Malicious PDF — malware analysis report

Static analysis result for SHA-256 b4774132397ac28c…

MALICIOUS

PDF

34.3 KB Created: 2021-07-05 12:52:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: e4d57a4aff8a54445f5e29593d019494 SHA-1: a99bfecc90c3e81f32a92d3a81c36a76207b04e2 SHA-256: b4774132397ac28cd68c5d47aa89f5baf1e127d845221441f14aa80e03441500
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a high-severity heuristic indicating it links to a 'game hack' lure, specifically pointing to a URL designed to trick users into downloading potentially malicious content. The document body and numerous extracted URLs reinforce this lure, suggesting the primary goal is to redirect users to a site offering fake game hacks. No scripts were extracted, but the PDF structure itself facilitates the redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high 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.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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.tw/app/406889139/coin-master-hack-app-game-hack PDF link annotation
    • http://lib.pps.uin-suka.ac.id/repository/free-spins-coin-master-2021-no-verification_GM406889139.pdfIn PDF document text
    • http://lib.pps.uin-suka.ac.id/repository/free-spins-on-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://lib.pps.uin-suka.ac.id/repository/how-to-get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://lib.pps.uin-suka.ac.id/repository/free-coin-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.pps.uin-suka.ac.id/repository/coin-mster-free_GM406889139.pdfIn PDF document text
    • http://lib.pps.uin-suka.ac.id/repository/coin-master-32-android-mod-hack-apk-download_GM406889139.pdfIn PDF document text
    • http://lib.pps.uin-suka.ac.id/repository/how-to-get-free-robux-on-pc_GM431946152.pdfIn PDF document text
    • http://lib.pps.uin-suka.ac.id/repository/todays-free-spin-and-coin-links_GM406889139.pdfIn PDF document text
    • http://lib.pps.uin-suka.ac.id/repository/coin-master-200-spin-link_GM406889139.pdfIn PDF document text
    • http://lib.pps.uin-suka.ac.id/repository/download-minecraft-bedrock_GM479516143.pdfIn PDF document text
    • http://lib.pps.uin-suka.ac.id/repository/how-to-setup-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • http://lib.pps.uin-suka.ac.id/repository/coin-master-free-spins-link-blogspot-today_GM406889139.pdfIn PDF document text
    • http://lib.pps.uin-suka.ac.id/repository/hackear-juego-coin-master-espaol_GM406889139.pdfIn PDF document text
    • http://lib.pps.uin-suka.ac.id/repository/minecraft-windows-10-free-with-java_GM479516143.pdfIn PDF document text
    • http://lib.pps.uin-suka.ac.id/repository/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://lib.pps.uin-suka.ac.id/repository/hack-coin-master-android_GM406889139.pdfIn PDF document text
    • http://lib.pps.uin-suka.ac.id/repository/coin-master-free-spins-link-download-for-iphone_GM406889139.pdfIn PDF document text
    • http://lib.pps.uin-suka.ac.id/repository/coin-master-gold-cards-free_GM406889139.pdfIn PDF document text
    • http://lib.pps.uin-suka.ac.id/repository/free-coin-master-coins_GM406889139.pdfIn PDF document text
    • http://lib.pps.uin-suka.ac.id/repository/coin-master-game-free_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
font_00_sfnt_off0000305d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x305D 22844 bytes
SHA-256: 47d2845b8ad433de3c3a76e849ff17f22ec6579ad6676f877f5ac392bb844b71
font_01_sfnt_off00006374.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6374 18180 bytes
SHA-256: 5b637a8a036eab97bffff91a515cae84fc40b6bddd589e778cc2e69a12b03167

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