Malicious PDF — malware analysis report

Static analysis result for SHA-256 9d53cd3a14165c9d…

MALICIOUS

PDF

5.3 KB Created: 2021-07-09 08:17:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 414b3264ef408e8cbbeadaf7fbca90f5 SHA-1: fc5c89dc116761f065a31d8e989495c1f3f1893d SHA-256: 9d53cd3a14165c9da20a6d855daac5671010dfd2ccda82261ef30ac2b4928031
74 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a high-confidence heuristic indicating it links to a game hack lure. The embedded URL, http://netcdn.tw/app/406889139/coin-master-free-cards-link-2021-game-hack, is likely intended to redirect users to a malicious site for phishing or malware distribution. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to exploit user interest in game cheats to compromise their systems.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9272

Heuristics 3

  • 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.
  • 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-free-cards-link-2021-game-hack PDF link annotation
    • https://cleansui.com.tw/image/data/files/how-to-hack-coin-master-game-2021_GM406889139.pdfIn PDF document text
    • http://cleansui.com.tw/image/data/files/como-hackear-coin-master-2021-espaol_GM406889139.pdfIn PDF document text
    • http://cleansui.com.tw/image/data/files/free-roblox-exploits_GM431946152.pdfIn PDF document text
    • http://cleansui.com.tw/image/data/files/www-claim-gg-to-earn-free-robux_GM431946152.pdfIn PDF document text
    • http://cleansui.com.tw/image/data/files/rbx-land-free-robux_GM431946152.pdfIn PDF document text
    • http://cleansui.com.tw/image/data/files/free-robux-without-survey_GM431946152.pdfIn PDF document text
    • https://cleansui.com.tw/image/data/files/play-roblox-for-free-on-google_GM431946152.pdfIn PDF document text
    • https://cleansui.com.tw/image/data/files/coin-master-hack-ios-12_GM406889139.pdfIn PDF document text
    • https://cleansui.com.tw/image/data/files/break-block-roblox-script-hack_GM431946152.pdfIn PDF document text
    • http://cleansui.com.tw/image/data/files/how-to-hack-someone-on-roblox_GM431946152.pdfIn PDF document text
    • http://cleansui.com.tw/image/data/files/link-for-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://cleansui.com.tw/image/data/files/minecraft-hacks-list_GM479516143.pdfIn PDF document text
    • https://cleansui.com.tw/image/data/files/free-roblox-names_GM431946152.pdfIn PDF document text
    • http://cleansui.com.tw/image/data/files/roblox-joined-hack-script_GM431946152.pdfIn PDF document text
    • http://cleansui.com.tw/image/data/files/get-free-minecraft-account_GM479516143.pdfIn PDF document text
    • https://cleansui.com.tw/image/data/files/free-roblox-bot-accounts_GM431946152.pdfIn PDF document text
    • http://cleansui.com.tw/image/data/files/free-robux-co_GM431946152.pdfIn PDF document text

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