Malicious PDF — malware analysis report

Static analysis result for SHA-256 94a0a4739dfb3cb3…

MALICIOUS

PDF

21.2 KB Created: 2021-05-28 10:45:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-04
MD5: e065f224dea5a2d63409a0b513093afc SHA-1: 99db2d861c97103e7d940787a559b94a39bf32f7 SHA-256: 94a0a4739dfb3cb36ba57e7fb639419dba3d2a63e4dca98bcbb22a3df71066b1
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF is identified as an image-only lure, a common tactic to trick users into clicking on embedded links. The primary link, 'https://prizon.page.link/LbNr', is a URL shortener, which is frequently used to obscure malicious destinations. While the URL itself is marked as benign, the overall pattern suggests a phishing or malware delivery attempt.

Machine Learning

  • Nyx PDF Classifier clean score 0.1235

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 21 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://prizon.page.link/LbNr 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_off00003b0e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3B0E 14148 bytes
SHA-256: 7fedbde44e5163a0a7380ec83ff154e74f28b4c8eb2bae344549ed756b4b3652

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