Malicious PDF — malware analysis report

Static analysis result for SHA-256 c8e4b7327e77225f…

MALICIOUS

PDF

36.8 KB Created: 2021-05-17 16:00:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 01f020aa5030ad2aa228706c8c02b9e1 SHA-1: 68a0e9176fffd42e1cf5f5388135980a2a6bded1 SHA-256: c8e4b7327e77225f475fcb7c27ecfdcd77cec21bf40fb441528bbf2194083070
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded links that redirect to a URL associated with game hacks and free generators, a common lure for malicious downloads. The document body explicitly mentions 'How To Hack And Get Free Robux' and includes a call to action to access a 'Roblox Generator'. While no scripts were extracted, the PDF structure and heuristics indicate a malicious redirector designed to trick users into downloading potentially harmful content.

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 https://netcdn.xyz/app/431946152/how-to-hack-and-get-free-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_off0000348e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x348E 24476 bytes
SHA-256: 7a8b060d5a153d2899ae8e498c7cefee85d9cd7addd47feb27d9bfcc9a6329a6
font_01_sfnt_off00006c8d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C8D 18856 bytes
SHA-256: d1af75e50eba08e00cb44d21026f4cdbf29920fa5250f1112d9d0eb56b6eb802

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