Malicious PDF — malware analysis report

Heuristics 9

• 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 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.
• Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
  PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
• 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.
• Embedded JS stream low PDF_JS
  PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
• 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://laborke.ru/uplcv?utm_term=2008+suzuki+sx4+owners+manual+pdf PDF link annotation

  • http://tinhdauvietnam.vn/upload/files/kokivevulajemexibemev.pdfIn PDF document text
  • http://pensjonatagat.pl/userfiles/file/3474231089.pdfIn PDF document text
  • https://sipsib.ru/wp-content/plugins/super-forms/uploads/php/files/2f6d6dac279deb8085ca36e8ebbcd9e6/fopikulegaki.pdfIn PDF document text
  • http://mashtalkandil.com/userfiles/file/44341167374.pdfIn PDF document text
  • http://4bx.pl/public/file/munafagawixo.pdfIn PDF document text
  • http://kaizousha.com/js/upload/files/munofulet.pdfIn PDF document text
  • https://brunoamaranti.it/wp-content/plugins/super-forms/uploads/php/files/2ug014fln6ae0b0786ru3vksg5/borawolojubaxobokowabosos.pdfIn PDF document text
  • http://developmentassociationofnagaland.org/nbloom/fckuploads/file/75397036545.pdfIn PDF document text
  • http://dungcubepgiangtrinh.com/webroot/img/files/54417241475.pdfIn PDF document text
  • http://104.156.58.56/~web2inbox/wp-content/plugins/formcraft/file-upload/server/content/files/160fcc16a63d76---zovakubobenuri.pdfPDF link annotation
  • http://dichvutheapec.com/upload/FCK/file/geremawakevipapap.pdfIn PDF document text
  • http://montaze.org/democms/userfiles/file/34155648571.pdfIn PDF document text
  • http://www.anclupnapoli.it/userfiles/file/84771406188.pdfIn PDF document text
  • https://ocvirapuato.com.mx/wp-content/plugins/super-forms/uploads/php/files/366727b9841d329098c7b4633e0650ee/bapevubelerager.pdfIn PDF document text
  • http://trickorsuite.com/clients/5/5d/5d84d12f6f4dfd10bbe5497c884a5f3e/File/sodirapanamisagilaji.pdfIn PDF document text
  • http://daieimotors.com/js/upload/files/gewuxasorog.pdfIn PDF document text
  • http://staropolski.net/Upload/file/16218757917.pdfIn PDF document text
  • http://tokstar.com/_UploadFile/Images/file/fimibasosere.pdfIn PDF document text
  • http://www.elitagida.com.tr/wp-content/plugins/super-forms/uploads/php/files/2i2jnmu6q98ecl75bp6sf9v944/30903495624.pdfIn PDF document text
  • https://www.northernillumination.com/wp-content/plugins/super-forms/uploads/php/files/af344ca45ddaeba07d122d10dfbcd7f7/61581985469.pdfIn PDF document text
  • http://www.itbaloch.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608bf16d6a612---bolorumojuva.pdfIn PDF document text
  • https://getlovebooks.com/wp-content/plugins/super-forms/uploads/php/files/2e8c6a8a563fbc1160e4707909016113/97361827968.pdfIn PDF document text
  • https://dialogueinpraxis.net/files/docs/safapolegobudivarelasixe.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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