Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e5e0fbfb2912698…

MALICIOUS

PDF

44.1 KB Created: 2021-05-10 23:35:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: ddfc308157b7291309e0986f7231e19f SHA-1: da7715daf068912f050a8fe4c8cf60f0371dcdbf SHA-256: 2e5e0fbfb2912698e02a31e7844ee97edfac78a68836b960bb43f15c0ba93a87
82 Risk Score

Malware Insights

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

The PDF document contains a fake CAPTCHA lure, which is a common social engineering tactic to trick users into interacting with malicious content. It also embeds external URIs pointing to domains associated with game hacks and free currency, further supporting the lure. The primary malicious URL identified is https://netcdn.xyz/app/431946152/easy-ways-to-get-free-robux-game-hack, which likely serves as a download or redirect for a secondary payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9976

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/431946152/easy-ways-to-get-free-robux-game-hack
    • http://e-library.stienobel-indonesia.ac.id/repository/how-to-hack-roblox-to-get-free-robux_GM431946152.pdf
    • http://e-library.stienobel-indonesia.ac.id//repository/how-to-hack-someones-minecraft-account_GM479516143.pdf
    • http://e-library.stienobel-indonesia.ac.id//repository/earn-free-robux-today_GM431946152.pdf
    • http://e-library.stienobel-indonesia.ac.id//repository/how-to-hack-a-roblox-account-easy_GM431946152.pdf
    • http://e-library.stienobel-indonesia.ac.id//repository/hack-coin-master-2021-pc_GM406889139.pdf
    • http://e-library.stienobel-indonesia.ac.id//repository/free-robux-generator-2021-no-human-verification_GM431946152.pdf
    • http://e-library.stienobel-indonesia.ac.id/repository/hackear-coin-master-espaol_GM406889139.pdf
    • http://e-library.stienobel-indonesia.ac.id/repository/game-give-free-robux_GM431946152.pdf
    • http://e-library.stienobel-indonesia.ac.id/repository/coin-master-hack-version-download-2021-ios_GM406889139.pdf
    • http://e-library.stienobel-indonesia.ac.id//repository/coin-master-free-spins-link-2021_GM406889139.pdf
    • http://e-library.stienobel-indonesia.ac.id//repository/roblox-free-clothes-codes_GM431946152.pdf
    • http://e-library.stienobel-indonesia.ac.id/repository/roblox-cheat-robux_GM431946152.pdf
    • http://e-library.stienobel-indonesia.ac.id//repository/coin-master-free-cards-hack_GM406889139.pdf
    • http://e-library.stienobel-indonesia.ac.id/repository/games-to-get-free-robux_GM431946152.pdf
    • http://e-library.stienobel-indonesia.ac.id/repository/oprewards-login_GM431946152.pdf
    • http://e-library.stienobel-indonesia.ac.id//repository/how-to-get-free-roebucks-on-roblox_GM431946152.pdf
    • http://e-library.stienobel-indonesia.ac.id//repository/free-robux-meme_GM431946152.pdf
    • http://e-library.stienobel-indonesia.ac.id//repository/coin-master-daily-bonus_GM406889139.pdf
    • http://e-library.stienobel-indonesia.ac.id//repository/minecraft-classic-free_GM479516143.pdf
    • http://e-library.stienobel-indonesia.ac.id/repository/coin-master-free-box_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004c00.bin
f38f25c03fd29782efa57ddde1c61f22caa549b5b5a1e13e3e9e33ed54d0cf33		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4C00 26804 bytes
font_01_sfnt_off000088aa.bin
ff2b5f5648817baecf5754646eae61914eefadf3856a555e8e6cbc13d6b08405		 pdf-font-stream PDF embedded font (sfnt) at offset 0x88AA 18724 bytes

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