Malicious PDF — malware analysis report

Static analysis result for SHA-256 084bbc689421360d…

MALICIOUS

PDF

34.8 KB Created: 2021-05-21 05:24:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: b99022dd05f174f82cf0b1348cc62bf6 SHA-1: 73d0cf4737eba6a59ea7b00e533d6e3c336941fa SHA-256: 084bbc689421360d3f4a21751856cc644bdf442841a51b9b0f1e81a7ce4440e3
82 Risk Score

Malware Insights

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

The document presents a fake CAPTCHA and a call-to-action button to trick the user into clicking a malicious link. The embedded URLs point to suspicious domains, and the ML classifier flagged the PDF as malicious. The document body contains text related to game hacks and a direct link to a generator, reinforcing the lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9508

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/roblox-got-talent-piano-hack-game-hack
    • http://iedarelief.us/images/minecraft-java-free-trial_GM479516143.pdf
    • http://iedarelief.us/images/free-roblox-hack-us_GM431946152.pdf
    • http://iedarelief.us/images/minecraft-reach-hack_GM479516143.pdf
    • http://iedarelief.us/images/how-to-get-free-roblox-money_GM431946152.pdf
    • http://iedarelief.us/images/free-robux-hack-generator_GM431946152.pdf
    • https://www.bandicam.com
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00002f83.bin
681e90fa8a03f2e8b29c9f1e93090b64ae433d04a47024c7496e2710d550cf6f		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2F83 23932 bytes
font_01_sfnt_off000065dc.bin
718cc2b062ab6cfaeb2a411bf3639d4ddcb64813a44b35fc4dc4c297fc3c3153		 pdf-font-stream PDF embedded font (sfnt) at offset 0x65DC 18560 bytes

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