Malicious PDF — malware analysis report

Static analysis result for SHA-256 0a4b7f4ed8bddd1c…

MALICIOUS

PDF

30.2 KB Created: 2021-05-28 10:31:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-13
MD5: fe50601518b83f47a48aaa6216754df6 SHA-1: d5a4d5ec9289fe1a7a4953c7a13fc757832bc078 SHA-256: 0a4b7f4ed8bddd1c234b91f99e96856a62aae98286fc161bc5f1887d9e27c3f7
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file is identified as an image-only lure, containing a single image and minimal text, designed to trick users into clicking a link. The embedded URL, https://volde.page.link/AY2a, is presented as a shortened link, a common tactic in phishing campaigns. This suggests the document's primary purpose is to redirect users to a potentially malicious site.

Machine Learning

  • Nyx PDF Classifier clean score 0.1455

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://volde.page.link/AY2a 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_off00005c53.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C53 15252 bytes
SHA-256: 5fc925885d7ec8dcb3dc1560ea2ae587cf66f8774e5f99c810696f33836412c8

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