Malicious PDF — malware analysis report

Static analysis result for SHA-256 b7ae79e5480a94de…

MALICIOUS

PDF

17.4 KB Created: 2021-06-05 09:07:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-20
MD5: b0bf463c45631f115f7730ca262e59f6 SHA-1: cf6882825c7fe0ead15b638cd7fdebc87f83af2a SHA-256: b7ae79e5480a94de4e19d0d9a9caad7a7e5648dce8a3d33966ee60a2b6b780bf
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF was identified as an image-only lure, a common tactic to trick users into clicking on what appears to be a benign image but is actually a link. The embedded URL, https://benevioso.page.link/xcLg, is a URL shortener, which is frequently used to obscure the final malicious destination. The heuristics strongly indicate a phishing or malware distribution attempt via a deceptive document.

Machine Learning

  • Nyx PDF Classifier clean score 0.0754

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 17 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://benevioso.page.link/xcLg 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_off00003285.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3285 12396 bytes
SHA-256: 9651c78dad64c31681e27aaf77368dfa0aab65a72df78104afb2fc8edab34c59

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