Malicious PDF — malware analysis report

Static analysis result for SHA-256 624977bd29bdf14e…

MALICIOUS

PDF

45.4 KB Created: 2021-06-03 21:52:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-05-29
MD5: 3c2d348fba9282ac624f29b47982e9f4 SHA-1: 6445c93b277c551b0c8d420b5c674ab7e82f8185 SHA-256: 624977bd29bdf14ead22782291d101758b9d6a5229441302db87255ccf09e951
160 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

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.online/app/406889139/coin-master-game-hack-version-download-game-hack In PDF document text
    • https://www.bridalguide.com/sites/default/files/files/coin-master-free-spins-today-new_GM406889139.pdfIn PDF document text
    • https://www.bridalguide.com/sites/default/files/files/coin-master-golden-card-hack_GM406889139.pdfIn PDF document text
    • https://www.bridalguide.com/sites/default/files/files/free-2021-robux_GM431946152.pdfIn PDF document text
    • https://www.bridalguide.com/sites/default/files/files/free-robux-app_GM431946152.pdfIn PDF document text
    • https://www.bridalguide.com/sites/default/files/files/claim-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://www.bridalguide.com/sites/default/files/files/roblox-free-robux_GM431946152.pdfIn PDF document text
    • https://www.bridalguide.com/sites/default/files/files/no-human-verification-hack-for-coin-master_GM406889139.pdfIn PDF document text
    • https://www.bridalguide.com/sites/default/files/files/minecraft-windows-10-free-trial_GM479516143.pdfIn PDF document text
    • https://www.bridalguide.com/sites/default/files/files/coin-master-level-4_GM406889139.pdfIn PDF document text
    • https://www.bridalguide.com/sites/default/files/files/can-you-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • https://www.bridalguide.com/sites/default/files/files/coin-master-free-cards_GM406889139.pdfIn PDF document text
    • https://www.bridalguide.com/sites/default/files/files/coin-master-35-2-hack_GM406889139.pdfIn PDF document text
    • https://www.bridalguide.com/sites/default/files/files/coin-master-spin-link-hack_GM406889139.pdfIn PDF document text
    • https://www.bridalguide.com/sites/default/files/files/free-minecraft-thumbnails_GM479516143.pdfIn PDF document text
    • https://www.bridalguide.com/sites/default/files/files/free-robux-generator-codes_GM431946152.pdfIn PDF document text
    • https://www.bridalguide.com/sites/default/files/files/coin-master-free-spins-link-today-haktuts_GM406889139.pdfIn PDF document text
    • https://www.bridalguide.com/sites/default/files/files/free-minecraft-account-list_GM479516143.pdfIn PDF document text
    • https://www.bridalguide.com/sites/default/files/files/how-to-get-free-robux-without-verifying_GM431946152.pdfIn PDF document text
    • https://www.bridalguide.com/sites/default/files/files/free-minecraft-windows-10-with-java_GM479516143.pdfIn PDF document text
    • https://www.bridalguide.com/sites/default/files/files/coin-master-free-spins-2021_GM406889139.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_004_off00005377.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5377 25408 bytes
SHA-256: 4f626af84c25031147d17d02c14ee37bc998afd68f31657f0c35b715a1f17d34
font_01_sfnt_off00008d91.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D91 18692 bytes
SHA-256: bf7747fad6589835e27396875397848ee10c05064cdddbf89c0c768158d1b55c

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