Malicious PDF — malware analysis report

Heuristics 7

• 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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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://archism.ru/uplcv?utm_term=how+to+calculate+loan+repayment+in+excel PDF link annotation

  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f2f4155c590---mojimuxulawibonejevaruma.pdfIn PDF document text
  • https://40parables.com/wp-content/plugins/super-forms/uploads/php/files/a0ad85ca3212ebcd5b8f8ad9f1b04d88/96940922803.pdfIn PDF document text
  • http://phuongninhphat.com/uploads/userfiles/file/26247697736.pdfIn PDF document text
  • http://101-games.ru/images/uploads/files/86330373131.pdfIn PDF document text
  • http://www.peopleoftheheath.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f205068e610---kojezizorelutugowa.pdfIn PDF document text
  • https://sealordhotels.com/ckfinder/userfiles/files/bigipumefimefej.pdfIn PDF document text
  • http://universalgroupautos.com/files/others/sukux.pdfIn PDF document text
  • https://njsolarpower.com/wp-content/plugins/super-forms/uploads/php/files/922843fa0f0fb44d0683164e6534040c/guvakovaxorisiselujazule.pdfIn PDF document text
  • http://timebank.ru/sites/default/files/photos/pagefile/694231525.pdfIn PDF document text
  • http://www.ecvbrass.ch/user/web/file/2807787176.pdfIn PDF document text
  • https://outsourcedbackoffice.co.uk/wp-content/plugins/super-forms/uploads/php/files/8420613c23ac388482617891490320ca/10944027761.pdfIn PDF document text
  • http://fontanarosaserigrafia.it/userfiles/file/37901867427.pdfIn PDF document text
  • http://www.pethouse.es/ckfinder/userfiles/files/jotepeken.pdfIn PDF document text
  • http://www.birapart.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608345bc8560f---xokoz.pdfIn PDF document text
  • http://czerwoneiczarne.pl/files/file/48947948501.pdfIn PDF document text
  • https://china-glass-mosaic.com/userfiles/files/20210617_073451.pdfIn PDF document text
  • http://www.edgartownschool.org/uploads/files/fofekumunemijiwabaz.pdfIn PDF document text
  • http://devison-matras.com/upload/file/gumumu.pdfIn PDF document text
  • http://pattarasawat.com/ckfinder/userfiles/files/walojem.pdfIn PDF document text
  • http://jeugdopdewetenschapsagenda.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160e38c741291e---17527023655.pdfIn PDF document text
  • https://www.duffylighting.com/wp-content/plugins/super-forms/uploads/php/files/4acb5690de0ff2ecb670d9f328d5860d/fefokotaboguvelule.pdfIn PDF document text
  • https://alphacleanwashing.com/wp-content/plugins/super-forms/uploads/php/files/5d81b3e0153e7d1530ac9635cffabe72/16245614593.pdfIn PDF document text
  • http://anhuicrew.com/upload_fck/file/2021-6-30/20210630000607820574.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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