Malicious PDF — malware analysis report

Static analysis result for SHA-256 24f851e967ea9ed7…

MALICIOUS

PDF

29.5 KB Created: 2021-05-28 10:40:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-04
MD5: 30b722da5a0b0266b465e2069200c454 SHA-1: cad473801222fbf8fa9ddcc46824180280fa1070 SHA-256: 24f851e967ea9ed75d8100c3236886d808e3191217c1d6a91893aa8382e0251f
62 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 or malware distribution. It contains a single embedded URL that uses a URL shortener, which is a high-risk indicator. The document's structure and heuristics strongly suggest it's designed to trick the user into clicking the link to initiate a malicious download or redirect.

Machine Learning

  • Nyx PDF Classifier clean score 0.1308

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 29 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://svimn.page.link/4D6z In PDF document text
    • http://www.microsoft.com/typographyMicrosoftIn PDF document text
    • http://www.microsoft.com/typography/fonts/In PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005c70.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C70 7700 bytes
SHA-256: 87fe075ad069eb7e51f44247a23482fc0728c9f2303c1d20472a5421a55c7a31

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