Malicious PDF — malware analysis report

Static analysis result for SHA-256 772358253ff4d305…

MALICIOUS

PDF

35.1 KB Created: 2021-06-25 20:54:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 714dc2a8806d5efd1856921e03ed07d0 SHA-1: 594766fee6cbc58cead867191c189b55132f2ff3 SHA-256: 772358253ff4d305945e32865787bb36cdf6235b004949d8ea2be1836b48e9c1
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous links and references to game hacks and free in-game currency, specifically targeting popular games like Roblox and Coin Master. The primary URL, http://netcdn.co/app/431946152/roblox-hack-no-survey-no-download-no-human-verification-game-hack, is identified as a malicious redirector, indicating the document's purpose is to lead users to potentially harmful sites. No scripts were extracted, but the embedded URLs and the lure content strongly suggest a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9824

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/roblox-hack-no-survey-no-download-no-human-verification-game-hack In PDF document text
    • https://e-learning-man1polman.com/__statics/gudangsoal/files/free-roblox-accounts-with-robux-2021_GM431946152.pdfIn PDF document text
    • https://e-learning-man1polman.com/__statics/gudangsoal/files/best-free-spins-link-coin-master_GM406889139.pdfIn PDF document text
    • https://e-learning-man1polman.com/__statics/gudangsoal/files/roblox-a-free-model-makes-me-teleport-to-another-game_GM431946152.pdfIn PDF document text
    • https://e-learning-man1polman.com/__statics/gudangsoal/files/do-you-get-windows-10-minecraft-for-free-with-java_GM479516143.pdfIn PDF document text
    • https://e-learning-man1polman.com/__statics/gudangsoal/files/roblox-hack-script-executor_GM431946152.pdfIn PDF document text
    • https://e-learning-man1polman.com/__statics/gudangsoal/files/free-robux-no-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • https://e-learning-man1polman.com/__statics/gudangsoal/files/roblox-hacks-and-cheats_GM431946152.pdfIn PDF document text
    • https://e-learning-man1polman.com/__statics/gudangsoal/files/coin-master-free-spins-and-coins-today_GM406889139.pdfIn PDF document text
    • https://e-learning-man1polman.com/__statics/gudangsoal/files/hack-robux_GM431946152.pdfIn PDF document text
    • https://e-learning-man1polman.com/__statics/gudangsoal/files/coin-master-free-spins-and-coins-today-gift-reward_GM406889139.pdfIn PDF document text
    • https://e-learning-man1polman.com/__statics/gudangsoal/files/free-robux-game-code_GM431946152.pdfIn PDF document text
    • https://e-learning-man1polman.com/__statics/gudangsoal/files/coin-master-free-spins--coins-2021_GM406889139.pdfIn PDF document text
    • https://e-learning-man1polman.com/__statics/gudangsoal/files/best-robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
    • https://e-learning-man1polman.com/__statics/gudangsoal/files/best-roblox-hacks_GM431946152.pdfIn PDF document text
    • https://e-learning-man1polman.com/__statics/gudangsoal/files/how-to-play-roblox-for-free_GM431946152.pdfIn PDF document text
    • https://e-learning-man1polman.com/__statics/gudangsoal/files/hack-crack-for-coin-master-currency_GM406889139.pdfIn PDF document text
    • https://e-learning-man1polman.com/__statics/gudangsoal/files/r5oblox-how-to-get-robux-useing-cheat-engine_GM431946152.pdfIn PDF document text
    • https://e-learning-man1polman.com/__statics/gudangsoal/files/minecraft-pe-hack-client_GM479516143.pdfIn PDF document text
    • https://e-learning-man1polman.com/__statics/gudangsoal/files/i-need-more-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://e-learning-man1polman.com/__statics/gudangsoal/files/roblox-help-free-robux_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_off00002e75.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E75 22560 bytes
SHA-256: f798928dfa5e98f0a194283854bcd9dae74de6530dfcbcf923486a8d487bf440
font_01_sfnt_off000060fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60FD 20216 bytes
SHA-256: cd793c71883ccd997e4b66e619ae3b34f705b1501bec0cd095588f0a2e563b87

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