Malicious PDF — malware analysis report

Static analysis result for SHA-256 8f94af05fddb2522…

MALICIOUS

PDF

39.3 KB Created: 2021-05-20 07:03:09 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: df285198dd7000ebe5363d32fe9cfb3c SHA-1: 1b3de44b40167f983ff1cb0f0afdb862f804c111 SHA-256: 8f94af05fddb2522cbece2bec087a90a620a33ea96bc97497987d9999c2aa0c8
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains multiple links to websites offering game hacks and cheats, such as 'Coin Master Hack Here'. These links, including the primary one to 'netcdn.xyz', are flagged as malicious redirectors. The document body and embedded URLs suggest a lure for users seeking in-game advantages, which is a common tactic for distributing malware or conducting phishing. No scripts were extracted, but the PDF structure and embedded links strongly indicate a malicious redirection workflow.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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-hack-here-game-hack In PDF document text
    • http://jdlrelocation.com/images/will-minecraft-dungeons-be-free_GM479516143.pdfIn PDF document text
    • http://jdlrelocation.com/images/free-robux-gen_GM431946152.pdfIn PDF document text
    • http://jdlrelocation.com/images/hack-coin-master-android-game_GM406889139.pdfIn PDF document text
    • http://jdlrelocation.com/images/minecraft-apk-android-free_GM479516143.pdfIn PDF document text
    • http://jdlrelocation.com/images/how-to-hack-a-roblox-account-easy_GM431946152.pdfIn PDF document text
    • http://jdlrelocation.com/images/best-free-minecraft-server-hosting-reddit_GM479516143.pdfIn PDF document text
    • http://jdlrelocation.com/images/coin-master-free-spins-link-haktuts_GM406889139.pdfIn PDF document text
    • http://jdlrelocation.com/images/coin-master-hack-mod_GM406889139.pdfIn PDF document text
    • http://jdlrelocation.com/images/free-robux-legit_GM431946152.pdfIn PDF document text
    • http://jdlrelocation.com/images/www-rbx-com_GM431946152.pdfIn PDF document text
    • http://jdlrelocation.com/images/haktuts-coin-master_GM406889139.pdfIn PDF document text
    • http://jdlrelocation.com/images/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://jdlrelocation.com/images/free-roblox-accounts-with-robux-that-work-not-banned-2021_GM431946152.pdfIn PDF document text
    • http://jdlrelocation.com/images/free-foxy-food-coin-master_GM406889139.pdfIn PDF document text
    • http://jdlrelocation.com/images/does-coin-master-hack-work_GM406889139.pdfIn PDF document text
    • http://jdlrelocation.com/images/coin-master-apk-hack-mod-download_GM406889139.pdfIn PDF document text
    • http://jdlrelocation.com/images/hacks-master-coin_GM406889139.pdfIn PDF document text
    • http://jdlrelocation.com/images/roblox-arsenal-hack-script-pastebin_GM431946152.pdfIn PDF document text
    • http://jdlrelocation.com/images/how-to-get-free-robux-as-a-kid_GM431946152.pdfIn PDF document text
    • http://jdlrelocation.com/images/master-hack-coin_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_off000043ad.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x43AD 23412 bytes
SHA-256: d9ce9bef12a2046eb85f459204cfea5ba7eb37ad3c9ef4fce8b175cb05fca5db
font_01_sfnt_off000078b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78B4 17716 bytes
SHA-256: c15a8689411d8cca9ab0759ab4c496fe9b4353d676dd738e300719e9588112ed

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