Malicious PDF — malware analysis report

Static analysis result for SHA-256 6bbf25cf7bcf600a…

MALICIOUS

PDF

8.7 KB Created: 2021-08-09 21:17:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 9b40cb03ed7289b50ae43ad8c3ac9843 SHA-1: 127b86bcb7f8a2ae5364c659af7eaa02061c1dfb SHA-256: 6bbf25cf7bcf600a45dba70d87fac68ff5123dfc227b697566aee5fd45fd313d
62 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.1712

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 8 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://monsher.page.link/6VPQ In PDF document text
    • http://www.microsoft.com/typography/ctfontshttp://www.munchfonts.comMicrosoftIn PDF document text
    • http://www.microsoft.com/typography/fonts/default.aspxIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001545.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1545 5084 bytes
SHA-256: f95d40e2950ea552301c19853b6c40df18764d1bbd6f5fa51849987c321f350a