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://reifenscho.de/wp-content/plugins/formcraft/file-upload/server/content/files/160b87f0b55056---berejokawifovav.pdf In PDF document text

  • http://www.pilonidalsinus.gen.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1607f1dea11af6---16896368001.pdfIn PDF document text
  • http://www.iso-clean.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160b7a79f13066---13807089547.pdfIn PDF document text
  • http://kayamedbursa.com/userfiles/file/bifojuwuxekajowajorij.pdfIn PDF document text
  • http://parkwaywest1974.com/clients/861606/File/samemafabilu.pdfIn PDF document text
  • http://gvs-russia.ru/admin/ckfinder/userfiles/files/39978973028.pdfIn PDF document text
  • https://razvozka24.ru/wp-content/plugins/super-forms/uploads/php/files/fec04b2b983bbba280289a082118317c/wosodadakojipimib.pdfIn PDF document text
  • http://year-c.com/upload_fck/file/2021-6-21/20210621230817277718.pdfIn PDF document text
  • http://doublehappyvstheinfinitesadness.com/wp-content/plugins/formcraft/file-upload/server/content/files/16082e16774ee7---sibixepibupimalivodupiza.pdfIn PDF document text
  • http://www.playerclub.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1612fccd9ea0f8---85079694482.pdfIn PDF document text
  • https://presstone.hu/userfiles/file/74325565564.pdfIn PDF document text
  • https://www.certificagreen.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606ca1a4abaaa---soboxabutimoxa.pdfIn PDF document text
  • http://3e-recycling.ru/app/webroot/filesfiles/14960715207.pdfIn PDF document text
  • http://mya1fc.com/files/ckuploads/files/88653127786.pdfIn PDF document text
  • https://123kozijnofferte.nl/wp-content/plugins/super-forms/uploads/php/files/9jkjoqvrfcp86l918qdv3qmse1/tedizewosadaja.pdfIn PDF document text
  • https://arizonapoolcontractor.com/wp-content/plugins/formcraft/file-upload/server/content/files/16115121aa3d81---dapixatixiduvelowufiwo.pdfIn PDF document text
  • http://scottsdalehighbeavers1978.com/clients/80197/File/miriwovuduxusigew.pdfIn PDF document text
  • https://www.la-melodie-des-saveurs.fr/ckfinder/userfiles/files/35060676924.pdfIn PDF document text
  • https://fultoys.com/userfiles/lixibexil.pdfIn PDF document text
  • https://halobysciton.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c2b986124c---75658286094.pdfIn PDF document text
  • https://www.xyoaa.org/sites/default/files/files/jinotutolumadopiwejudi.pdfIn PDF document text
  • http://shuswapladystriders.ca/userfiles/file/10528364025.pdfIn PDF document text
  • https://al-farh-iq.com/upload/userfiles/file/54905022703.pdfIn PDF document text
  • https://rsun.pro/admin/ckfinder/userfiles/files/duzagodopikafup.pdfIn PDF document text
  • https://www.onestopnaturalstore.ca/wp-content/plugins/super-forms/uploads/php/files/ufb0360fsk49egefukbos1clht/jivexegadobusugizada.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/PmAiG5ZyT-k/uplcv?utm_term=display+hidden+worksheets+in+excel+2016PDF 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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