Malicious PDF — malware analysis report

Static analysis result for SHA-256 85e158f46c1e1ad3…

MALICIOUS

PDF

19.4 KB Created: 2021-05-28 10:32:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-13
MD5: 67dd1525aa2e3dd45a6002ddfcf35823 SHA-1: d3228d8ea3ad34cd304a3aeffe91a12c77a1c7a4 SHA-256: 85e158f46c1e1ad3481ab15fda2de3188c3703b14962b949a869042e6bc30702
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF is identified as an image-only lure, a common tactic for phishing or malware delivery. It contains a single embedded URL that redirects through a URL shortener. The document body text, though heavily obfuscated, contains Russian phrases suggesting a "check your luck" or "click the picture" lure, reinforcing the phishing pretext.

Machine Learning

  • Nyx PDF Classifier clean score 0.0873

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://goodpri.page.link/AnmA In PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003b1e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3B1E 6752 bytes
SHA-256: de5eb335bb85f001ccd5c3b6e84e595e494ea5f7e2051f1b368ef3f0e4e929cb

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