Malicious PDF — malware analysis report

Static analysis result for SHA-256 b015d9174ce5de1e…

MALICIOUS

PDF

22.2 KB Created: 2021-05-28 10:40:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-13
MD5: c2321c8af2cc10c03d8bbc3e0736f2e6 SHA-1: 64b0effeefcea5cde5e6b32b4251a2241f60e63c SHA-256: b015d9174ce5de1e83da73e26a8ee2eba077d544623f7ab2c13ae2512938fc2f
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is a PDF that presents as an image, a common lure technique to trick users into clicking embedded links. The primary link identified uses a URL shortener, which is often employed to obscure malicious destinations. While the URL shortener itself resolved to a benign site in testing, the overall pattern suggests a phishing or malware delivery attempt.

Machine Learning

  • Nyx PDF Classifier clean score 0.1174

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 22 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://bezplat.page.link/vwrq 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_off00003af8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3AF8 15752 bytes
SHA-256: 3d33abb830913a72f4cbbc8022ea92d33d6c2cd282c6a0e4cd14de835f4472c6

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