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://drahmetbostanci.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606ce27175039---nukufetesafof.pdf In PDF document text

  • https://hightechrustremovers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160d4fcfc232cd---80912208865.pdfIn PDF document text
  • https://thesmithgrouphouston.com/wp-content/plugins/super-forms/uploads/php/files/22259b3be0a4ff2bdf0750bde82e8453/24059178256.pdfIn PDF document text
  • https://invest.pl/userfiles/file/mawubalinurejozigibukeso.pdfIn PDF document text
  • https://israelonthehouse.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609b58fcaf222---38804973144.pdfIn PDF document text
  • http://anhuifan.com/upload_fck/file/2021-5-7/20210507094115669753.pdfIn PDF document text
  • https://www.inkfactory.pk/wp-content/plugins/formcraft/file-upload/server/content/files/1607f72cbc2216---82274037811.pdfIn PDF document text
  • http://www.davidwoodpersonnel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607061a6493c2---98605491212.pdfIn PDF document text
  • http://drukarnia-warszawa.pl/pliki/file/92005604369.pdfIn PDF document text
  • http://bradhelferlaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/gexujonumibezesadu.pdfIn PDF document text
  • http://ivepe-elearning.gr/assets/UserFiles/mainHome/file/76133166602.pdfIn PDF document text
  • http://candientushinko.com/images/file/81109460138.pdfIn PDF document text
  • http://naturallabs.de/userfiles/file/jokovawe.pdfIn PDF document text
  • https://broadstripe.com/wp-content/plugins/super-forms/uploads/php/files/ad412c99044b2101c069917ad6236597/61507483946.pdfIn PDF document text
  • http://globalcenterhotels.com/bot/ckfinder/uf/files/49624599270.pdfIn PDF document text
  • https://callhfelectric.com/wp-content/plugins/formcraft/file-upload/server/content/files/160851fdc637fd---74285753626.pdfIn PDF document text
  • https://gsacademy.ge/uploads/files/44471421166.pdfIn PDF document text
  • http://mediaworld.pro/ckfinder/userfiles/files/xebofofawivu.pdfIn PDF document text
  • https://apoiotelecom.com/imagens/img_fckeditor/file/4515049035.pdfIn PDF document text
  • http://developmentassociationofnagaland.org/nbloom/fckuploads/file/75397036545.pdfIn PDF document text
  • http://thefutureofgolf.eu/wp-content/plugins/formcraft/file-upload/server/content/files/160ac861ebab84---figudosolowid.pdfIn PDF document text
  • http://czdashan.cn/uploadfile/file/2021050318565973499.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/Om9ozkHLxGw/uplcv?utm_term=hora+de+comer+e+teatime+resultados+2021PDF 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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