Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f4d33e92382ef7e…

MALICIOUS

PDF

30.2 KB Created: 2021-05-28 10:46:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-13
MD5: 917e7f43a967b7d41429391279da9f7f SHA-1: 62ff14e4a33716c01623cebbbb13021f48e9d724 SHA-256: 2f4d33e92382ef7efbde32f227ece9f5aaebaa6a0f2dd8987b79087290cfcc04
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF is an image-only lure, typical of phishing campaigns, designed to trick users into clicking a link. The embedded URL, https://dlydruzei.page.link/DQbR, is a URL shortener, which is often used to obscure malicious destinations. No scripts were extracted, but the PDF structure itself suggests a malicious intent to redirect the user.

Machine Learning

  • Nyx PDF Classifier clean score 0.1203

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 30 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://dlydruzei.page.link/DQbR 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_off00005c57.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C57 15352 bytes
SHA-256: 568a53de0f2e7dec117e8e7df3e42ddb964b5e92b06f1495abdb595a72072413

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