Malicious PDF — malware analysis report

Static analysis result for SHA-256 40a74a2f9b8345b4…

MALICIOUS

PDF

1.10 MB Created: 2017-10-30 11:48:27 Authoring application: CorelDRAW (via Corel PDF Engine Version 3.0.0.576)
MD5: cc821cf968ec1b7f4e27b0fb674c0130 SHA-1: d948341cd95994e3033c8b3afd584325a8dc9e64 SHA-256: 40a74a2f9b8345b429c830adc99c6918db3305da82df774c4e2260f44597a6f7
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF was detected as malicious by ClamAV (Pdf.Dropper.Agent-7253919-0). It contains an external URI pointing to 'http://oficinadolar.com.br/libraries/joomla/installer/agreement.html'. The PDF is also flagged as an image-only lure, indicating it likely contains no readable text and relies on visual deception to trick users into interacting with embedded links.

Machine Learning

  • Nyx PDF Classifier clean score 0.0046

Heuristics 4

  • ClamAV: Pdf.Dropper.Agent-7253919-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-7253919-0
  • PDF paints image(s) but contains no text operators medium PDF_IMAGE_ONLY_LURE
    PDF has 1 image XObject(s) and the content stream contains no text-emitting operators (BT/ET, Tj, TJ, ', ") in either raw bytes or decompressed streams — this is the screenshot-as-PDF pattern used to bypass text-based scanners and to deliver instructions purely through rendered pixels. It is informational unless paired with invisible links or risky URI context.
  • 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 http://oficinadolar.com.br/libraries/joomla/installer/agreement.html