Malicious PDF — malware analysis report

Static analysis result for SHA-256 c067720d7bac70cf…

MALICIOUS

PDF

343.6 KB Created: 2021-05-26 14:01:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-25
MD5: 5ea985cb67076c1abed8e57834af09e5 SHA-1: 02b1351d25ec865ef3c330824ae267e3674b992a SHA-256: c067720d7bac70cfa1f5a419d412f05df7c5008a9f20a39afeea6fdecfbbc02f
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to external websites, some of which are hosted on compromised WordPress sites. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or distributing further malware. The document's content, presented as a cost-benefit analysis, is a common lure to trick users into clicking malicious links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9374

Heuristics 4

  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://infrive.ru/uplcv?utm_term=what+does+cost+benefit+analysis+mean PDF link annotation
    • http://www.cuadernos.in/wp-content/plugins/formcraft/file-upload/server/content/files/16094759ddb089---mizowat.pdfIn PDF document text
    • http://www.ecvbrass.ch/user/web/file/gigotafulo.pdfIn PDF document text
    • https://harpethvalleyhealth.com/wp-content/plugins/super-forms/uploads/php/files/99294fb10c61856b10d58a1fcb951244/44754285837.pdfIn PDF document text
    • https://iominneapolis.com/wp-content/plugins/super-forms/uploads/php/files/9cf7193851a39a49e80e54d1b9a290e8/85292841110.pdfIn PDF document text
    • http://host.keraladreamhomes.com/~viswabrahmathach/admin/fckeditor/editor/filemanager/connectors/php/userfiles/file/pojewizepoxokadulaj.pdfIn PDF document text
    • https://alamansyria.com/userfiles/file/melodu.pdfIn PDF document text
    • http://reiki-roots.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160945b6d54006---naforukimekipapowef.pdfIn PDF document text
    • https://higher-reason.com/wp-content/plugins/super-forms/uploads/php/files/5jc6t86cqmd6c9k3otv42jqec0/485259700.pdfIn PDF document text
    • https://www.partyshuttlebus.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16095c59b7f763---86307378497.pdfIn PDF document text
    • https://fortlauderdale-carservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d1dd5eb135---8836171265.pdfIn PDF document text
    • http://www.investing-in-women.com/wp-content/plugins/formcraft/file-upload/server/content/files/16095cde70c9bc---fasezuvoteriso.pdfIn PDF document text
    • http://grupomarsamo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a67e8635fcd---32590624603.pdfIn PDF document text
    • https://www.heracles-hotel.eu/wp-content/plugins/super-forms/uploads/php/files/791mgucdj7rtnffsj9esjh9ju8/69463970515.pdfIn PDF document text

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