Malicious PDF — malware analysis report

Static analysis result for SHA-256 624c3c12a25da965…

MALICIOUS

PDF

47.4 KB Created: 2021-05-13 04:34:07 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-05-29
MD5: ac5f8c82ebb6230046e7e149f60a7f39 SHA-1: de5cf17bfaeec627cb1129dd6ac5805735f5aaf3 SHA-256: 624c3c12a25da9656aa179256c7c4df90b1f139d9f87977ede2fa536a63d47c9
160 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9013

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/431946152/no-scam-free-robux-game-hack In PDF document text
    • http://www.ladillo.com/images/coin-master-free-spins-promo-code_GM406889139.pdfIn PDF document text
    • http://www.ladillo.com/images/coin-master-free-spin-ml_GM406889139.pdfIn PDF document text
    • http://www.ladillo.com/images/rbx-website_GM431946152.pdfIn PDF document text
    • http://www.ladillo.com/images/roblox-robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://www.ladillo.com/images/get-free-cards-for-coin-master_GM406889139.pdfIn PDF document text
    • http://www.ladillo.com/images/coin-master-free-spins-link-2021-april_GM406889139.pdfIn PDF document text
    • http://www.ladillo.com/images/free-robux-no-scam_GM431946152.pdfIn PDF document text
    • http://www.ladillo.com/images/robux-gratis_GM431946152.pdfIn PDF document text
    • http://www.ladillo.com/images/claimrbx-free-robux_GM431946152.pdfIn PDF document text
    • http://www.ladillo.com/images/free-robux-today_GM431946152.pdfIn PDF document text
    • http://www.ladillo.com/images/how-to-hack-into-someones-roblox-account_GM431946152.pdfIn PDF document text
    • http://www.ladillo.com/images/free-minecraft-bedrock-server_GM479516143.pdfIn PDF document text
    • http://www.ladillo.com/images/minecraft-cheat-client_GM479516143.pdfIn PDF document text
    • http://www.ladillo.com/images/easy-way-to-get-robux_GM431946152.pdfIn PDF document text
    • http://www.ladillo.com/images/coin-master-free-coins-and-spins-daily_GM406889139.pdfIn PDF document text
    • http://www.ladillo.com/images/coin-master-pc-hack-download_GM406889139.pdfIn PDF document text
    • http://www.ladillo.com/images/flip-master-coins-hack_GM406889139.pdfIn PDF document text
    • http://www.ladillo.com/images/my-minecraft-account-was-hacked_GM479516143.pdfIn PDF document text
    • http://www.ladillo.com/images/easypoints-gg-roblox_GM431946152.pdfIn PDF document text
    • http://www.ladillo.com/images/coin-master-hack-spins-game-download_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004827.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4827 29468 bytes
SHA-256: f5f235a1f79dce3b976ee641dba3917fb807704b334f5342dc7539658dfc5b9b
font_01_sfnt_off0000891b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x891B 5696 bytes
SHA-256: 450e3ee45915afe13702bf1d587eb8b9ad88a8d2113419ac9f2fd116a828e139
font_02_sfnt_off0000962c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x962C 18500 bytes
SHA-256: 028f53d29b1a624cb68bae5e747b7c177b5cbf8f783d4c53e2642c12f49f399d