Malicious PDF — malware analysis report

Static analysis result for SHA-256 77214e3e8d9257d2…

MALICIOUS

PDF

43.4 KB Created: 2021-05-11 19:53:52 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 0ce7e34eb177889b7ae92e0c567daee6 SHA-1: 4e8ebb391b3dddd7904573b45ba659308485fec2 SHA-256: 77214e3e8d9257d2a948ace226015341580c11c564af1fa167866bd907cb4d04
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for free game items, directing users to a URL that likely hosts a malicious payload. The heuristic 'SE_CLIPBOARD_COMMAND_LURE' indicates the document may instruct users to paste content into a command-line interface, suggesting an attempt to execute downloaded code. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

Heuristics 4

  • Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE
    Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
  • 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/479516143/free-minecraft-account-and-password-generator-game-hack
    • http://skwolcott.com/images/free-roblox-shirt-templates-2021_GM431946152.pdf
    • http://skwolcott.com/images/roblox-help-free-robux_GM431946152.pdf
    • http://skwolcott.com/images/robux-generator-no-verification-2021_GM431946152.pdf
    • http://skwolcott.com/images/earn-robux-by-watching-ads_GM431946152.pdf
    • http://skwolcott.com/images/how-to-earn-free-stars-on-coin-master_GM406889139.pdf
    • http://skwolcott.com/images/roblox-people-girl_GM431946152.pdf
    • http://skwolcott.com/images/haktuts-coin-master-free-daily-spins_GM406889139.pdf
    • http://skwolcott.com/images/free-spin-coin-master-hack-2021_GM406889139.pdf
    • http://skwolcott.com/images/how-to-get-free-robux-on-ipad_GM431946152.pdf
    • http://skwolcott.com/images/free-robux-generator-no-verification-2021_GM431946152.pdf
    • http://skwolcott.com/images/minecraft-free-download-android_GM479516143.pdf
    • http://skwolcott.com/images/coin-master-pro-hack_GM406889139.pdf
    • http://skwolcott.com/images/link-for-free-spins-on-coin-master_GM406889139.pdf
    • http://skwolcott.com/images/coin-master-hack-online-generator-without-human-verification_GM406889139.pdf
    • http://skwolcott.com/images/coin-master-generator-free_GM406889139.pdf
    • http://skwolcott.com/images/free-coins-on-coin-master-generator_GM406889139.pdf
    • http://skwolcott.com/images/how-to-get-free-clothes-on-roblox-2021_GM431946152.pdf
    • http://skwolcott.com/images/is-free-robux-real_GM431946152.pdf
    • http://skwolcott.com/images/roblox-free-robux-website_GM431946152.pdf
    • http://skwolcott.com/images/free-links-coin-master_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004d05.bin
bb40522700e4ee34d40f7a0134aef5a9cdf9e95081b604d0c2346602764cd780		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4D05 25920 bytes
font_01_sfnt_off0000874c.bin
cdc45183fd3a366ec771f9a19574e583e33f21726cf21e4bc9e9e1e7a2297661		 pdf-font-stream PDF embedded font (sfnt) at offset 0x874C 18344 bytes

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