Malicious PDF — malware analysis report

Static analysis result for SHA-256 7320726c44c8a975…

MALICIOUS

PDF

22.0 KB Created: 2021-05-28 16:37:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-30
MD5: a2e6be39322a2908bc17cedde2b9ac6f SHA-1: d34db9b1fec0604e24af68a799ae44f31184d6f1 SHA-256: 7320726c44c8a975929100ae443fad7d76ec4eb993dfac34e92a6c73b855db60
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF is an image-only lure, typical of phishing campaigns, prompting the user to click a link disguised as an image. The embedded URL, https://volde.page.link/rpKT, is a URL shortener, which is commonly used to obscure malicious destinations. The heuristic firings strongly indicate this is a malicious lure designed to redirect the user.

Machine Learning

  • Nyx PDF Classifier clean score 0.0063

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://volde.page.link/rpKT In PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004608.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4608 5304 bytes
SHA-256: 9acc7bfc78d2262dae2cd2b3125d46ab3e3f7118fcb339901ae237c2e7d26e4e

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