PDF static analysis report

Static analysis result for SHA-256 db31b42d10fac4fd…

SUSPICIOUS

PDF

8.6 KB Created: 2021-10-03 20:26:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 7dc0950550b2996721ab99841a6386fe SHA-1: 2d056e5e047ca465b99e8f59ca518997eedc34e3 SHA-256: db31b42d10fac4fd631050e6293ccac1b7bdb5b74ed9a38ccc782b4c9eeaaa2f
54 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF is identified as an image-only document designed as a lure, containing a clickable link to 'http://fvmhs.premmise.ru'. This pattern is typical for phishing attacks or to initiate a malware download. The ML classifier also flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5533

Heuristics 3

  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 2 image(s), only 0 text block(s), carries a click-outward action, and is only 8 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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 http://fvmhs.premmise.ru PDF link annotation
    • 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_off00000f06.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF06 12396 bytes
SHA-256: 9651c78dad64c31681e27aaf77368dfa0aab65a72df78104afb2fc8edab34c59