Malicious PDF — malware analysis report

Static analysis result for SHA-256 94754d9c1819d271…

MALICIOUS

PDF

26.5 KB Created: 2021-05-28 10:44:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-02
MD5: 673cebd7ab4d89bb00d526c8df796753 SHA-1: 5ba30dcf6df0cd270c871df87c18d9c944dbe647 SHA-256: 94754d9c1819d2719a52864ab06d33bcfd872b4ec549636df323e9fe3d10365b
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The sample is an image-only PDF, a common technique for phishing lures. It contains a link that uses a URL shortener, which is often employed to obscure malicious destinations. The heuristic firings strongly indicate this is an image-based lure designed to trick users into clicking through to a potentially malicious site.

Machine Learning

  • Nyx PDF Classifier clean score 0.1196

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 26 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://soldm.page.link/KPoa 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_off000056f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x56F9 12396 bytes
SHA-256: 9651c78dad64c31681e27aaf77368dfa0aab65a72df78104afb2fc8edab34c59

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