PDF malware analysis — malicious · 3764674a8702a79a

MALICIOUS

PDF

43.2 KB Created: 2021-05-14 01:00:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: bec2d175f5f31d32d37e1916c5ea712e SHA-1: 0b0d5594bcdb365bc72b4da96e36cd6f131896a2 SHA-256: 3764674a8702a79ad2a71c099e4508a81dff6a0849afc6243ee33fdd2033138b

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains a fake CAPTCHA lure to trick users into clicking embedded links, which is a common social engineering tactic. The primary embedded URL, https://netcdn.xyz/app/431946152/how-to-get-free-robux-website-game-hack, likely leads to a malicious payload or phishing page. While no scripts were directly extracted, the PDF structure and heuristics suggest it's designed to exploit user interaction for malicious purposes, potentially leading to client execution.

Machine Learning

Nyx PDF Classifier malicious score 0.9969

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/how-to-get-free-robux-website-game-hack
- http://suaedy-library.net/repository/how-to-setup-a-minecraft-server-for-free_GM479516143.pdf
- http://suaedy-library.net/repository/coin-master-free-spins-2021-hack_GM406889139.pdf
- http://suaedy-library.net/repository/hacks-roblox_GM431946152.pdf
- http://suaedy-library.net/repository/coin-master-jackpot-madness-hack_GM406889139.pdf
- http://suaedy-library.net/repository/coin-master-exchange-40-free-spins_GM406889139.pdf
- http://suaedy-library.net/repository/roblox-games-com-free_GM431946152.pdf
- http://suaedy-library.net/repository/robux-hack-me_GM431946152.pdf
- http://suaedy-library.net/repository/win-free-robux_GM431946152.pdf
- http://suaedy-library.net/repository/coin-master-2021-free-spins_GM406889139.pdf
- http://suaedy-library.net/repository/hack-coin-master-using-pc_GM406889139.pdf
- http://suaedy-library.net/repository/get-free-robux-generator_GM431946152.pdf
- http://suaedy-library.net/repository/free-robux-promo-codes-2021_GM431946152.pdf
- http://suaedy-library.net/repository/free-coin-master-spins-for-today_GM406889139.pdf
- http://suaedy-library.net/repository/60-free-spins-on-coin-master_GM406889139.pdf
- http://suaedy-library.net/repository/roblox-hack-me_GM431946152.pdf
- http://suaedy-library.net/repository/roblox-skin-free_GM431946152.pdf
- http://suaedy-library.net/repository/coin-master-unlimited-coins-hack-apk-download_GM406889139.pdf
- http://suaedy-library.net/repository/coin-master-free-coins-link-facebook_GM406889139.pdf
- http://suaedy-library.net/repository/coin-master-free-coins-and-spins-daily_GM406889139.pdf
- http://suaedy-library.net/repository/how-to-get-spins-on-coin-master-hack_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_003_off000049bb.bin` `1bfdb7e333c0ae624669efc19a0a6ae3fe698aa2531e09880729112437358758`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x49BB	25992 bytes
`font_01_sfnt_off00008566.bin` `ac0d4502235c23175446595a7cf8e817a77a023a22f0524dfc344b6b051bbd29`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8566	18600 bytes

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