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 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.
• Urgency / deadline lure low SE_URGENCY_LURE
  Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
• 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://krisoc.ru/uplcv?utm_term=remainder+theorem+questions+and+answers+pdf PDF link annotation

  • http://wabasnb.com/files/fckeditor/file/41892113061315d832c9ab.pdfIn PDF document text
  • http://fixmyhelicopter.com/project-new/christianbook/upload_images/file/34562657511.pdfIn PDF document text
  • http://pcserviszlin.cz/ckfinder/userfiles/files/givutitetivegemoxewe.pdfIn PDF document text
  • http://clinivetmadonnadirosa.eu/userfiles/files/vemax.pdfIn PDF document text
  • http://munnarinfo.in/userfiles/file/84039842665.pdfIn PDF document text
  • https://berbagiangka.com/contents/files/79637599485.pdfIn PDF document text
  • https://www.crossfitparamaribo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160fb3a38b65c3---kepokaxavixivuxawabepuj.pdfIn PDF document text
  • http://optimumnieruchomosci.pl/uploads/userfiles/files/nadusinegexugi.pdfIn PDF document text
  • https://www.popcaffe.it/wp-content/plugins/super-forms/uploads/php/files/3e208264639ce8d1007110a709c9e132/ravadifif.pdfIn PDF document text
  • http://dossalas.com/wp-content/plugins/super-forms/uploads/php/files/deb8b7332e581b1dd0eb87df5ace2d26/95636989293.pdfIn PDF document text
  • https://dcimx.com/files/wozeloralowozarapofes.pdfIn PDF document text
  • http://www.cascinasorigherio.it/wp-content/plugins/formcraft/file-upload/server/content/files/160adc8cfb4c3f---lavururobovugilop.pdfIn PDF document text
  • https://sandalyecenneti.com/wp-content/plugins/super-forms/uploads/php/files/5h556jhtbp2433o40d4papdla4/goxopotubadomuk.pdfIn PDF document text
  • https://durgabas.coop.np/ckfinder/userfiles/files/74834828426.pdfIn PDF document text
  • https://senzedigicraft.com/wp-content/plugins/super-forms/uploads/php/files/dcdb2a4afaaff455cf4f4334fee840b4/pevopiretasufudoxizu.pdfIn PDF document text
  • https://wamsconference.com/wp-content/plugins/super-forms/uploads/php/files/2747d44540d1639b9e4a4bf371618c5c/nozabifozonedupeda.pdfIn PDF document text
  • http://4bx.pl/public/file/tageneju.pdfIn PDF document text
  • https://zlataraburmevuckovic.com/files/99383793635.pdfIn PDF document text
  • http://gyobel.itpublic/file/pibazugibutupudiju.pdfIn PDF document text
  • https://viajespereira.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075442118622---98230929301.pdfIn PDF document text
  • https://bonafideonline.com.ar/wp-content/plugins/super-forms/uploads/php/files/66fc2f23e11bf35e41be1d0959cdd552/34547632939.pdfIn PDF document text
  • http://gekon.net/userfiles/file/33329307576.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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