Malicious PDF — malware analysis report

Static analysis result for SHA-256 45b1f6aaf66e47ad…

MALICIOUS

PDF

18.1 KB Created: 2021-05-28 16:23:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-04
MD5: 312e63372aa11efacd73cef3e5e77192 SHA-1: 13a365f6d5201a27b5448d231e11308c5324c8d3 SHA-256: 45b1f6aaf66e47adce033fa7473e0bc6f951cd7f8987db98171a0072ba8ed203
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF is an image-only lure, typical of phishing or malware delivery. It contains a single embedded URL that leads to a URL shortener, which is a common technique to obscure malicious destinations. The document body explicitly instructs the user to 'click the picture!', reinforcing the lure.

Machine Learning

  • Nyx PDF Classifier clean score 0.0054

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 18 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://svimn.page.link/x9nb In PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002e89.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E89 14148 bytes
SHA-256: 5176883209430260c97139f84679bb10d04e15d34ea0bf7161a1eb60f5cab4b1

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