Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb2a6876cb7929c3…

MALICIOUS

PDF

74.9 KB Created: 2020-10-15 18:53:11 +00:00 Authoring application: Chromium (via Skia/PDF m86)
MD5: d3df7b1d5250c0df05dcddc0af185b5d SHA-1: 7d0a878034291cf6257b6b3f2610954a63b3e007 SHA-256: eb2a6876cb7929c3b5d75f545801b92245a5c2c9e4958ec623e9360f3a52476e
110 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file is identified as malicious due to its structure, which includes an image-only lure and repeated, invisible links. The primary heuristic indicates that this is a phishing lure designed to trick users into clicking a link. The embedded URL is the main indicator of compromise, likely serving as a download or redirection point for a secondary payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8690

Heuristics 3

  • Invisible/repeated PDF links deliver payload file critical PDF_REPEATED_PAYLOAD_LINK_LURE
    PDF uses invisible link annotations and points to a direct payload download. Repeated invisible links or lure-like payload names such as document/unlock/verify archives match malware-delivery PDF carriers where the page is only a prompt and the real payload is fetched from the linked URL.
  • 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 74 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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://www.walvisbaycc.org.na/wp-content/theme/?cliente=bradescodigital2020@mail.com

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