PDF static analysis report

Static analysis result for SHA-256 491461c160f31ce2…

SUSPICIOUS

PDF

11.9 KB Created: 2021-08-08 18:39:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 1feae054e3fdccf3646739a141c0a3b5 SHA-1: 26c0f033568f8537d1ca2f9a92b034e5e07f986b SHA-256: 491461c160f31ce28b64cd69e4795f230b289a7d1299489c9151f9c921e6af19
42 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.1494

Heuristics 3

  • 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 11 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • Image-only PDF lure with a single link to a non-reputable host medium PDF_IMAGE_LURE_NONREPUTABLE_LINK
    PDF is image-heavy with little real text and its only clickable action is a single external link to a host that is not known-good. This is the canonical malspam carrier shape — a screenshot-like 'click to view' page whose sole purpose is to funnel the victim to one redirect/landing URL on a compromised or throwaway domain. Flagged suspicious rather than malicious because the link alone (no shortener / typosquat / brand path) is the only corroborator beyond the image lure.
  • 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 http://wertolvaer.premmise.ru 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_off00001638.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1638 14240 bytes
SHA-256: 42f77cfcf56d3d28047d61f535fba0cd9e59e6122bceb8c693dc875bd782653a