Malicious PDF — malware analysis report

Static analysis result for SHA-256 9a5b53d8cca5cecc…

MALICIOUS

PDF

19.6 KB Created: 2021-05-28 10:40:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-04
MD5: 46deb55682b1f028095564fe5a2db422 SHA-1: 9129b08fb2ef8834b1919e4bb0fbe93f4fba8d55 SHA-256: 9a5b53d8cca5cecce7c41d64eacc54dc9dc49cbc9f320e08ba926406b6557196
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF is an image-only document designed as a lure, indicated by the 'PDF_IMAGE_LURE' heuristic. It contains a clickable link disguised as an image, which directs to a URL shortener. The embedded text suggests a prize is waiting, further reinforcing a phishing or scam pretext. The URL shortener is a common tactic to obscure the final destination.

Machine Learning

  • Nyx PDF Classifier clean score 0.0873

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 19 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://goodpri.page.link/wozR In PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003b1b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3B1B 6880 bytes
SHA-256: 92974f018cf43f42b032a3c1c6d159c23e6470210f185581309626b616afb614

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