Malicious PDF — malware analysis report

Static analysis result for SHA-256 02af4d23aee3aacf…

MALICIOUS

PDF

47.0 KB Created: 2021-05-17 20:03:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: adad93a55c26f1bbb385df6026e1d7f9 SHA-1: d6991a01290c7a6e10e79e5937afc4a42809c205 SHA-256: 02af4d23aee3aacfa31c800d46d11aa394bc7affd9613fe2c829196ad347925e
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 User Execution: Malicious File

The document presents itself as a "Coin Master Unlimited Spin And Coin Hack" and contains a fake CAPTCHA or human verification prompt to trick the user into downloading a malicious file. Multiple URLs are embedded, pointing to potential download locations for the "hack tool". The ML classifier also flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8948

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/coin-master-unlimited-spin-and-coin-hack-game-hack
    • http://jerering.com/images/coin-master-hack-tool-no-human-verification_GM406889139.pdf
    • http://jerering.com/images/coin-master-free-spins-whatsapp-link_GM406889139.pdf
    • http://jerering.com/images/free-coins-coin-master_GM406889139.pdf
    • http://jerering.com/images/coin-master-free-daily-spins-today_GM406889139.pdf
    • http://jerering.com/images/codes-to-get-free-robux_GM431946152.pdf
    • http://jerering.com/images/hack-coin-master-no-survey_GM406889139.pdf
    • http://jerering.com/images/coin-master-free-spin-and-coin_GM406889139.pdf
    • http://jerering.com/images/how-do-u-get-free-robux_GM431946152.pdf
    • http://jerering.com/images/how-to-hack-roblox-to-get-free-robux_GM431946152.pdf
    • http://jerering.com/images/lucky-patcher-coin-master-hack_GM406889139.pdf
    • http://jerering.com/images/wurst-commands_GM479516143.pdf
    • http://jerering.com/images/hack-coin-master-no-human-verification_GM406889139.pdf
    • http://jerering.com/images/how-to-hack-and-get-free-robux_GM431946152.pdf
    • http://jerering.com/images/robux-generator-no-verification-2021_GM431946152.pdf
    • http://jerering.com/images/free-robux-only-username_GM431946152.pdf
    • http://jerering.com/images/free-spins-coin-master-2021_GM406889139.pdf
    • http://jerering.com/images/how-to-hack-robux_GM431946152.pdf
    • http://jerering.com/images/how-to-hack-roblox-games_GM431946152.pdf
    • http://jerering.com/images/free-robux-no-verify-2021_GM431946152.pdf
    • http://jerering.com/images/coin-master-free-spins-link-2021-hack_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004844.bin
51b2910d9c5f3c00dd324afbe7d577fc0a19af6cf15d68a69abd2533996dc9a7		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4844 29388 bytes
font_01_sfnt_off00008aea.bin
fc92a80cefddbcc51cb4ecd7284aa73b746cbd66adcf1d96110f0323ec06b51f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8AEA 2812 bytes
font_02_sfnt_off0000948b.bin
c8e711e41b973747ec323a47a761701fdaf1f8f6730ed7788ccf1517fe3358ad		 pdf-font-stream PDF embedded font (sfnt) at offset 0x948B 18584 bytes

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