Malicious PDF — malware analysis report

Static analysis result for SHA-256 6b951a0f63228ea1…

MALICIOUS

PDF

34.9 KB Created: 2021-06-17 21:46:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: d90af9ac339ef650c72066da41e43348 SHA-1: 15c27606ae57944059af4f6da7d64f64807b0786 SHA-256: 6b951a0f63228ea1f705b06749cd794d92f3a480d8caa85f67f281929485fdf6
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple embedded URLs that redirect to malicious infrastructure, masquerading as game hacks and generators. The primary lure, 'april-1st-stickmasterluke-hack-face-roblox-game-hack', is hosted on a known malicious redirector. The document's structure and embedded links strongly suggest a phishing or scam attempt to redirect users to potentially harmful content.

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.co/app/431946152/april-1st-stickmasterluke-hack-face-roblox-game-hack In PDF document text
    • http://lib.smklabor.sch.id/repository/daily-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/free-to-play-minecraft-servers_GM479516143.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/free-spins-coinmaster_GM406889139.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/how-to-get-free-robux-on-ipad-apple_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/moonactive-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/how-to-get-more-free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/how-to-hack-peoples-roblox-accounts_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/free-robux-inspect-element-2021_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/minecraft-gun-games-free_GM479516143.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/free-robux-may-2021_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/free-robux-no-human-verification-or-survey-or-download-2021_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/coin-master-hack-mod-apk-unlimited-spin-download_GM406889139.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/how-to-install-roblox-jailbreak-hacks_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/microsoft-rewards-robux_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/hack-to-protect-village-on-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/how-to-get-free-minecraft-alts_GM479516143.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/redeem-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/coin-master-2021-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/free-robux-2021-no-verification_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/coin-master-free-spins-haktuts_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
font_00_sfnt_off00003071.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3071 22064 bytes
SHA-256: 353865c241343d584e06689f8062346e64c7879f51ff9088bcfe3b932a997227
font_01_sfnt_off00006159.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6159 19724 bytes
SHA-256: 9198c24fbae1bd75d94e291f46593c971948ff21a733e99ad3c2fa6a19f1e83e

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