Malicious PDF — malware analysis report

Static analysis result for SHA-256 3bed6fef5652c6bf…

MALICIOUS

PDF

110.0 KB Created: 2021-05-22 06:28:47 +03:00 Authoring application: Elizabeth Cook (via Billy Lewis) First seen: 2021-05-23
MD5: f971c4ac47ad05f947052b8b30732f7a SHA-1: 768ff78724908cb0f72e91fc383f6782eb589faf SHA-256: 3bed6fef5652c6bf60fb8b691cd10b3fd23529915e15baaa413c7b8ab391f095
94 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains only an image and a clickable link, a common tactic for phishing lures. The heuristic 'PDF_IMAGE_LURE' confirms this, indicating the document is designed to trick users into clicking an external URL. The embedded URL points to a suspicious domain, further supporting the malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5200

Heuristics 4

  • Image-only PDF carries local builder path plus remote links high PDF_IMAGE_LURE_LOCAL_FILE_AND_REMOTE_URI
    PDF is an image-only click lure that contains both remote HTTP(S) destinations and a file:/// URI exposing a local Windows/Linux builder path. That co-occurrence is not normal document linking; it matches generated clickbait/phishing carriers where the visible page is a screenshot and the clickable area sends the user to external infrastructure.
  • 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 109 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://6kskvun.sed.aldilamineral.com PDF link annotation

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