Malicious PDF — malware analysis report

Static analysis result for SHA-256 08b6445edbdbb418…

MALICIOUS

PDF

40.0 KB Created: 2021-05-23 14:04:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: dac9b345c0af5d307fb2a80e0bbac28f SHA-1: a42dd548ef7e362e0cd3057970fb226fe5d7bb41 SHA-256: 08b6445edbdbb418cd2d8b9074c9707549a13782534d7fc79574b275ce9c8bb5
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors and infrastructure, disguised as 'free Robux' or 'game hack' generators. The document body explicitly contains a call-to-action phrase 'CLICK HERE TO ACCESS ROBLOX GENERATOR', reinforcing the lure. The embedded URLs likely lead to further malicious content or malware downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9476

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/free-robux-websites-that-actually-work-game-hack In PDF document text
    • http://brinicombe.co.uk/images/minecraft-pe-hacks-ios_GM479516143.pdfIn PDF document text
    • http://brinicombe.co.uk/images/play-minecraft-free-online-no-download_GM479516143.pdfIn PDF document text
    • http://brinicombe.co.uk/images/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://brinicombe.co.uk/images/free-coins--spins-coin-master_GM406889139.pdfIn PDF document text
    • http://brinicombe.co.uk/images/coin-master-hack-spins-app_GM406889139.pdfIn 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_off0000375f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x375F 28020 bytes
SHA-256: 78fd833522bf29accebb3d34fffc2fc7a5197d74f59b4723f55d91d79e6d0dce
font_01_sfnt_off0000784f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x784F 19252 bytes
SHA-256: f49525d2cb353299e95430044cca9c62699809686ebb763340304ea0e82a2cbb

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