Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce82945dc9a696df…

MALICIOUS

PDF

36.1 KB Created: 2021-07-06 05:39:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 319afa437f93cea2f2d07ca8d64885a5 SHA-1: 212789858cacc7181bb12663182972c9c1012f05 SHA-256: ce82945dc9a696dfe2d31eaf38bf53c679bb2da9286735a95af3469f676d6289
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains links to a known malicious redirector, disguised as a game hack generator. The document body and embedded URLs suggest a lure for free in-game currency or hacks, likely leading to further malicious content or malware. No scripts were extracted from this sample, but the presence of malicious links is a strong indicator of a phishing or redirection attack.

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.tw/app/406889139/freespinandcoin-game-hack In PDF document text
    • http://en.gzyuquan.com/Public/upload/editorfiles/hack-roblox-traspasar-paredes_GM431946152.pdfIn PDF document text
    • http://en.gzyuquan.com/Public/upload/editorfiles/coin-master-free-coins-and-spins-2021_GM406889139.pdfIn PDF document text
    • http://en.gzyuquan.com/Public/upload/editorfiles/free-spins-for-coin-master-app_GM406889139.pdfIn PDF document text
    • http://en.gzyuquan.com/Public/upload/editorfiles/coin-master-links-2021_GM406889139.pdfIn PDF document text
    • http://en.gzyuquan.com/Public/upload/editorfiles/como-tener-robux-gratis-sin-hacks-ni-servicios_GM431946152.pdfIn PDF document text
    • http://en.gzyuquan.com/Public/upload/editorfiles/roblox-mobile-hack_GM431946152.pdfIn PDF document text
    • http://en.gzyuquan.com/Public/upload/editorfiles/roblox-robux-hack-2021-xbox-one_GM431946152.pdfIn PDF document text
    • http://en.gzyuquan.com/Public/upload/editorfiles/google-how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://en.gzyuquan.com/Public/upload/editorfiles/free-coins-for-coin-master-blogger_GM406889139.pdfIn PDF document text
    • http://en.gzyuquan.com/Public/upload/editorfiles/auto-clicker-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://en.gzyuquan.com/Public/upload/editorfiles/how-to-get-verified-on-tiktok-for-free_GM835599320.pdfIn PDF document text
    • http://en.gzyuquan.com/Public/upload/editorfiles/earn-free-robux-today_GM431946152.pdfIn PDF document text
    • http://en.gzyuquan.com/Public/upload/editorfiles/coin-master-hack-quora_GM406889139.pdfIn PDF document text
    • http://en.gzyuquan.com/Public/upload/editorfiles/op-rewards-free-robux_GM431946152.pdfIn PDF document text
    • http://en.gzyuquan.com/Public/upload/editorfiles/coin-master-apk-hack-mod-download_GM406889139.pdfIn PDF document text
    • http://en.gzyuquan.com/Public/upload/editorfiles/free-spins-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://en.gzyuquan.com/Public/upload/editorfiles/roblox-studio-free-draw_GM431946152.pdfIn PDF document text
    • http://en.gzyuquan.com/Public/upload/editorfiles/roblox-jailbreak-how-to-get-a-free-bugatti_GM431946152.pdfIn PDF document text
    • http://en.gzyuquan.com/Public/upload/editorfiles/coin-master-root-hack_GM406889139.pdfIn PDF document text
    • http://en.gzyuquan.com/Public/upload/editorfiles/free-roblox-hack_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
stream_002_off00003379.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3379 24368 bytes
SHA-256: 3e48924f4365cb2a085c64fe338b03cfbf3aa01cc45827686de9af0bbc2a543c
font_01_sfnt_off00006a95.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A95 18244 bytes
SHA-256: 19494bed36003fadbe02431e250c62ef1698fa422030438aed600d934fd3a9e1

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