Malicious PDF — malware analysis report

Static analysis result for SHA-256 624ed01f51b520d4…

MALICIOUS

PDF

34.0 KB Created: 2021-06-26 05:12:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-05-28
MD5: 01924352414777a442bbb72f4ea271b2 SHA-1: f49e861da3ef7f05ee8968a4697de52fa74ed2a9 SHA-256: 624ed01f51b520d466f2423ef793b6b2771a80be9863e4e9eeaf7f7b375c4ff1
160 Risk Score

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/406889139/hack-coin-master-apk-33-game-hack In PDF document text
    • http://server1.elearningmansatuokit.sch.id/__statics/gudangsoal/files/how-to-o-get-free-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://server1.elearningmansatuokit.sch.id/__statics/gudangsoal/files/coin-master-coins_GM406889139.pdfIn PDF document text
    • http://server1.elearningmansatuokit.sch.id/__statics/gudangsoal/files/free-robux-code-thai_GM431946152.pdfIn PDF document text
    • http://server1.elearningmansatuokit.sch.id/__statics/gudangsoal/files/hack-coin-master-apk-358_GM406889139.pdfIn PDF document text
    • http://server1.elearningmansatuokit.sch.id/__statics/gudangsoal/files/coin-master-hack-app-2021_GM406889139.pdfIn PDF document text
    • http://server1.elearningmansatuokit.sch.id/__statics/gudangsoal/files/coin-drop-master-free_GM406889139.pdfIn PDF document text
    • http://server1.elearningmansatuokit.sch.id/__statics/gudangsoal/files/how-to-get-roebucks-on-roblox_GM431946152.pdfIn PDF document text
    • http://server1.elearningmansatuokit.sch.id/__statics/gudangsoal/files/minecraft-pe-apk_GM479516143.pdfIn PDF document text
    • http://server1.elearningmansatuokit.sch.id/__statics/gudangsoal/files/free-robux-and-tix-app_GM431946152.pdfIn PDF document text
    • http://server1.elearningmansatuokit.sch.id/__statics/gudangsoal/files/free-robux-no-generator_GM431946152.pdfIn PDF document text
    • http://server1.elearningmansatuokit.sch.id/__statics/gudangsoal/files/earn-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://server1.elearningmansatuokit.sch.id/__statics/gudangsoal/files/play-minecraft-for-free-on-pc_GM479516143.pdfIn PDF document text
    • http://server1.elearningmansatuokit.sch.id/__statics/gudangsoal/files/haktutsin-2021-09-coinmaster50freespinandcoinlinkhtml-m-1_GM406889139.pdfIn PDF document text
    • http://server1.elearningmansatuokit.sch.id/__statics/gudangsoal/files/get-free-robux-info_GM431946152.pdfIn PDF document text
    • http://server1.elearningmansatuokit.sch.id/__statics/gudangsoal/files/minecraft-free-download-2021_GM479516143.pdfIn PDF document text
    • http://server1.elearningmansatuokit.sch.id/__statics/gudangsoal/files/how-to-have-free-shirts-bc-roblox_GM431946152.pdfIn PDF document text
    • http://server1.elearningmansatuokit.sch.id/__statics/gudangsoal/files/download-coin-master-apk-hack_GM406889139.pdfIn PDF document text
    • http://server1.elearningmansatuokit.sch.id/__statics/gudangsoal/files/free-robux-gold_GM431946152.pdfIn PDF document text
    • http://server1.elearningmansatuokit.sch.id/__statics/gudangsoal/files/coin-master-hack-tool-v1-9_GM406889139.pdfIn PDF document text
    • http://server1.elearningmansatuokit.sch.id/__statics/gudangsoal/files/can-i-get-minecraft-windows-10-for-free_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn extracted file (font_00_sfnt_off00003145.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003145.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3145 22052 bytes
SHA-256: 0af8bdd28117687ee51c8724f30b64bda0aaa967a09af85c494cd527a9b3e387
font_01_sfnt_off000061f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61F5 18352 bytes
SHA-256: c65772cd79ad6de597fc413f9040d6d1c9c7792bb61b50622daa601e9a3f6ed0