Malicious PDF — malware analysis report

Static analysis result for SHA-256 efd47b287f8f9860…

MALICIOUS

PDF

43.2 KB Created: 2021-06-03 06:24:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 0614fdb94c1f75394b96bce82bc5f50c SHA-1: a13b3a5012559013801085c5cb970b9c88609e96 SHA-256: efd47b287f8f9860540c6ae5e05b8a663a01daad8f00013c93725359e59c924e
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains multiple links to known malicious redirectors, specifically advertising 'free generator / game hack' lures. These links likely lead to further malicious content or scams. The document body and embedded URLs reinforce this finding, indicating a phishing or scam attempt designed to trick users into visiting compromised sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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-free-spins-and-coins-group-game-hack In PDF document text
    • http://slim.sisminkada.net/repository/free-spin-link-for-coin-master_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/how-to-get-free-robux-on-phone_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/spin-coin-master-free_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/how-to-get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/robux-hack_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/www-robux_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/wwwhaktutsin-2021-08-coinmasterfreespinandcoinlinkhtml-m-1_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/minecraft-mods-download-free_GM479516143.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/gameoffice-net-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/coin-master-free-spins-gratis_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/easy-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/how-to-hack-coin-master-using-es-file_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/coin-master-village-cost_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/roblox-system_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/cm-spins_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/how-to-get-free-robux-without-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/how-to-get-free-robux-codes_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/free-minecraft-windows-10-account_GM479516143.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/coin-master-coins-free_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/minecraft-java-edition-code-free_GM479516143.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_off00004ebb.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4EBB 24372 bytes
SHA-256: 4fc97baebe4d5993c31c53e7522a3a0ddbc279730a14dc2ad5edeeae963c501b
font_01_sfnt_off00008688.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8688 18200 bytes
SHA-256: 54fd5b3cea3424e44b8aa3e0b36c372e6f6c7ec27c44e60f8f157f6f0e83aa54

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