MALICIOUS
82
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The document presents a fake CAPTCHA or human verification prompt to trick users into downloading a payload, as indicated by the SE_FAKE_CAPTCHA heuristic. The embedded URL, https://netcdn.tw/app/431946152/cheat-manager-free-robux-game-hack, likely hosts the malicious second-stage content. While no scripts were explicitly extracted, the PDF structure and ML classification suggest malicious intent, potentially involving exploitation for client execution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9865
Heuristics 4
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Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHADocument displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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External URI info PDF_URIPDF contains an external URL action
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Embedded URL info EMBEDDED_URLOne 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.tw/app/431946152/cheat-manager-free-robux-game-hack
- https://www.croydex.com/uploads/files/files/roblox-robux-hack_GM431946152.pdf
- https://www.croydex.com/uploads/files/files/free-roblox-com_GM431946152.pdf
- https://www.croydex.com/uploads/files/files/how-to-get-minecraft-realms-for-free_GM479516143.pdf
- https://www.croydex.com/uploads/files/files/how-to-make-a-group-on-roblox-for-free_GM431946152.pdf
- https://www.croydex.com/uploads/files/files/minecraft-classic-free_GM479516143.pdf
- https://www.croydex.com/uploads/files/files/free-minecraft-alts_GM479516143.pdf
- https://www.croydex.com/uploads/files/files/cmaster-club-coin-master-hack_GM406889139.pdf
- https://www.croydex.com/uploads/files/files/minecraft-free-play-now_GM479516143.pdf
- https://www.croydex.com/uploads/files/files/how-to-get-free-robux-and-tickets-on-roblox-2021_GM431946152.pdf
- https://www.croydex.com/uploads/files/files/spin-coin-master-free_GM406889139.pdf
- https://www.croydex.com/uploads/files/files/robux-hack_GM431946152.pdf
- https://www.croydex.com/uploads/files/files/coin-master-free-spin-link-app_GM406889139.pdf
- https://www.croydex.com/uploads/files/files/focus-points-hack-roblox-dance-your-blox-off_GM431946152.pdf
- https://www.croydex.com/uploads/files/files/spin-hack-for-coin-master_GM406889139.pdf
- https://www.croydex.com/uploads/files/files/coin-master-shield-hack_GM406889139.pdf
- https://www.croydex.com/uploads/files/files/free-robux-no-verification-no-download_GM431946152.pdf
- https://www.croydex.com/uploads/files/files/tiktok-free-likes-and-followers-2021_GM835599320.pdf
- https://www.croydex.com/uploads/files/files/www-coinmaster-com_GM406889139.pdf
- https://www.croydex.com/uploads/files/files/coin-master-heaven-links-free-spins_GM406889139.pdf
- https://www.croydex.com/uploads/files/files/login-robux_GM431946152.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_off00004e61.bin523e9853eadeedfc286b9330e0cbff2f2d07ccbe32da5877fb81a9f314060b2b |
decompressed-pdf-stream | PDF FlateDecoded stream at offset 0x4E61 | 26200 bytes |
font_01_sfnt_off00008a90.bin125c55ae2bed405adaf6b515ba662c1ce360b7e633cbe6774b13f0b3204b52fc |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8A90 | 18996 bytes |
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