Malicious PDF — malware analysis report

Static analysis result for SHA-256 27d7732bd4b127ca…

MALICIOUS

PDF

20.4 KB Created: 2021-06-05 09:02:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-13
MD5: 6f2e9b08fa541dcb4821dab9beb15674 SHA-1: 045fee541ae27f0bfcf9d0f4c131c7a277d143a2 SHA-256: 27d7732bd4b127ca675980e2229c32ad3b045b78937284a924b528736fa7102c
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF is identified as an image-only lure, a common tactic for phishing campaigns. It contains a shortened URL, daserropl.page.link/qAQ3, which is likely the primary malicious payload delivery mechanism. While no scripts were explicitly extracted, the PDF structure and heuristic firings suggest an attempt to exploit user interaction via a deceptive visual.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7431

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 20 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://daserropl.page.link/qAQ3 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_off00003e8b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3E8B 12396 bytes
SHA-256: 9651c78dad64c31681e27aaf77368dfa0aab65a72df78104afb2fc8edab34c59

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