Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee1d1e37c3ead864…

MALICIOUS

PDF

5.8 KB Created: 2021-10-23 16:41:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: fac98a9554d07976400307df5e6de1d5 SHA-1: 144c8b4adb554473eb7fa073b2e21a603c93bdc6 SHA-256: ee1d1e37c3ead86493697496f581cef2561f4a743169caa9eadb2b2027fbe591
72 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF was identified as a phishing lure due to its small size, image-heavy content, and a single embedded link to a non-reputable URL. The ML classifier also flagged it as malicious. The primary IOC is the embedded URL, which is likely used to redirect the user to a malicious website.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6490

Heuristics 3

  • 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 5 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • Image-only PDF lure with a single link to a non-reputable host medium PDF_IMAGE_LURE_NONREPUTABLE_LINK
    PDF is image-heavy with little real text and its only clickable action is a single external link to a host that is not known-good. This is the canonical malspam carrier shape — a screenshot-like 'click to view' page whose sole purpose is to funnel the victim to one redirect/landing URL on a compromised or throwaway domain. Flagged suspicious rather than malicious because the link alone (no shortener / typosquat / brand path) is the only corroborator beyond the image lure.
  • 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://moiervercc2.scdd.ru In PDF document text