Malicious PDF — malware analysis report

Static analysis result for SHA-256 96b6b3c9263c9ece…

MALICIOUS

PDF

46.1 KB Created: 2021-06-03 06:53:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 88b725efcc376fd6626ad8f126cce9e8 SHA-1: 5c0f1ec255169612606e3ab8c4af8345dab23deb SHA-256: 96b6b3c9263c9ece48b84213e80df199dd4148738d125176113d2757dd15c2e1
82 Risk Score

Malware Insights

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

The document presents a fake CAPTCHA or human verification prompt to trick the user into clicking a malicious link. This link, 'https://netcdn.online/app/431946152/lazy-blocks-com-free-robux-game-hack', likely leads to the download of a second-stage payload. The presence of multiple similar URLs suggests a phishing campaign aiming to distribute potentially unwanted applications or malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

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.online/app/431946152/lazy-blocks-com-free-robux-game-hack
    • http://library.persadabunda.ac.id/repository/is-minecraft-free-on-xbox_GM479516143.pdf
    • http://library.persadabunda.ac.id/repository/free-robux-apk_GM431946152.pdf
    • http://library.persadabunda.ac.id/repository/spin-free-coin-master_GM406889139.pdf
    • http://library.persadabunda.ac.id/repository/coin-master-mod-apk-unlimited-spin-download-free-full-version_GM406889139.pdf
    • http://library.persadabunda.ac.id/repository/roblox-hack-ga_GM431946152.pdf
    • http://library.persadabunda.ac.id/repository/free-roblox-girl-hair-not-a-model_GM431946152.pdf
    • http://library.persadabunda.ac.id/repository/roblox-hack-me_GM431946152.pdf
    • http://library.persadabunda.ac.id/repository/coin-master-hack-apk-download-for-android-mobile_GM406889139.pdf
    • http://library.persadabunda.ac.id/repository/coin-master-free-daily-spins-today_GM406889139.pdf
    • http://library.persadabunda.ac.id/repository/microsoft-free-robux_GM431946152.pdf
    • http://library.persadabunda.ac.id/repository/real-robux_GM431946152.pdf
    • http://library.persadabunda.ac.id/repository/rbx-place-free-robux_GM431946152.pdf
    • http://library.persadabunda.ac.id/repository/how-to-get-free-robux-by-playing-games_GM431946152.pdf
    • http://library.persadabunda.ac.id/repository/coin-master-hack-activegamer_GM406889139.pdf
    • http://library.persadabunda.ac.id/repository/free-robux-earn_GM431946152.pdf
    • http://library.persadabunda.ac.id/repository/free-robux-generator-no-human-verification-2021_GM431946152.pdf
    • http://library.persadabunda.ac.id/repository/coin-master-free-spins-and-free-coins_GM406889139.pdf
    • http://library.persadabunda.ac.id/repository/coin-master-100-free-spins-link_GM406889139.pdf
    • http://library.persadabunda.ac.id/repository/multiplayer-master-hack-coins_GM406889139.pdf
    • http://library.persadabunda.ac.id/repository/how-to-make-clothes-on-roblox-for-free_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005080.bin
b7164ce5a257ec15aa169da6f5ede5cb01d00a139c6cdab4dff7d27dd1be2429		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5080 27488 bytes
font_01_sfnt_off00008f93.bin
34c8d34d38b90765c6e33941713304debcf78082891e10a16d595afa5c3321d4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8F93 19008 bytes

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