Malicious PDF — malware analysis report

Static analysis result for SHA-256 e525071ad2a712c2…

MALICIOUS

PDF

53.0 KB Created: 2018-09-10 12:49:31 -07:00 Authoring application: Microsoft® Word 2016
MD5: 6aba4d243320974465aa08b9e5a37112 SHA-1: 1a7ee58c47cad4a03ca69540943e7e7d00fd4388 SHA-256: e525071ad2a712c2b59967bc4c5a1d884d946ce4650b20278d9ec9466eda6ea4
62 Risk Score

Malware Insights

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

The PDF was identified as an image-only lure, a common tactic for phishing. It contains a single embedded URL that points to a URL shortener, likely to obscure the final malicious destination. The document body was unreadable, but the heuristics strongly indicate a phishing attempt.

Machine Learning

  • Nyx PDF Classifier clean score 0.0004

Heuristics 3

  • Image-only PDF lure links through URL shortener high PDF_IMAGE_LURE_SHORTENER_LINK
    PDF is image-heavy with little real text and its clickable action points to a URL shortener. This is a high-confidence credential-phishing carrier shape: the visible page is a screenshot-like prompt while the destination is hidden behind redirect infrastructure.
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 2 image(s), only 0 text block(s), carries a click-outward action, and is only 53 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://bit.ly/2MbSL4c
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://ns.adobe.com/pdf/1.3/
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/

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