Malicious PDF — malware analysis report

Static analysis result for SHA-256 9f93df9b96a3a531…

MALICIOUS

PDF

16.2 KB Created: 2021-06-25 14:57:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 3b9b8e34331e846babcf7cfc2371584a SHA-1: 994774e8243d1d7d2eb5223bae34c28cb107628a SHA-256: 9f93df9b96a3a53119b6c498edc29b6b84936ee36f5f48376dad152688ce7474
94 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to external websites that promise free game currency or hacks, such as 'free robux' and 'coin master'. This is a common lure for phishing or malware distribution. The ML classifier also flagged this PDF as malicious with high confidence. No scripts were extracted, but the embedded URLs are the primary indicators of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9961

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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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.co/app/431946152/free-robux-easy-fast-ligit-game-hack PDF link annotation
    • http://lib.fekon.untad.ac.id/repository/how-do-you-get-free-shirts-on-roblox_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/free-links-to-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/free-robux-codes-no-verification_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/roblox-bandit-simulator-hack_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/robux-free-gift-card-org-hack_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/hack-robux_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/coin-master-daily-spin-free_GM406889139.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/coin-master-hack-2021-ios_GM406889139.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/free-spins-on-coin-master-link_GM406889139.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/coin-master-hack-online-generator_GM406889139.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/how-to-start-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/how-to-hack-people-on-roblox_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/how-to-use-cheat-engine-on-roblox-swordburst2_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/free-roblox-accounts-with-limiteds_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/how-to-make-a-free-server-in-minecraft-java_GM479516143.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/free-robux-for-free_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/free-fast-money-robux_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/free-roblox-accounts-with-passwords-2021_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/how-to-hack-roblox-for-robux-on-phone_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/free-roblox-promo-codes-2021-august_GM431946152.pdfIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

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