Malicious PDF — malware analysis report

Static analysis result for SHA-256 91404ec2c8b6afbc…

MALICIOUS

PDF

104.7 KB Created: 2019-02-14 02:40:06 -12:00 Authoring application: (쁌¬F¤Ýgè/õ°¹‚|ÕJ‰¯ðG7S):͞‚m³c}¬Éq Ë2Oö!êÜk7 (via ±ëj\¨õ Qn¤x?´‰›!r˜7í݊) First seen: 2021-10-14
MD5: a8a10169dadecb11a2e1fad766179324 SHA-1: 256f3e564972217c6ab0aea55087139117dd5071 SHA-256: 91404ec2c8b6afbcfa1c4aab5a766a437bd91aa718ad8160bb96d4e4695a445d
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

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, which is likely used to obscure the final malicious destination. The document's structure and the presence of a URL shortener strongly suggest a phishing attempt to redirect the user to a malicious site.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3347

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 1 image(s), only 0 text block(s), carries a click-outward action, and is only 104 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 https://bit.ly/3z7J1R7 In PDF document text