Malicious PDF — malware analysis report

Static analysis result for SHA-256 a95feed19f59d2a9…

MALICIOUS

PDF

19.2 KB Created: 2021-05-28 10:46:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-02
MD5: 343718375cb65ce66ef763eee2b1a0bb SHA-1: 7d9142cd4f98c2158626c29f09a17cf69785275e SHA-256: a95feed19f59d2a97dfa5b05ad11f42637259aa2c4b51bbaa28b03d84d494ed3
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF is an image-only lure, a common tactic for phishing or scam campaigns. It contains a clickable link disguised as an image, which directs users to a URL shortener. The primary heuristic indicates this is a deliberate attempt to trick users into clicking through to a potentially malicious destination.

Machine Learning

  • Nyx PDF Classifier clean score 0.0577

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 19 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://prizon.page.link/7Awx In PDF document text
    • http://www.microsoft.com/typography/ctfontshttp://fontfabrik.comMicrosoftIn PDF document text
    • http://www.microsoft.com/typography/fonts/default.aspxIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003ae7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3AE7 5244 bytes
SHA-256: fbae202651dcd4d8d53dd3833dba7433c0d845e3e3160110ca1bab476fcc2d4a

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