Malicious PDF — malware analysis report

Static analysis result for SHA-256 1b64c766cb720655…

MALICIOUS

PDF

20.0 KB Created: 2021-06-29 23:33:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 0a8fa8d04b1ec49e9def7491af1928c6 SHA-1: afd481210bb8d6941ff16fc95626e674064f6423 SHA-256: 1b64c766cb720655720cb17df03882927b67e41a65c1f13aeaf3ea97c91203a6
74 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple embedded URLs, with a primary lure related to 'free game hacks' for Roblox. The ML classifier strongly indicates maliciousness, and the heuristic firings confirm the use of a game hack lure to redirect users to external sites. While no scripts were explicitly extracted, the nature of the embedded links suggests a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9972

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.co/app/431946152/scooter-roblox-free-game-hack PDF link annotation
    • http://lib.vipklh.ru/repository/play-for-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/roblox-ban_GM431946152.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/free-google-play-promo-codes-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/hack-an-account-on-roblox_GM431946152.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/cheat-engine-patched-roblox_GM431946152.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/free-clothes-on-roblox-id_GM431946152.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/cmaster-club-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/fly-hack-roblox-2021_GM431946152.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/how-to-be-a-jailbreak-hacker-roblox_GM431946152.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/show-me-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/jailbreak-roblox-cheat-may-20-2021_GM431946152.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/get-free-robux-ad_GM431946152.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/best-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/boost9-com-roblox-hack_GM431946152.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/how-to-get-free-robux-2021-july-easy_GM431946152.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/did-roblox-get-hacked-in-2021_GM431946152.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/pokemon-go-free-battle-pass_GM1094591345.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/coin-master-daily-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/how-to-get-free-robux-for-games_GM431946152.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/password-free-roblox-accounts_GM431946152.pdfIn PDF document text

Related samples 7

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

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