Malicious PDF — malware analysis report

Static analysis result for SHA-256 c54c9252571ac5b2…

MALICIOUS

PDF

34.4 KB Created: 2021-06-27 19:11:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 0a95238d32ef770b6761b42f0327364b SHA-1: 4310733769bbd583c1bc7bdc9a8c9888b4cbc4db SHA-256: c54c9252571ac5b2a9bdff045ba6bef00cdd4c34f4866df68b9d29186f3558e4
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links that redirect to malicious infrastructure, specifically targeting users interested in game hacks and free in-game currency. The primary lure is a 'free generator / game hack' for Roblox, which leads to a known malicious redirector. The document body and heuristics indicate a social engineering tactic to trick users into visiting potentially harmful websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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/counter-roblox-hacked-game-hack In PDF document text
    • http://feuerwehr-rheinau.de/images/minecraft-java-edition-download-free_GM479516143.pdfIn PDF document text
    • http://feuerwehr-rheinau.de/images/free-robux-dont-get-anything-from-survey-varification_GM431946152.pdfIn PDF document text
    • http://feuerwehr-rheinau.de/images/roblox-hacks-scythe_GM431946152.pdfIn PDF document text
    • http://feuerwehr-rheinau.de/images/get-tiktok-followers-free_GM835599320.pdfIn PDF document text
    • http://feuerwehr-rheinau.de/images/robux-com-free_GM431946152.pdfIn PDF document text
    • http://feuerwehr-rheinau.de/images/coin-master-hack-without-verification-2021_GM406889139.pdfIn PDF document text
    • http://feuerwehr-rheinau.de/images/easy-way-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://feuerwehr-rheinau.de/images/how-to-get-free-black-wings-in-roblox_GM431946152.pdfIn PDF document text
    • http://feuerwehr-rheinau.de/images/cheat-code-for-roblox-tides-knife_GM431946152.pdfIn PDF document text
    • http://feuerwehr-rheinau.de/images/infinite-jump-roblox-hack-free-download_GM431946152.pdfIn PDF document text
    • http://feuerwehr-rheinau.de/images/free-robux-no-scam_GM431946152.pdfIn PDF document text
    • http://feuerwehr-rheinau.de/images/minecraft-building-hacks_GM479516143.pdfIn PDF document text
    • http://feuerwehr-rheinau.de/images/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://feuerwehr-rheinau.de/images/get-free-money-in-adopt-me-roblox_GM431946152.pdfIn PDF document text
    • http://feuerwehr-rheinau.de/images/coin-master-free-spins-iphone_GM406889139.pdfIn PDF document text
    • http://feuerwehr-rheinau.de/images/hack-inventary-roblox_GM431946152.pdfIn PDF document text
    • http://feuerwehr-rheinau.de/images/roblox-got-talent-hack_GM431946152.pdfIn PDF document text
    • http://feuerwehr-rheinau.de/images/how-can-i-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://feuerwehr-rheinau.de/images/email-scammer-claiming-to-be-hacker-in-roblox_GM431946152.pdfIn PDF document text
    • http://feuerwehr-rheinau.de/images/worst-roblox-avatars_GM431946152.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_off00002fa8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FA8 22276 bytes
SHA-256: d7d5e11c8495ca6b8db26e6ae8b4cce6ae2117d8779a12cc1f0a14cefd23b798
font_01_sfnt_off00006123.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6123 19072 bytes
SHA-256: 91a0465c95c4f91d11fe88a97ef67e940f078ac64963c9fa244aea4e0f18d6c6

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