PDF malware analysis — malicious · 05866f7d20e1a709

MALICIOUS

PDF

45.6 KB Created: 2021-06-03 13:39:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 26c296bf91cdcf9557bfbc6370474a26 SHA-1: 47ec098e57e2311e47df66da56efdfb899479430 SHA-256: 05866f7d20e1a709879324160729f617130184bc5056faa91942fa9a193bdfac

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document displays a fake CAPTCHA or human verification prompt to trick users into clicking a link. The embedded URL, https://netcdn.online/app/431946152/ways-to-earn-robux-game-hack, likely leads to a malicious website designed to deliver a second-stage payload or phish for credentials. The document's content and heuristics strongly suggest a social engineering attack aimed at user interaction.

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/ways-to-earn-robux-game-hack
- http://perpus.i2s-learning.com/repository/free-minecraft-capes-no-mods_GM479516143.pdf
- http://perpus.i2s-learning.com//repository/tiktok-free-college-books_GM835599320.pdf
- http://perpus.i2s-learning.com/repository/how-to-get-free-robux-easy-2021_GM431946152.pdf
- http://perpus.i2s-learning.com/repository/coin-master-free-spins-link-deutsch-ios_GM406889139.pdf
- http://perpus.i2s-learning.com//repository/apps-to-get-free-robux_GM431946152.pdf
- http://perpus.i2s-learning.com/repository/free-roblox-shirt-templates-2021_GM431946152.pdf
- http://perpus.i2s-learning.com/repository/minecraft-for-laptop-free_GM479516143.pdf
- http://perpus.i2s-learning.com//repository/free-robux-no-verification_GM431946152.pdf
- http://perpus.i2s-learning.com//repository/free-promo-codes-for-robux_GM431946152.pdf
- http://perpus.i2s-learning.com/repository/free-robux-hack-2021_GM431946152.pdf
- http://perpus.i2s-learning.com//repository/coin-master-free-shield_GM406889139.pdf
- http://perpus.i2s-learning.com//repository/roblox-hack-download_GM431946152.pdf
- http://perpus.i2s-learning.com//repository/free-robux-generator-for-kids_GM431946152.pdf
- http://perpus.i2s-learning.com/repository/roblox-gift-card-free-codes_GM431946152.pdf
- http://perpus.i2s-learning.com//repository/free-spins-coin-master-hack-2021_GM406889139.pdf
- http://perpus.i2s-learning.com//repository/free-robux-for-free_GM431946152.pdf
- http://perpus.i2s-learning.com/repository/how-to-get-100-robux-for-free_GM431946152.pdf
- http://perpus.i2s-learning.com//repository/roblox-hack-codes_GM431946152.pdf
- http://perpus.i2s-learning.com//repository/free-robux-app-2021_GM431946152.pdf
- http://perpus.i2s-learning.com/repository/coin-master-32-hack-apk-download_GM406889139.pdf
- http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_004_off00005283.bin` `633cbbc1e00a9e1e74983977b8b2af61e037d79abef06c5daeb9d02fa6622375`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x5283	25972 bytes
`font_01_sfnt_off00008f25.bin` `a97dc755a6f2d2ed213355e04e982d1291fa69ee2bd0a77560176eb39858d63d`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8F25	18456 bytes

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