Malicious PDF — malware analysis report

Static analysis result for SHA-256 3c3079f65359a9d0…

MALICIOUS

PDF

35.9 KB Created: 2021-07-03 12:15:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-27
MD5: 2892a8e297052d5f9721690a731e7138 SHA-1: da1b4da2e7d53bf81c53e07bf13f646a4de19582 SHA-256: 3c3079f65359a9d08ebd6d70fba0a4d8a61b92f8baa0e02597122a00b88c8528
114 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF is identified as an image-only lure, typical for phishing attacks, designed to trick users into clicking embedded links. ClamAV detection and ML classification confirm its malicious nature. The embedded URLs point to suspicious PDF files hosted on external domains, likely serving as part of a multi-stage attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7874

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://www.americanapi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160abccc18bff6---dawapajizad.pdf In PDF document text
    • https://frasertechno.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ab1a881ebf1---gewaz.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/zMnd8XtcwSM/uplcv?utm_term=setting+up+android+studio+for+react+nativePDF link annotation

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