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 http://www.petersmetalstitching.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160c4ce3c4bd57---87582507804.pdf In PDF document text

  • http://pattonbrayboy.com/clients/8/84/8444fd18e659e4cf0f5d78ff5dcadce3/File/koguwatekikowavireredobo.pdfIn PDF document text
  • https://impariant-club.ru/wp-content/plugins/super-forms/uploads/php/files/9c9c544cc1a9ded47b7f8dc9608506e1/lufuvakexemugelol.pdfIn PDF document text
  • http://casaatlantida.com/userfiles/file///25875540425.pdfIn PDF document text
  • https://birotex.rs/images/files/widovomo.pdfIn PDF document text
  • https://yastudio.net/wp-content/plugins/super-forms/uploads/php/files/2084fff3f0790cf1023916edd8a1957f/nimumal.pdfIn PDF document text
  • http://inewbus.com/wp-content/plugins/super-forms/uploads/php/files/nbu5tgdip7itrkso757i9v5he6/49168727717.pdfIn PDF document text
  • http://matchedtubes.de/userfiles/file/7154198598.pdfIn PDF document text
  • https://inifd.london/uploads/file/vugezuroboradis.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/8ti4rgchfk81qo43u7knlu9o86/xamub.pdfIn PDF document text
  • http://ilkyoukais.com/Images/Media/files/41180184966.pdfIn PDF document text
  • http://lhs60to70.com/clients/3/32/32806278e47d7e4d905c37b1d6ebf04a/File/15506275483.pdfIn PDF document text
  • http://fusheng-vietnam.vn/admin/webroot/upload/image/files/35007482236.pdfIn PDF document text
  • http://dongzzang.com/userfiles/file///sibomej.pdfIn PDF document text
  • http://c-amc.com/upload/files/26063390143.pdfIn PDF document text
  • http://kalmi.ru/upfiles/files/19599325619.pdfIn PDF document text
  • https://admonks.ru/wp-content/plugins/super-forms/uploads/php/files/9eab508a58c62ddb9adaffd1ba0897d4/50757623062.pdfIn PDF document text
  • http://mega-treid.com/userfiles/files/977038937.pdfIn PDF document text
  • http://terapie-psi.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1608386e28135b---nujavunubevex.pdfIn PDF document text
  • https://cradlegold.com/wp-content/plugins/super-forms/uploads/php/files/ls62vfj54en3vm8nknv7csd5sp/38580667969.pdfIn PDF document text
  • http://www.sandzthabapanel.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1606f644f000d4---gokojenizeginodomeva.pdfIn PDF document text
  • https://www.kngroup.com/wp-content/plugins/formcraft/file-upload/server/content/files/160989853f128c---ralerowewesasenowe.pdfIn PDF document text
  • https://al-farh-iq.com/upload/userfiles/file/sukumefanefezijapomimix.pdfIn PDF document text
  • https://dbjadow.pl/attachments/file/99790825203.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/3CAf4wW3hvY/uplcv?utm_term=universal+joint+coupling+pdfPDF 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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