Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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://inwebjor.ru/uplcv?utm_term=atividades+para+fazer+com+bebe+de+1+ano+e+meio PDF link annotation

  • https://perfecthospitals.org/FCKeditor/file/xowuguxodalelofum.pdfIn PDF document text
  • http://indiebookoftheday.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c9f489d9ec3---xoworavikepokilol.pdfIn PDF document text
  • https://ibextrail.com/editor-images/4782088845.pdfIn PDF document text
  • http://ambulatorioveterinariosantanna.eu/userfiles/files/getepabilikawaz.pdfIn PDF document text
  • http://manpukuorder.com/uploads/files/jerazepupomilimiduwomef.pdfIn PDF document text
  • https://imapcb.org/wp-content/plugins/super-forms/uploads/php/files/rfjec0gpaa3pg28qo72qti9ck5/63408776622.pdfIn PDF document text
  • https://www.m2asolutions.com/wp-content/plugins/super-forms/uploads/php/files/b09f5e8a6a990dee4cc62703ad8d0427/zepatanubidofikosobetinaf.pdfIn PDF document text
  • http://aimic.com/userfiles/file/23921101229.pdfIn PDF document text
  • http://palletgoanloi.com/img-dn/files/2603618835.pdfIn PDF document text
  • http://chataphan.com/file_media/file_image/file/lemibodigu.pdfIn PDF document text
  • https://metricgroup.it/uploads/file/xazudiluf.pdfIn PDF document text
  • http://lamachine.nl/userfiles/file/26972539505.pdfIn PDF document text
  • http://skup-laptopow.com/wp-content/plugins/formcraft/file-upload/server/content/files/16087d3a40b50a---kesodig.pdfIn PDF document text
  • http://ozkayalartrans.com/userfiles/file/32039422805.pdfIn PDF document text
  • http://www.inhd.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16090292513c42---31740126606.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/sjank08o2g5h80rulojdhdqe20/44013421099.pdfIn PDF document text
  • http://szpk.hu/_user/file/42779488473.pdfIn PDF document text
  • http://samnakthodrahassob.com/userfiles/file/rakar.pdfIn PDF document text
  • http://aweibel.com/Photo/file/pinofoxipefonudadoba.pdfIn PDF document text
  • http://highendschmiede.de/highendfiles/file/fimig.pdfIn PDF document text
  • https://studio-september.com/wp-content/plugins/super-forms/uploads/php/files/9276b7c8d742177bab25be1e2796420c/78219316911.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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