Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e309e6c0f34c804…

MALICIOUS

PDF

41.9 KB Created: 2021-05-12 03:00:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 250d072190f779d478c186d850c53363 SHA-1: 8176d96b98ea0f0dc306a1b638eed2dbd4cef924 SHA-256: 6e309e6c0f34c8046e2601c088798739ad6b50795d89779f2a18e9eb95c8cfd2
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a fake CAPTCHA lure, designed to trick users into interacting with it. It also embeds external URLs, one of which is directly linked to a 'how to hack Robux' theme, suggesting a phishing or scam attempt. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/431946152/how-to-hack-robux-game-hack
    • http://dottgagliardi.com/images/free-roblox-accounts-with-robux-that-work-2021_GM431946152.pdf
    • http://dottgagliardi.com/images/roblox-gift-card-free-codes_GM431946152.pdf
    • http://dottgagliardi.com/images/free-robux-download_GM431946152.pdf
    • http://dottgagliardi.com/images/descargar-hack-coin-master_GM406889139.pdf
    • http://dottgagliardi.com/images/promo-code-free-robux_GM431946152.pdf
    • http://dottgagliardi.com/images/what-games-on-roblox-give-you-free-robux_GM431946152.pdf
    • http://dottgagliardi.com/images/how-to-get-free-roebucks-in-roblox_GM431946152.pdf
    • http://dottgagliardi.com/images/free-spin-and-coin-blogspot-com_GM406889139.pdf
    • http://dottgagliardi.com/images/scaffold-minecraft-hack_GM479516143.pdf
    • http://dottgagliardi.com/images/roblox-booga-booga-hack_GM431946152.pdf
    • http://dottgagliardi.com/images/minecraft-free-download-chromebook_GM479516143.pdf
    • http://dottgagliardi.com/images/free-spins-for-coin-master-ios_GM406889139.pdf
    • http://dottgagliardi.com/images/free-robux-no-downloading-apps_GM431946152.pdf
    • http://dottgagliardi.com/images/coin-master-daily-free-spins-hack_GM406889139.pdf
    • http://dottgagliardi.com/images/minecraft-free-school_GM479516143.pdf
    • http://dottgagliardi.com/images/mcmaster-club-coin-master-hack_GM406889139.pdf
    • http://dottgagliardi.com/images/free-robux-scams_GM431946152.pdf
    • http://dottgagliardi.com/images/coin-master-hack-without-human-verification-2021_GM406889139.pdf
    • http://dottgagliardi.com/images/gamehunters-coin-master_GM406889139.pdf
    • http://dottgagliardi.com/images/roblox-free-online-game_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000046ea.bin
c02771d1498fd810717475636158d16702897deb85d408f4f4ca0407ded72199		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x46EA 24952 bytes
font_01_sfnt_off000080b9.bin
799ae8847f356c5b4d712fc876b96dd84d848442331064266ecb6e470ae97e62		 pdf-font-stream PDF embedded font (sfnt) at offset 0x80B9 18412 bytes

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