Malicious PDF — malware analysis report

Static analysis result for SHA-256 384520ac52ccb492…

MALICIOUS

PDF

36.6 KB Created: 2021-05-22 22:14:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: c8012777918ba0246feb0d2764515b6f SHA-1: 7e130b910c292c0b2989f69d29a6721ab88dfbf9 SHA-256: 384520ac52ccb49245fe1139eae923ab844e399b427245f8124541d75764c670
82 Risk Score

Malware Insights

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

The document displays a fake CAPTCHA, a common lure to trick users into downloading further malware. The embedded URL, https://netcdn.xyz/app/479516143/minecraft-free-unblocked-game-hack, likely serves as the download source for this payload. The presence of multiple similar URLs also suggests a phishing or scamming campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9447

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/479516143/minecraft-free-unblocked-game-hack
    • http://xn----7sbq6amdnuk.xn--p1ai/images/como-conseguir-monedas-infinitas-y-tiradas-de-coin-master-hack_GM406889139.pdf
    • http://xn----7sbq6amdnuk.xn--p1ai/images/roblox-pink-free-robux_GM431946152.pdf
    • http://xn----7sbq6amdnuk.xn--p1ai/images/roblox-group-free-robux_GM431946152.pdf
    • http://xn----7sbq6amdnuk.xn--p1ai/images/free-robux-without-any-verification_GM431946152.pdf
    • http://xn----7sbq6amdnuk.xn--p1ai/images/how-to-get-free-robux-without-verification-or-surveys_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003534.bin
2f36348287c326c75ce779f6166f1867a03f8c29cd9a917049bceb353c11444d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3534 24648 bytes
font_01_sfnt_off00006d10.bin
4446ec9a14b3bfac30f066e0e962bc7f96b5cea98edad6ed93b9652aaf8297cb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D10 18472 bytes

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