Malicious PDF — malware analysis report

Static analysis result for SHA-256 0027f136034b9493…

MALICIOUS

PDF

70.7 KB First seen: 2021-06-13
MD5: 5eb249f3a26b4de77a06b80a14d82d99 SHA-1: a4adb06dc5adee9c723908c4960d19fe4024c20f SHA-256: 0027f136034b9493b38b29d2d7a74a910e8a04ef136aa6b4a613c51b89e919cc
122 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged by ClamAV as malicious and contains a critical heuristic indicating a link to known malicious redirector infrastructure. The embedded URL points to a suspicious domain, likely used for phishing or distributing further malware. No scripts were extracted, but the presence of a malicious link is sufficient evidence of a malicious intent.

Machine Learning

  • Nyx PDF Classifier clean score 0.0006

Heuristics 3

  • 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 links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://crophysi.ru/square?utm_term=astm+a36+steel+plate+pdf In PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text

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