Malicious PDF — malware analysis report

Static analysis result for SHA-256 80a239a4a9f4045b…

MALICIOUS

PDF

34.4 KB Created: 2021-06-18 15:48:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: a5feef4fbcad678d225e4ccc4652dc3c SHA-1: 6de4dee8a15655533e27a63966dee5b21c1eceb9 SHA-256: 80a239a4a9f4045b2395ff08d56e5a6829100aded8d2af91959ce86936ca64b2
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs that are part of a lure for game hacks and free virtual currency, specifically targeting popular games like Roblox and Coin Master. The heuristic firings confirm this is a malicious PDF designed to redirect users to external sites, likely for phishing or malware distribution. No scripts were extracted, but the embedded URLs are the primary indicators of malicious intent.

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.co/app/431946152/free-robux-by-roblox-astebin-game-hack PDF link annotation
    • http://mou16-murmansk.ru/images/hack-tool-roblox-pokemon-adventures_GM431946152.pdfIn PDF document text
    • http://mou16-murmansk.ru/images/how-to-hack-roblox-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://mou16-murmansk.ru/images/more-robux_GM431946152.pdfIn PDF document text
    • http://mou16-murmansk.ru/images/coin-master-coins-free_GM406889139.pdfIn PDF document text
    • http://mou16-murmansk.ru/images/free-minecraft-servers-to-join_GM479516143.pdfIn PDF document text
    • http://mou16-murmansk.ru/images/commands-roblox-hack_GM431946152.pdfIn PDF document text
    • http://mou16-murmansk.ru/images/coin-master-free-gold-cards-link-2021_GM406889139.pdfIn PDF document text
    • http://mou16-murmansk.ru/images/roblox-kill-hack-download_GM431946152.pdfIn PDF document text
    • http://mou16-murmansk.ru/images/free-robux-promo-codes_GM431946152.pdfIn PDF document text
    • http://mou16-murmansk.ru/images/roblox-legendary-football-vip-server-free-2021_GM431946152.pdfIn PDF document text
    • http://mou16-murmansk.ru/images/coin-master-daily-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://mou16-murmansk.ru/images/coin-master-spin-free_GM406889139.pdfIn PDF document text
    • http://mou16-murmansk.ru/images/how-to-host-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • http://mou16-murmansk.ru/images/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://mou16-murmansk.ru/images/free-coin-master-hacks-no-verification-or-survey_GM406889139.pdfIn PDF document text
    • http://mou16-murmansk.ru/images/roblox-help-free-robux_GM431946152.pdfIn PDF document text
    • http://mou16-murmansk.ru/images/tiktok-fans-free_GM835599320.pdfIn PDF document text
    • http://mou16-murmansk.ru/images/how-to-get-free-robux-on-mobile_GM431946152.pdfIn PDF document text
    • http://mou16-murmansk.ru/images/free-unlimited-robux_GM431946152.pdfIn PDF document text
    • http://mou16-murmansk.ru/images/create-minecraft-server-free_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002e8b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E8B 22756 bytes
SHA-256: 704fb4c2715acb2174f6751661f5bc33f9d45c808ff8815ff08e3ebd0cfc0e4e
font_01_sfnt_off0000615f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x615F 19008 bytes
SHA-256: 66c54900fbe82ddf5cb46fe093d719dccd00964e228973fa722bb600ab02b5cb

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