Malicious PDF — malware analysis report

Static analysis result for SHA-256 475555e574af85ca…

MALICIOUS

PDF

35.4 KB Created: 2021-07-10 00:15:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 527a71a8dcc3a711c7ea4074e05b57a8 SHA-1: 0d000d398716133d28a960a61c81e9d7d91a8afc SHA-256: 475555e574af85caf8eba47e821c319f03820539973a7540e1155311d82bd077
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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-hacks-and-cheats-game-hack PDF link annotation
    • http://autoskola-scp.com/files/hack-de-una-espada-ra-roblox_GM431946152.pdfIn PDF document text
    • http://autoskola-scp.com/files/minecraft-free-exe_GM479516143.pdfIn PDF document text
    • http://autoskola-scp.com/files/roblox-unlimited-robux-hack-no-download_GM431946152.pdfIn PDF document text
    • http://autoskola-scp.com/files/minecraft-free-minecoins_GM479516143.pdfIn PDF document text
    • http://autoskola-scp.com/files/free-spins-coin-master-november-2021_GM406889139.pdfIn PDF document text
    • http://autoskola-scp.com/files/asshurt-roblox-exploit-free_GM431946152.pdfIn PDF document text
    • http://autoskola-scp.com/files/free-roblox-executor_GM431946152.pdfIn PDF document text
    • http://autoskola-scp.com/files/roblox-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://autoskola-scp.com/files/coin-master-free-coins-spins_GM406889139.pdfIn PDF document text
    • http://autoskola-scp.com/files/free-coins-and-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://autoskola-scp.com/files/minecraft-login-free_GM479516143.pdfIn PDF document text
    • http://autoskola-scp.com/files/free-robux-gift-card-codes_GM431946152.pdfIn PDF document text
    • http://autoskola-scp.com/files/google-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://autoskola-scp.com/files/earn-robux-websites_GM431946152.pdfIn PDF document text
    • http://autoskola-scp.com/files/pastebin-free-robux-hack-no-wait_GM431946152.pdfIn PDF document text
    • http://autoskola-scp.com/files/free-tiktok-followers-without-verification_GM835599320.pdfIn PDF document text
    • http://autoskola-scp.com/files/free-robux-no-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://autoskola-scp.com/files/how-to-hack-roblox-on-mobile_GM431946152.pdfIn PDF document text
    • http://autoskola-scp.com/files/how-to-get-minecraft-windows-10-for-free_GM479516143.pdfIn PDF document text
    • http://autoskola-scp.com/files/minecraft-bedrock-free-download-pc_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003419.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3419 23020 bytes
SHA-256: 70a37bb320688adfccacccbba3304b6ab281905abaae1fe1c328f8d488d1f4d1
font_01_sfnt_off000067a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67A8 18344 bytes
SHA-256: 601959c63278e09ff7943eb84b21d4673aa029b67c6276511e759d91a2ac5937

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