Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd52f2e174bb1d28…

MALICIOUS

PDF

37.5 KB Created: 2021-09-06 00:09:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-07
MD5: e52ad57bcc3b03e40d49eb69e0984781 SHA-1: 18313601eec8ec3015cd6b2e3f273ea3f8f49cd1 SHA-256: dd52f2e174bb1d2866a87c9f62a6b32286070bdbf291083dd4ee499122c8a16c
84 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is a PDF that appears to be an image-only lure, as indicated by the PDF_IMAGE_LURE heuristic. It contains an embedded URI that points to a potentially malicious URL. ClamAV also detected this file as Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0, suggesting a phishing or trojanized document.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3316

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 37 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://feedproxy.google.com/~r/skout/mBVl/~3/A3Ryygt5BCM/uplcv?utm_term=shuzo+fujimoto+book+pdf PDF link annotation

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