Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e165e7176e739ed…

MALICIOUS

PDF

22.2 KB Created: 2021-05-28 10:46:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-02
MD5: c009b5a0a6889722d46537cd4de7ee83 SHA-1: 223ac69539655c7d6fdca852a72742d53d6336a3 SHA-256: 8e165e7176e739ed0a130d2380d81598415b44bbbfa0946ae53cc5380d2263e6
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 campaigns. It contains a clickable link that uses a URL shortener, which is often employed to obscure malicious destinations. The heuristics indicate a high likelihood of this being a phishing attempt or a distribution vector for further malicious content.

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://goodpri.page.link/iQ8t 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_off00003b00.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3B00 15752 bytes
SHA-256: 3d33abb830913a72f4cbbc8022ea92d33d6c2cd282c6a0e4cd14de835f4472c6

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