Malicious PDF — malware analysis report

Static analysis result for SHA-256 c2dc777da39e4aba…

MALICIOUS

PDF

74.7 KB Created: 2021-05-28 18:48:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-04
MD5: 025b9765be048410dfc3774cb786804f SHA-1: c39109579d84f21a925e0115a815ef38d6451b4b SHA-256: c2dc777da39e4aba1ecb6033941e69801cf0dd42681fcb1ef69b6c4116123eac
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF is an image-only document designed as a lure, containing a clickable link that redirects to a URL shortener. This technique is commonly used to obscure the final destination and is often employed in phishing campaigns or to download further malicious content. No scripts were extracted, but the PDF structure and heuristics strongly suggest a malicious intent to redirect the user.

Machine Learning

  • Nyx PDF Classifier clean score 0.0219

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 74 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://goodpri.page.link/92ae 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_off00011790.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11790 12396 bytes
SHA-256: 9651c78dad64c31681e27aaf77368dfa0aab65a72df78104afb2fc8edab34c59

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