Malicious PDF — malware analysis report

Static analysis result for SHA-256 733e082f73be919f…

MALICIOUS

PDF

36.2 KB Created: 2021-05-22 12:13:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: db1fc9d042ac6dc0802b07a33aa0b497 SHA-1: 3a77adb67be3befce7fa8eb1029c596bc6232c0e SHA-256: 733e082f73be919f18072205900efb525799a647be7904f38b1db9a876a849a5
82 Risk Score

Malware Insights

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

The PDF document contains lures for free in-game currency and followers, directing users to external URLs. Heuristics indicate a browser installation lure and a general malicious classification, suggesting the document is designed to trick users into downloading or installing malicious content. No scripts were extracted, but the presence of embedded URLs and social engineering tactics points to a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9508

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/835599320/free-tiktok-followers-generator-game-hack
    • http://stikomyogyakarta.ac.id/ckfinder/userfiles/files/how-much-robux-can-you-get-with-1-million-dollars_GM431946152.pdf
    • http://stikomyogyakarta.ac.id/ckfinder/userfiles/files/how-to-get-minecraft-pe-for-free-ios_GM479516143.pdf
    • http://stikomyogyakarta.ac.id/ckfinder/userfiles/files/minecraft-116-apk-download_GM479516143.pdf
    • http://stikomyogyakarta.ac.id/ckfinder/userfiles/files/how-to-get-minecraft-windows-10-for-free-with-java_GM479516143.pdf
    • http://stikomyogyakarta.ac.id/ckfinder/userfiles/files/real-minecraft-for-free_GM479516143.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off0000323e.bin
7f9578502993b4ebbc943d9c8e9ea40beb3a0a378c141359a5e5c617d1b0b5d5		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x323E 25728 bytes
font_01_sfnt_off00006d29.bin
15e81544c7296339f60406a70d440ba472803439c3c01f92585f07e7e66dad8a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D29 17924 bytes

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