Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f5c2639afcf296e…

MALICIOUS

PDF

18.9 KB Created: 2021-06-03 14:25:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 5bd108032cd8a1e91d691d28b37ba2b4 SHA-1: 3060fc1781adf955d62812ecfb07425635741466 SHA-256: 6f5c2639afcf296e7ec1a9b7f120ece39922dcfddb708a7c8e4d1cc82d5fa841
114 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a high-confidence heuristic indicating it links to a 'free generator / game hack' lure. The document body and extracted URLs reinforce this, pointing to sites offering 'Coin Master Free Link Spin' and similar game-related cheats. The presence of a password-protected archive lure suggests the PDF is intended to facilitate the download of a secondary malicious payload. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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 https://netcdn.online/app/406889139/coin-master-free-link-spin-game-hack PDF link annotation
    • http://katalog.gemalibrary.net/repository/send-me-500-2021-spins_GM406889139.pdfIn PDF document text
    • http://katalog.gemalibrary.net/repository/free-coin-master-game_GM406889139.pdfIn PDF document text
    • http://katalog.gemalibrary.net/repository/can-u-get-free-robux_GM431946152.pdfIn PDF document text
    • http://katalog.gemalibrary.net/repository/how-to-get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://katalog.gemalibrary.net/repository/free-roblox-passwords_GM431946152.pdfIn PDF document text
    • http://katalog.gemalibrary.net/repository/moon-active-games_GM406889139.pdfIn PDF document text
    • http://katalog.gemalibrary.net/repository/get-free-spins-coin-master-october-2021_GM406889139.pdfIn PDF document text
    • http://katalog.gemalibrary.net/repository/dominus-roblox-free_GM431946152.pdfIn PDF document text
    • http://katalog.gemalibrary.net/repository/free-spins-and-coins-coin-master_GM406889139.pdfIn PDF document text
    • http://katalog.gemalibrary.net/repository/coin-master-free-spins-and-coins-daily_GM406889139.pdfIn PDF document text
    • http://katalog.gemalibrary.net/repository/how-to-get-free-robux-without-verifying-2021_GM431946152.pdfIn PDF document text
    • http://katalog.gemalibrary.net/repository/best-minecraft-hacked-client-2021_GM479516143.pdfIn PDF document text
    • http://katalog.gemalibrary.net/repository/coin-master-32-hack-apk_GM406889139.pdfIn PDF document text
    • http://katalog.gemalibrary.net/repository/download-minecraft-free-hiapphere_GM479516143.pdfIn PDF document text
    • http://katalog.gemalibrary.net/repository/minecraft-gun-mod-download-free_GM479516143.pdfIn PDF document text
    • http://katalog.gemalibrary.net/repository/coin-master-gift-link-hack_GM406889139.pdfIn PDF document text
    • http://katalog.gemalibrary.net/repository/free-coin-master-spins-daily_GM406889139.pdfIn PDF document text
    • http://katalog.gemalibrary.net/repository/coin-master-guide-to-free-spins-and-rewards_GM406889139.pdfIn PDF document text
    • http://katalog.gemalibrary.net/repository/coin-master-hack-mod-apk-android-1_GM406889139.pdfIn PDF document text
    • http://katalog.gemalibrary.net/repository/free-minecraft-videos_GM479516143.pdfIn PDF document text

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