Malicious PDF — malware analysis report

Static analysis result for SHA-256 92084a50c98bedbf…

MALICIOUS

PDF

99.8 KB Created: 2021-09-06 04:04:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-05
MD5: 12f5c1c0b3ccea2410443a9613a18146 SHA-1: fc46fe3d3bab09f3bd6fb8b344ac43d3b64f1dcf SHA-256: 92084a50c98bedbf17b3f9c713af8c2b705151ce1182731ab3a8c86071cc98b8
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file was detected as malicious by ML classifiers and ClamAV, specifically as a phishing trojan. It contains multiple embedded URLs, several of which point to compromised WordPress upload directories, suggesting a distribution point for malicious content. The presence of these links and the overall detection indicate a phishing or malware delivery attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6052

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://cructi.ru/uplcv?utm_term=holden+colorado+owners+manual+pdf PDF link annotation
    • http://www.iycadana.org/wp-content/plugins/super-forms/uploads/php/files/jrp2t9ked5nbei24dr52rf0c62/masatobigaguletudirodeba.pdfIn PDF document text
    • https://polinagerz.ru/wp-content/plugins/super-forms/uploads/php/files/qsq0a3k2lo634b5a379bvddh54/xenoliwidovikekufutopod.pdfIn PDF document text
    • https://autotrans911.com/thread/admin/uploads/file/17474068456.pdfIn PDF document text
    • http://songhandiban.com/uploadfile/file/2021080603043173499.pdfIn PDF document text
    • https://pluckywize.com/wp-content/plugins/formcraft/file-upload/server/content/files/160de73d83be83---jumejepozisikoz.pdfIn PDF document text
    • http://limpiasol.com/wp-cIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

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