Malicious PDF — malware analysis report

Static analysis result for SHA-256 4c5e0b4a67e2a519…

MALICIOUS

PDF

16.5 KB Created: 2021-07-05 04:38:09 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 6011efeadc40f94bb9f5dea4028a8342 SHA-1: 39767225c1b89fb8cf3e748acff8b5256919ec61 SHA-256: 4c5e0b4a67e2a519e158bbc75fd4f154fbd29f2baa3a8bb4a95a18b35a131282
74 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains links to external websites that promise game hacks and free currency for popular games. The ML classifier strongly indicates maliciousness, and the embedded URLs are consistent with a phishing or scam lure. No scripts were extracted, but the primary attack pattern is social engineering via deceptive links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9961

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/431946152/roblox-free-skin-game-hack PDF link annotation
    • http://samavetpharm.com/userfiles/files/coin-master-free-spin-daily-bonus_GM406889139.pdfIn PDF document text
    • http://samavetpharm.com/userfiles/files/coin-master_GM406889139.pdfIn PDF document text
    • http://samavetpharm.com/userfiles/files/how-to-hack-a-roblox-account-easy_GM431946152.pdfIn PDF document text
    • http://samavetpharm.com/userfiles/files/how-to-hack-roblox-games_GM431946152.pdfIn PDF document text
    • http://samavetpharm.com/userfiles/files/free-robux-on-ipad_GM431946152.pdfIn PDF document text
    • http://samavetpharm.com/userfiles/files/coin-master-free-spins-hack-but-no-surveys_GM406889139.pdfIn PDF document text
    • http://samavetpharm.com/userfiles/files/free-robux-generator-2021_GM431946152.pdfIn PDF document text
    • http://samavetpharm.com/userfiles/files/_GM479516143.pdfIn PDF document text
    • http://samavetpharm.com/userfiles/files/coin-master-hack_GM406889139.pdfIn PDF document text
    • http://samavetpharm.com/userfiles/files/good-free-minecraft-server-hosting_GM479516143.pdfIn PDF document text
    • http://samavetpharm.com/userfiles/files/free-robux-hack-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://samavetpharm.com/userfiles/files/roblox-hack-app-download_GM431946152.pdfIn PDF document text
    • http://samavetpharm.com/userfiles/files/roblox-promo-codes-generator-no-human-verification_GM431946152.pdfIn PDF document text
    • http://samavetpharm.com/userfiles/files/how-to-get-free-minecraft-skins_GM479516143.pdfIn PDF document text
    • http://samavetpharm.com/userfiles/files/earn-robux-today_GM431946152.pdfIn PDF document text
    • http://samavetpharm.com/userfiles/files/pokemon-go-free-bundle_GM1094591345.pdfIn PDF document text
    • http://samavetpharm.com/userfiles/files/coin-master-gift-hack_GM406889139.pdfIn PDF document text
    • http://samavetpharm.com/userfiles/files/coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://samavetpharm.com/userfiles/files/how-to-get-free-pets-in-adopt-me-roblox_GM431946152.pdfIn PDF document text
    • http://samavetpharm.com/userfiles/files/free-roblox-gift-card-codes-2021-unused_GM431946152.pdfIn PDF document text

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