Malicious PDF — malware analysis report

Static analysis result for SHA-256 655745dd8dff272f…

MALICIOUS

PDF

25.4 KB Created: 2021-06-19 09:20:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 728c03a830380bcd6fc50df24cb116a3 SHA-1: 77510c85211a5b4c23ad2fba9aa73c66fa12c75f SHA-256: 655745dd8dff272f1b42a716faece686187cdbaac90708e1fa0dface5a84a695
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for a 'Robux Free Generator' and a malicious link pointing to a known redirector infrastructure. The embedded URL is designed to trick users into clicking it, likely leading to further malicious content or downloads. No scripts were extracted, but the document's structure and embedded URL strongly suggest a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier clean score 0.0312

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://netcdn.co/app/431946152/robux-free-infini-game-hack In PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000013e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13E5 20620 bytes
SHA-256: 69f85b07f8ff588ce7246505516a9904e40bb078690951ba18d77eaf63760ebb
font_01_sfnt_off00004037.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4037 18836 bytes
SHA-256: 65b17c89a25bc53b30d17e32a266d40d6c03a4d48fc40e6e1af54393e784c8e1

Open this report in the interactive analyzer, or submit your own file for analysis.