubeteboxano.pdfIn PDF document text
  • http://bizwd.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f10e70e658---94816062907.pdfIn PDF document text
  • http://orourkelawoffice.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/nijemirobon.pdfIn PDF document text
  • http://bogieclassof67.com/clients/71235/File/bisomapejasemopofakamosif.pdfIn PDF document text
  • http://www.kinoimaging.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160811643338fe---lesekelum.pdfIn PDF document text
  • https://dondepodemosir.com/userfiles/file/29303543887.pdfIn PDF document text
  • http://benardoutlite.com/admin/fckeditor/fckdata/file/31076142245.pdfIn PDF document text
  • https://performanceltg.com/wp-content/plugins/super-forms/uploads/php/files/9b547cf32bcadd9a3ec4d7119dc14804/85509801892.pdfIn PDF document text
  • http://www.grundys.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160b59f2e65ee8---7466176741.pdfIn PDF document text
  • https://www.3dreamchurch.com/wp-content/plugins/super-forms/uploads/php/files/65d82190b21d7ae17500f26a1de6e1ab/29662465759.pdfIn PDF document text
  • http://xn----8sbnbd9chja.xn--p1ai/userfiles/file/16405637488.pdfIn PDF document text
  • https://edarky.net/data/file/ganimixumugusakoxetus.pdfIn PDF document text
  • https://tecnibat.net/uploads/archivos/50896446878.pdfIn PDF document text
  • http://ahkjt.com/upfile/file/8950203444.pdfIn PDF document text
  • https://www.audifonosdoshoydos.com/wp-content/plugins/formcraft/file-upload/server/content/files/16127804b22a89---pivogobopawirelasuw.pdfIn PDF document text
  • https://festivaldelmaridaje.com/sgi_userfiles/userfiles/files/zogixubinodifajobuxij.pdfIn PDF document text
  • http://www.kevinbrooks.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160c4e5c5824f9---33549125406.pdfIn PDF document text
  • 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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