Malicious PDF — malware analysis report

Heuristics 8

• 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.
• QR-code redirect lure medium SE_QR_LURE
  Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
• 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://pistant.ru/uplcv?utm_term=flash+transfer+apk PDF link annotation

  • http://compufoxmail.com/FCKeditor/editor/filemanager/connectors/userfiles/file/xexifizotigogozuzojamorog.pdfIn PDF document text
  • https://spcinternational.in/ckfinder/userfiles/files/14221377246.pdfIn PDF document text
  • http://studioassociatoemc.com/userfiles/files/73178092879.pdfIn PDF document text
  • http://www.advancedevents.ro/wp-content/plugins/formcraft/file-upload/server/content/files/161305b29aecc1---98306750984.pdfIn PDF document text
  • http://www.marsagri.com/wp-content/plugins/formcraft/file-upload/server/content/files/16135ceb24dbcc---zapisedufetidopagedezofo.pdfIn PDF document text
  • https://www.ideakliniksisli.com/wp-content/plugins/formcraft/file-upload/server/content/files/16135f5b285b1a---zoduvajokebuxozujupofat.pdfIn PDF document text
  • https://editora-arara-azul.com.br/site/admin/ckfinder/userfiles/files/mafaninovamelap.pdfIn PDF document text
  • http://www.nanodrywash.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612fdd544194e---38833730851.pdfIn PDF document text
  • http://clainvest.pl/userfiles/file/tadeludanomedojotixixuk.pdfIn PDF document text
  • https://miguktour.com/FileData/ckfinder/files/20210906_67940212F3A7378D.pdfIn PDF document text
  • http://plan.msu.ac.th/ckfinder/userfiles/files/77851669087.pdfIn PDF document text
  • http://rhondachem.com/d/files/89702841657.pdfIn PDF document text
  • https://pchome.uzai.ca/upload/files/gikolelazanizodo.pdfIn PDF document text
  • http://fuyu.010bi.com/ckfinder/userfiles/files/68987491977.pdfIn PDF document text
  • http://triumphtoday.org/wp-content/plugins/formcraft/file-upload/server/content/files/16132a6a6e0b40---tipekabakejonowupog.pdfIn PDF document text
  • https://escaletravel.com/userfiles/files/larav.pdfIn PDF document text
  • http://www.iuoelocal870.com/kaizen/ckfinder/userfiles/files/95105498694.pdfIn PDF document text
  • http://hamlineparkplaza.com/assets/amund/ckfinder/userfiles/files/rilasemowedowigo.pdfIn PDF document text
  • https://shrmivirtual.org/wp-content/plugins/super-forms/uploads/php/files/3d8708e1c4448d0e25823daf69bf78fa/4709171046.pdfIn PDF document text
  • http://pferdefreunde-brueckenhof.de/sites/default/files/userfiles/file/56744033497.pdfIn PDF document text
  • http://dorapeyzaj.com/userfiles/file/wepepipakixisa.pdfIn PDF document text
  • https://needlugs.com/userfiles/files/1071543024.pdfIn PDF document text
  • http://ambulatorioveterinariovianello.eu/userfiles/files/19545650614.pdfIn PDF document text
  • http://kaizenlife.com/ckfinder/userfiles/files/rudazofiwa.pdfIn PDF document text
  • http://turningpointdigital.com/cote_dor_import/admin/ckfinder/userfiles/files/fawigudafidavojuvufine.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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