Malicious PDF — malware analysis report

Heuristics 6

• 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 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://pistant.ru/uplcv?utm_term=aia+a310+bid+bond+form+1970 PDF link annotation

  • http://alvasari.com/wp-content/plugins/formcraft/file-upload/server/content/files/16097d29cf1db3---89340394444.pdfIn PDF document text
  • http://www.kidnuri.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d371130e57---bodaxumefobenazufatulesa.pdfIn PDF document text
  • https://unibel.pl/pliki/upload/file/48508983298.pdfIn PDF document text
  • http://novussiteyonetimi.com/uploads/file/41554421831.pdfIn PDF document text
  • https://webtraffic.ch/wp-content/plugins/super-forms/uploads/php/files/8n6q9ec5n9gc63ekc4e7r0uu2i/nosidenokowokoji.pdfIn PDF document text
  • http://schouteninterieurwerk.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1607aead3da7bb---27719714229.pdfIn PDF document text
  • https://area34.info/wp-content/plugins/super-forms/uploads/php/files/i1if179b3b40v2vf94qmhk8s62/jevolatasobegumiwawob.pdfIn PDF document text
  • http://discoveryenglish.org/wp-content/plugins/formcraft/file-upload/server/content/files/1609ba9743f297---kagagobobowomofawuboloxuf.pdfIn PDF document text
  • https://eduinfinite.com/wp-content/plugins/super-forms/uploads/php/files/32c537775a7dda18225e55740fb30405/xigugedufaxidoxexugumat.pdfIn PDF document text
  • http://lightningriskassessment.com/ci/userfiles/files/78888204020.pdfIn PDF document text
  • http://sjar-tech.com/uploadfile/file///2021070511542939.pdfIn PDF document text
  • http://jamessham.com/admin/usercontent/file/30326633349.pdfIn PDF document text
  • http://betaempire.com/uploads/userfiles/file/file/94992673486.pdfIn PDF document text
  • https://mission4recruitment.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b5c4db5275b---63669553687.pdfIn PDF document text
  • https://www.lokalesichtbarkeit.de/wp-content/plugins/super-forms/uploads/php/files/720go6137h8rd8k7pd7u5fi8cl/jasawobijubu.pdfIn PDF document text
  • http://conservationenergy.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c577580bfc9---31012387973.pdfIn PDF document text
  • http://lirealestatelitigator.com/wp-content/plugins/super-forms/uploads/php/files/9fbfd1cbf23cdec50168296f5dc6ae7b/64011385437.pdfIn PDF document text
  • https://samarpanbharat.org/trila/userfiles/file/wadumutebim.pdfIn PDF document text
  • https://bilalyapidekorasyon.com/userfiles/file/32142114910.pdfIn PDF document text
  • http://bachova-terapia.sk/images/file/67011796222.pdfIn PDF document text
  • https://www.dynasil.com/wp-content/plugins/super-forms/uploads/php/files/c1c1da5714aa15dd0eb58ba73adabf78/xipipalowesowuta.pdfIn PDF document text
  • https://incense888.com/uploads//files/202108051135552125.pdfIn PDF document text
  • http://pobierzplik.pl/uploads/files/xuteloxafusarotaw.pdfIn PDF document text
  • http://richardarnoldalumni.com/clients/a/ad/ad1dcfa6f69ac51e3fe6bec18f6cf6d6/File/kataj.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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