Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5a7827b0dd786b1…

MALICIOUS

PDF

38.1 KB Created: 2021-05-26 10:37:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-03
MD5: f1863d823a0e0013ad9db5346941036b SHA-1: dc22a45e07dbeb027a01e1840628c02415839263 SHA-256: c5a7827b0dd786b16b47be26cecb5423a49c284257946d655cb8e35b5da8c8a5
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF is identified as an image-only lure, containing a single image and minimal text, which is a common tactic for phishing. It directs users to a URL shortener, 'emuske.page.link/Uzfp', which likely leads to a malicious site. The file's structure and the presence of a click-outward action strongly suggest it's used as an initial vector for further compromise.

Machine Learning

  • Nyx PDF Classifier clean score 0.0757

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 38 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://emuske.page.link/Uzfp 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_off00007edd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7EDD 14252 bytes
SHA-256: d770b6497c599eb449116818fe8bbe322729de33cf5151fa4e9f3bb6441b6d35

Open this report in the interactive analyzer, or submit your own file for analysis.