Malicious PDF — malware analysis report

Static analysis result for SHA-256 6a63001a1889a54c…

MALICIOUS

PDF

41.7 KB Created: 2021-05-17 01:35:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: c6276c9b9c0cfbf58c570b7ed693ee1f SHA-1: 463e40da2c395812971cafb2292203f8fc5e64ab SHA-256: 6a63001a1889a54c9547f1efb8c678237a99c696cf64df053a90a99e31847d18
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting 'free generators' or 'hacks' for popular games. The document body and embedded URLs indicate a lure for users seeking in-game currency or cheats. The presence of multiple redirector links and the ML classifier's high confidence score support this assessment.

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-daily-spin-free-game-hack In PDF document text
    • http://nebraskahospitalityhalloffame.com/images/free-robux-no-verification-needed_GM431946152.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/ear-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/coin-master-links-free-spins_GM406889139.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/robux-com-free_GM431946152.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/robux-earner_GM431946152.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/roblox-bux-free_GM431946152.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/coin-spin_GM406889139.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/how-to-get-free-robux-without-verifying-2021_GM431946152.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/roblox-mobile-hack_GM431946152.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/minecraft-windows-10-edition-hacks_GM479516143.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/coin-master-apk-hack-download_GM406889139.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/free-spin-coin-master-game_GM406889139.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/hack-to-send-gold-cards-on-coin-master_GM406889139.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/minecraft-app-store-free_GM479516143.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/instagram-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/free-robux-glitch_GM431946152.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/coin-master-unlimited-spin-link_GM406889139.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/try-minecraft-free_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off0000490a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x490A 24388 bytes
SHA-256: d3b62cb09ee70b5cb3f84ed44babee690cb584a036734983d1ade680984c2dc0
font_01_sfnt_off00008082.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8082 18308 bytes
SHA-256: 213ea0fed5678e19eff32fcc5d46e69a4f1b73f67043b57a178cf12547108d4a

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