Malicious PDF — malware analysis report

Static analysis result for SHA-256 7261e5cb3338e260…

MALICIOUS

PDF

43.6 KB Created: 2021-05-14 12:01:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: b1926a615fa41073ab2a035bf6557840 SHA-1: 1ff3bdc2e561efa287f8d8339bcf426a5d0f2039 SHA-256: 7261e5cb3338e260295a43f5be1d6b209a32f8cc321939eeeb92d37b560eb89b
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a fake CAPTCHA lure to trick users into clicking a link. The embedded link, https://netcdn.xyz/app/406889139/free-role-in-coin-master-game-hack, likely leads to a malicious payload download. The ML classifier also flagged this PDF with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

Heuristics 4

  • Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA
    Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
  • 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/free-role-in-coin-master-game-hack
    • http://elearningmtsn2kotatasikmalaya.com/__statics/gudangsoal/files/roblox-2021-hack_GM431946152.pdf
    • http://elearningmtsn2kotatasikmalaya.com/__statics/gudangsoal/files/coin-master-real-free-spins_GM406889139.pdf
    • http://elearningmtsn2kotatasikmalaya.com/__statics/gudangsoal/files/how-to-change-your-username-in-roblox-for-free_GM431946152.pdf
    • http://elearningmtsn2kotatasikmalaya.com/__statics/gudangsoal/files/coin-master-coins_GM406889139.pdf
    • http://elearningmtsn2kotatasikmalaya.com/__statics/gudangsoal/files/coin-master-hack-mod_GM406889139.pdf
    • http://elearningmtsn2kotatasikmalaya.com/__statics/gudangsoal/files/how-do-i-get-free-spins-in-coin-master_GM406889139.pdf
    • http://elearningmtsn2kotatasikmalaya.com/__statics/gudangsoal/files/coin-master-free-cards-link_GM406889139.pdf
    • http://elearningmtsn2kotatasikmalaya.com/__statics/gudangsoal/files/how-do-you-get-free-robux-2021_GM431946152.pdf
    • http://elearningmtsn2kotatasikmalaya.com/__statics/gudangsoal/files/how-to-get-free-coins-for-coin-master_GM406889139.pdf
    • http://elearningmtsn2kotatasikmalaya.com/__statics/gudangsoal/files/oginject-co_GM406889139.pdf
    • http://elearningmtsn2kotatasikmalaya.com/__statics/gudangsoal/files/how-to-log-out-of-coin-master_GM406889139.pdf
    • http://elearningmtsn2kotatasikmalaya.com/__statics/gudangsoal/files/how-to-get-free-minecraft-alts_GM479516143.pdf
    • http://elearningmtsn2kotatasikmalaya.com/__statics/gudangsoal/files/do-you-get-windows-10-minecraft-for-free-with-java_GM479516143.pdf
    • http://elearningmtsn2kotatasikmalaya.com/__statics/gudangsoal/files/coin-master-fan-page-free-spins_GM406889139.pdf
    • http://elearningmtsn2kotatasikmalaya.com/__statics/gudangsoal/files/free-coin-master-app_GM406889139.pdf
    • http://elearningmtsn2kotatasikmalaya.com/__statics/gudangsoal/files/how-to-hack-a-minecraft-server-and-make-yourself-op_GM479516143.pdf
    • http://elearningmtsn2kotatasikmalaya.com/__statics/gudangsoal/files/legitimate-coin-master-free-spins-apk_GM406889139.pdf
    • http://elearningmtsn2kotatasikmalaya.com/__statics/gudangsoal/files/free-robux-websites-that-actually-work_GM431946152.pdf
    • http://elearningmtsn2kotatasikmalaya.com/__statics/gudangsoal/files/how-to-get-minecraft-for-free-on-mac_GM479516143.pdf
    • http://elearningmtsn2kotatasikmalaya.com/__statics/gudangsoal/files/minecraft-hacks-pc_GM479516143.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004e62.bin
e368b1bb7adbb1ff48cd9c648aaffab234f04c2b7dec3ea860d00c5677525795		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4E62 25812 bytes
font_01_sfnt_off000089a5.bin
0d7a398330f0569861c9be6bc79ebc6a034914cc65f21f48a02d0c09e8a404e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x89A5 17784 bytes

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