Malicious PDF — malware analysis report

Static analysis result for SHA-256 082b259f9b6d131b…

MALICIOUS

PDF

39.4 KB Created: 2021-05-20 01:03:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 6e8ca7cb731e1b3e7208618549edf99d SHA-1: 5cfce5a163cee88aa292a4695cecd83a24fb90f2 SHA-256: 082b259f9b6d131b06676a3684058df2bb9f1c625fb59856a2d984b6f8802e8c
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that redirect to malicious infrastructure, specifically advertising a 'Roblox Hack Unlimited Robux' generator. The heuristic firings indicate that the PDF links to known malicious redirectors and employs a lure for free game hacks. The document body text reinforces this by displaying similar promotional content and the malicious URL.

Machine Learning

  • Nyx PDF Classifier clean score 0.0334

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 https://netcdn.xyz/app/431946152/roblox-hack-unlimited-robux-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
stream_003_off0000360c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x360C 26276 bytes
SHA-256: 25ee8059988d5773626a33333e643441f80d47a9d7d83e447fb5cb16576c63fd
font_01_sfnt_off0000731b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x731B 20248 bytes
SHA-256: 48410a8759a5118c74824351386018a5c9b672494e57d238a84d5ab0a14e06e5

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