Malicious PDF — malware analysis report

Static analysis result for SHA-256 84a1c90f1d0b2357…

MALICIOUS

PDF

35.8 KB Created: 2021-06-10 08:25:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 75965de69ee127de98aa1cd3cb276fee SHA-1: 4f91790deac39d4a5ae19fc945ff72fd7990ab89 SHA-256: 84a1c90f1d0b2357785a1039b205a559d2637785cf2fb6b7b572037acaefffdc
114 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF is identified as an image-only lure, typical of phishing campaigns, designed to trick users into clicking external links. The presence of multiple suspicious URLs, combined with ClamAV and ML classifier detections, strongly indicates malicious intent. The document's structure and content suggest it's a lure to redirect users to potentially malicious websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7155

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
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 35 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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://drafthe.ru/uplcv?utm_term=free+credits+life+selector PDF link annotation
    • http://tizianaiberti.it/userfiles/files/fedorixogupukinimez.pdfIn PDF document text
    • http://sciencevier.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b0464ee5129---romarixakevikorumamaz.pdfIn PDF document text