Malicious PDF — malware analysis report

Static analysis result for SHA-256 d4b9dedd576b4081…

MALICIOUS

PDF

179.9 KB Created: 2018-07-23 09:36:58 -06:00 Authoring application: Microsoft® Word 2016 First seen: 2019-09-30
MD5: 0bcc7f8e901cebe36a6d28d824c9ac2d SHA-1: b306e8ac60a27fe4b93a40b1c069b61d76ffda4b SHA-256: d4b9dedd576b408186b72418430b51e775866d28891b8dd99d234c6b55b64e53
64 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.0002

Heuristics 4

  • Image-only PDF lure links to a brand-impersonating path on an unrelated host high PDF_IMAGE_LURE_BRAND_PATH_LINK
    PDF is image-heavy with little real text and its clickable action targets a URL carrying a brand name ('wetransfer') as a path segment on a host that does not belong to that brand and is not known-good (e.g. 'sodecoperu.com/Docusign/index.php'). This is the credential-phishing carrier shape where a compromised or unrelated host serves a brand-named phishing kit behind a screenshot-like lure page. Distinct from the typosquat-host rule: here the host is honest-looking but the brand lives in the path.
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 2 image(s), only 2 text block(s), carries a click-outward action, and is only 179 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 http://mountainnavigation.co.uk/images/Wetransfer/index.php PDF link annotation
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://purl.org/dc/elements/1.1/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