Malicious PDF — malware analysis report

Static analysis result for SHA-256 d25d388ab3a803af…

MALICIOUS

PDF

171.5 KB Created: 2021-05-28 18:49:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-30
MD5: 45f6202086e38a36051c6e7a1bf20cb5 SHA-1: 0eecd3446c8ac195f245c4636e2d3cd28277c618 SHA-256: d25d388ab3a803af72f1d03229d6d1aae3d40d6c9d56483fddeb48c1136eb7f6
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF was identified as an image-only lure, a common tactic to hide malicious links behind a visual facade. The embedded URL points to a URL shortener, which is frequently used to obscure the final destination and evade initial detection. While no scripts were directly extracted, the PDF structure and heuristic firings strongly suggest an intent to redirect the user to a malicious site.

Machine Learning

  • Nyx PDF Classifier clean score 0.0759

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 171 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://rewtop.page.link/NaZ9 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_off00029ab5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x29AB5 12396 bytes
SHA-256: 9651c78dad64c31681e27aaf77368dfa0aab65a72df78104afb2fc8edab34c59

Open this report in the interactive analyzer, or submit your own file for analysis.