Malicious PDF — malware analysis report

Static analysis result for SHA-256 4ce0b5593da460fc…

MALICIOUS

PDF

43.4 KB Created: 2021-05-11 22:35:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 03e8cba7b0758ce9d789420b61a5e83c SHA-1: c6c808ec18e9dee2d69f77add92975bb70a8eb37 SHA-256: 4ce0b5593da460fccc3480ed61bc0a29f038eabfb9b643a6f21e543ec390fdb1
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs that lead to known malicious redirectors and lures for game hacks and free currency. The document body and heuristics indicate a clear intent to trick users into visiting these sites, which likely serve as a gateway to further malicious content or exploits. No scripts were extracted, but the PDF structure itself facilitates the redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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/406889139/coin-master-daily-free-spins-link-app-download-game-hack In PDF document text
    • http://hocquaux.fr/images/free-robux-no-survey-or-human-verification_GM431946152.pdfIn PDF document text
    • http://hocquaux.fr/images/coin-master-cheat-engine-hack_GM406889139.pdfIn PDF document text
    • http://hocquaux.fr/images/free-robux-apps-that-work_GM431946152.pdfIn PDF document text
    • http://hocquaux.fr/images/how-to-download-minecraft-for-free-on-windows_GM479516143.pdfIn PDF document text
    • http://hocquaux.fr/images/roblox-hack-game_GM431946152.pdfIn PDF document text
    • http://hocquaux.fr/images/how-to-make-free-robux_GM431946152.pdfIn PDF document text
    • http://hocquaux.fr/images/inappropriate-roblox-games_GM431946152.pdfIn PDF document text
    • http://hocquaux.fr/images/coin-mast-hacks_GM406889139.pdfIn PDF document text
    • http://hocquaux.fr/images/coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
    • http://hocquaux.fr/images/hacks-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://hocquaux.fr/images/free-robux-generator-2021_GM431946152.pdfIn PDF document text
    • http://hocquaux.fr/images/get-free-minecraft-account_GM479516143.pdfIn PDF document text
    • http://hocquaux.fr/images/free-robux-that-actually-works_GM431946152.pdfIn PDF document text
    • http://hocquaux.fr/images/latest-coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • http://hocquaux.fr/images/how-to-get-free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://hocquaux.fr/images/coin-master-unlimited-spin-link_GM406889139.pdfIn PDF document text
    • http://hocquaux.fr/images/roblox-login-hack_GM431946152.pdfIn PDF document text
    • http://hocquaux.fr/images/robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://hocquaux.fr/images/hack-para-coin-master-sin-verification_GM406889139.pdfIn PDF document text
    • http://hocquaux.fr/images/hack-coin-master-apk-2021_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
stream_003_off00004cd2.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4CD2 24728 bytes
SHA-256: a6e22dca9af63ef38b8eb5f86f80b6a61df8c45ec2258067205e41ee6fb4d5ad
font_01_sfnt_off000085ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85AE 18816 bytes
SHA-256: b8b2cf79b84991169ffb18394fb1199612b1ccdb00c40184eec9f78d02156a2a

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