Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e1013a503a19252…

MALICIOUS

PDF

40.3 KB Created: 2021-04-28 21:53:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 5f1b6fe2b0b60b7748953d54fbadf332 SHA-1: 9f8456c934959ef5433b450db9e5febc2c9876a6 SHA-256: 6e1013a503a192525d947f044439703dee59512aeb743ce585171aa0a9243f8a
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 User Execution: Malicious File

The PDF document uses social engineering tactics, specifically a 'Browser installation lure', to trick users into downloading malicious content related to Roblox cheats. It contains numerous embedded URLs pointing to suspicious domains, likely serving as download locations for malware or further phishing content. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9941

Heuristics 4

  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • 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/cheat-speed-roblox-game-hack PDF link annotation
    • http://wattkit.com/images/where-do-you-get-free-robux.pdfIn PDF document text
    • http://wattkit.com/images/how-to-hack-roblox-shinobi-life.pdfIn PDF document text
    • http://wattkit.com/images/fondo-roblox-hacker.pdfIn PDF document text
    • http://wattkit.com/images/boku-no-roblox-remastered-free-account.pdfIn PDF document text
    • http://wattkit.com/images/how-to-hack-a-account-in-roblox-2021.pdfIn PDF document text
    • http://wattkit.com/images/how-to-get-free-robux-on-roblox-on-ipad-2021.pdfIn PDF document text
    • http://wattkit.com/images/how-to-get-free-robux-on-computer-no-human-verification.pdfIn PDF document text
    • http://wattkit.com/images/free-robux-promo-codes-2021.pdfIn PDF document text
    • http://wattkit.com/images/free-admin-games-roblox.pdfIn PDF document text
    • http://wattkit.com/images/free-robux-generatere.pdfIn 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_003_off000041b9.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x41B9 25452 bytes
SHA-256: b1318a4176cade8881e0e90230be2faa43501ec4a07a52d704f8c1b9e2953b3f
font_01_sfnt_off00007a54.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A54 18632 bytes
SHA-256: 58feae1af51dd28e20e99705b0828ce712ca982b084888aa1135462fe1540d23

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