Malicious PDF — malware analysis report

Static analysis result for SHA-256 431256298ec50b8f…

MALICIOUS

PDF

35.5 KB Created: 2021-05-23 06:39:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 9b081a362bd0f162d900762028e5db78 SHA-1: c807bd9c481cb6c0089f085297884baeba914055 SHA-256: 431256298ec50b8ff4e88da08a338a89792e7d8773dd505e7a40bf1b57a3f3bd
82 Risk Score

Malware Insights

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

The PDF document displays a fake CAPTCHA or human verification prompt, a common social engineering tactic to trick users into interacting with malicious content. It contains an external URI pointing to a URL that appears to be a lure for downloading software or accessing a game hack. The presence of multiple suspicious URLs suggests a phishing or scam attempt.

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/479516143/how-to-download-minecraft-for-free-on-mac-game-hack PDF link annotation
    • https://www.xenonsvjetla.com/files/tiktok-free-britney_GM835599320.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/plug-toolbox-for-minecraft-free-ios_GM479516143.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/free-spins-coin-master-links-twitter_GM406889139.pdfIn PDF document text
    • http://xenonsvjetla.com/files/free-robux-without-offers_GM431946152.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/free-roblox-accounts-with-robux-that-work-2021_GM431946152.pdfIn PDF document text
    • https://discord.ggIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off000031ea.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x31EA 24408 bytes
SHA-256: 9b9609ac69c1a179758a51e64fcbec2d3fc644ea3c22fbb20a61f58f790f82ab
font_01_sfnt_off00006944.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6944 18292 bytes
SHA-256: 5130427873d9275259bc23122af53847ba8d90dc149b772f5578788f281f3faa

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