Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c82a47873122ebb…

MALICIOUS

PDF

41.3 KB Created: 2021-05-13 11:52:07 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: f06cec6421b3b594e5f13a6d54aa560e SHA-1: 302ef0f08d1ca0b7e9ef107234cc008db995555c SHA-256: 0c82a47873122ebb40dc830aa4f4d76e99755a15c9374b9404ade8019bbac30f
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for game hacks and generators, directing users to a malicious URL. The ML classifier strongly flagged this PDF as malicious, and multiple heuristics indicate a redirection to potentially harmful content. While no scripts were directly extracted, the embedded URLs and the nature of the lure suggest a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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 https://netcdn.xyz/app/406889139/haktuts-coin-master-free-daily-spins-game-hack PDF link annotation
    • http://horsa18.ru/images/how-to-hack-peoples-roblox-accounts_GM431946152.pdfIn PDF document text
    • http://horsa18.ru/images/blox-land-free-robux_GM431946152.pdfIn PDF document text
    • http://horsa18.ru/images/free-robux-com-roblox_GM431946152.pdfIn PDF document text
    • http://horsa18.ru/images/clean-master-coins-hack_GM406889139.pdfIn PDF document text
    • http://horsa18.ru/images/roblox-accounts-for-sale-free_GM431946152.pdfIn PDF document text
    • http://horsa18.ru/images/roblox-hack-me-robux_GM431946152.pdfIn PDF document text
    • http://horsa18.ru/images/free-coin-master-cards_GM406889139.pdfIn PDF document text
    • http://horsa18.ru/images/minecraft-windows-10-hacks_GM479516143.pdfIn PDF document text
    • http://horsa18.ru/images/easy-ways-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://horsa18.ru/images/mcpe-master-unlimited-coins-free-download_GM406889139.pdfIn PDF document text
    • http://horsa18.ru/images/roblox-games-com-free_GM431946152.pdfIn PDF document text
    • http://horsa18.ru/images/free-robux-no-downloading-apps_GM431946152.pdfIn PDF document text
    • http://horsa18.ru/images/free-robux-kid-friendly_GM431946152.pdfIn PDF document text
    • http://horsa18.ru/images/free-coin-master-generator_GM406889139.pdfIn PDF document text
    • http://horsa18.ru/images/coin-master-hack-apk-2021-download_GM406889139.pdfIn PDF document text
    • http://horsa18.ru/images/codes-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://horsa18.ru/images/minecraft-redeem-code-free_GM479516143.pdfIn PDF document text
    • http://horsa18.ru/images/how-to-get-free-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://horsa18.ru/images/rape-simulator_GM431946152.pdfIn PDF document text
    • http://horsa18.ru/images/how-to-hack-roblox-for-robux_GM431946152.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
stream_003_off000046d5.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x46D5 24140 bytes
SHA-256: 8e212848c8ca01a4c3dccf36ee7ec8f2d9755b3a92111c60660164e38f3802a0
font_01_sfnt_off00007df9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7DF9 18620 bytes
SHA-256: ded7de44f7a870837d4ef416985ae0b9ef78dce3540f45b1558d033e63b05ca7