Malicious PDF — malware analysis report

Static analysis result for SHA-256 bee138cd6f5c0d5e…

MALICIOUS

PDF

48.0 KB Created: 2021-09-03 04:57:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-07
MD5: 69de51b73841cf9f2ce46a3d3309d27a SHA-1: a92fe8a9f6555ee8bb0b4a086f49a35021f7bfbe SHA-256: bee138cd6f5c0d5ea25ba80b6bf3efaaf90bf7478c96b250685c248021676e1d
94 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is identified as malicious by ClamAV with a 'Pdf.Phishing.Trojan' signature. It contains multiple embedded URLs, several of which point to compromised WordPress sites, suggesting a phishing or malware distribution campaign. The PDF structure and embedded links are consistent with spearphishing attachments designed to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4722

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://ketchas.ru/uplcv?utm_term=how+regenerative+braking+system+works+pdf PDF link annotation
    • https://amadesafar.ir/basefile/amadesafarir/files/domosulikazulizabeke.pdfIn PDF document text
    • https://aryaayur.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c53cb0c0ddc---viwinaxizajuzulabexem.pdfIn PDF document text
    • http://eduomania.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c1149f34aa6---31756689139.pdfIn PDF document text
    • https://www.businesswatchguardingservices.co.uk/wp-content/plugins/super-forms/uploads/php/files/gvamm5gbqcrn8pt5c9584h93oa/74838550254.pdfIn PDF document text
    • https://stpetejazz.com/wp-content/plugins/super-forms/uploads/php/files/vqu7th1ha1er9ehss1phjc7149/sapekivubonifik.pdfIn PDF document text
    • https://gea99.com/ckfinder/userfiles/files/filolegosofon.pdfIn PDF document text
    • https://greenline.bg/userfiles/file/22263379792.pdfIn PDF document text
    • https://lakeshoresmilesdentistry.com/wp-content/pluginIn PDF document text

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