Malicious PDF — malware analysis report

Static analysis result for SHA-256 f0c4235000468a7b…

MALICIOUS

PDF

35.8 KB Created: 2021-06-12 16:55:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 802b69007ca9f7c3298ee7ff58994431 SHA-1: 5071f639c17b8a99fecac184337ed8604cab6542 SHA-256: f0c4235000468a7ba66a6173da353c0265171225ac6b801cbbcab452ac5c791e
114 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF is identified as a phishing lure due to its image-only nature and embedded clickable link. The heuristic PDF_IMAGE_LURE indicates a common tactic where a screenshot is presented as a document, hiding an actionable element. The embedded URL, https://allytemp.ru/uplcv?utm_term=chrome+os+pdf+annotation, is the primary indicator of malicious intent, likely directing the user to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6860

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://allytemp.ru/uplcv?utm_term=chrome+os+pdf+annotation PDF link annotation
    • http://gennarimaq.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1609c116bd33c9---zagifekigib.pdfIn PDF document text
    • http://www.hotel-margherita.com/wp-content/plugins/formcraft/fileIn PDF document text