Malicious PDF — malware analysis report

Static analysis result for SHA-256 c794f143d0222342…

MALICIOUS

PDF

22.5 KB Created: 2021-05-28 10:40:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-04
MD5: 11b160d63fada4bf0ebc1cea909f09bd SHA-1: 66221746e8f93b11a8e053268b4991a85a52458d SHA-256: c794f143d02223422e387904604e07dc49826d441dc4624bdb1c81d881095a4a
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF is identified as an image-only lure, containing a screenshot that overlays a clickable action. This action directs the user to a URL shortener, which is a common tactic in phishing and scam campaigns. The embedded text 'ЖМИТЕ НА КАРТИНКУ' (Click on the picture) further supports this lure.

Machine Learning

  • Nyx PDF Classifier clean score 0.0301

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 22 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://msen.page.link/qZs9 In PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003b2f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3B2F 7608 bytes
SHA-256: 1b4f4fa5198d456c1812a07624d77f2057b41688eace4384b551a7d4bff98e07
font_01_sfnt_off00004ec8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4EC8 2828 bytes
SHA-256: 18b7f5b19c0937289a672192218e7093aad6fbb16eb981021ccaab63acb9e7bb

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