MALICIOUS
82
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The document presents a fake CAPTCHA to trick the user into interacting with it, which is a common social engineering tactic. It contains multiple embedded URLs pointing to external resources, one of which is directly linked to a potential download. The ML classifier also flagged this PDF as malicious with high confidence.
Machine Learning
- Nyx PDF Classifier malicious score 0.9769
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.online/app/406889139/free-coins-coin-master-game-hack
- https://ifef.es/ckfinder/userfiles/files/free-coin-master-hacks-no-verification_GM406889139.pdf
- https://ifef.es/ckfinder/userfiles/files/roblox-free-followers_GM431946152.pdf
- https://ifef.es/ckfinder/userfiles/files/huskybuscom-free-robux_GM431946152.pdf
- https://ifef.es/ckfinder/userfiles/files/get-free-robux-now_GM431946152.pdf
- https://ifef.es/ckfinder/userfiles/files/how-to-hack-someones-roblox-account_GM431946152.pdf
- https://ifef.es/ckfinder/userfiles/files/game-hack-coin-master_GM406889139.pdf
- https://ifef.es/ckfinder/userfiles/files/sites-to-get-free-robux_GM431946152.pdf
- https://ifef.es/ckfinder/userfiles/files/coin-master-hack-2021_GM406889139.pdf
- https://ifef.es/ckfinder/userfiles/files/coin-master-email-rewards-link_GM406889139.pdf
- https://ifef.es/ckfinder/userfiles/files/minecraft-apk-download-v1-144-2-free_GM479516143.pdf
- https://ifef.es/ckfinder/userfiles/files/minecraft-windows-10-hacks_GM479516143.pdf
- https://ifef.es/ckfinder/userfiles/files/free-roblox-accounts-with-robux-2021_GM431946152.pdf
- https://ifef.es/ckfinder/userfiles/files/roblox-promo-code-to-get-free-robux_GM431946152.pdf
- https://ifef.es/ckfinder/userfiles/files/free-spins-for-coin-master-2021_GM406889139.pdf
- https://ifef.es/ckfinder/userfiles/files/coin-master-free-2021-spin-link_GM406889139.pdf
- https://ifef.es/ckfinder/userfiles/files/coin-master-hack-game-download-ios_GM406889139.pdf
- https://ifef.es/ckfinder/userfiles/files/minecraft-wurst_GM479516143.pdf
- https://ifef.es/ckfinder/userfiles/files/coin-master-daily-free-spins-and-coins-2021_GM406889139.pdf
- https://ifef.es/ckfinder/userfiles/files/how-to-get-cheap-pubg-uc_GM1330123889.pdf
- https://ifef.es/ckfinder/userfiles/files/claim-free-robux_GM431946152.pdf
- http://en.wikipedia.org/wiki/MIT_License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
stream_004_off00004e81.bind1eed2893beb409b2862ee6d6262a3553f4729f91098477d663c3518a73b08ad |
decompressed-pdf-stream | PDF FlateDecoded stream at offset 0x4E81 | 29216 bytes |
font_01_sfnt_off00008e60.bin3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8E60 | 2840 bytes |
font_02_sfnt_off00009812.binfd51fa1b849cf95139b510f282bcd47e41e352499df1938c7ca947a320e7b070 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9812 | 17712 bytes |
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