MALICIOUS
142
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF document contains a large number of external links, many of which point to SEO-optimized PDF files related to game cheats and free currency. The presence of a fake CAPTCHA heuristic suggests a social engineering tactic to trick users into clicking these links. The ML classifier also strongly indicated maliciousness. The document's content and structure are consistent with a link farm designed to drive traffic to potentially malicious or scam-related websites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9988
Heuristics 5
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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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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.xyz/app/431946152/free-robux-only-username-no-human-verification-game-hack
- http://www.yes-info.fr/images/get-free-cards-for-coin-master_GM406889139.pdf
- http://www.yes-info.fr/images/roblox-fun-com-free-robux_GM431946152.pdf
- http://www.yes-info.fr/images/hack-free-spin-coin-master_GM406889139.pdf
- http://www.yes-info.fr/images/coin-master-hack-ios-cydia_GM406889139.pdf
- http://www.yes-info.fr/images/how-to-get-hacks-on-roblox_GM431946152.pdf
- http://www.yes-info.fr/images/free-spin-coin-master-link-2021_GM406889139.pdf
- http://www.yes-info.fr/images/robux-free-online_GM431946152.pdf
- http://www.yes-info.fr/images/coin-master-hack-apk-download-for-android_GM406889139.pdf
- http://www.yes-info.fr/images/free-coin-master-coins-2021_GM406889139.pdf
- http://www.yes-info.fr/images/coin-master-cheats-free_GM406889139.pdf
- http://www.yes-info.fr/images/hack-coin-master-apk-358_GM406889139.pdf
- http://www.yes-info.fr/images/roblox-account-taker_GM431946152.pdf
- http://www.yes-info.fr/images/how-to-get-a-cape-in-minecraft-for-free_GM479516143.pdf
- http://www.yes-info.fr/images/op-rewards-free-robux_GM431946152.pdf
- http://www.yes-info.fr/images/how-to-get-20210-robux-for-free_GM431946152.pdf
- http://www.yes-info.fr/images/how-to-make-free-robux_GM431946152.pdf
- http://www.yes-info.fr/images/how-to-get-free-robux-without-verifying_GM431946152.pdf
- http://www.yes-info.fr/images/coin-master-free-spin-link-today-download_GM406889139.pdf
- http://www.yes-info.fr/images/hack-coin-pro-coin-master_GM406889139.pdf
- http://www.yes-info.fr/images/coin-master-spin-pattern_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_002_off00004400.binc894dddd82c4a466adfa63098cb1f9e9513dcd01d59d1fb21cb7377a86bab156 |
decompressed-pdf-stream | PDF FlateDecoded stream at offset 0x4400 | 26748 bytes |
font_01_sfnt_off000080fd.bin0069d31deed1bc6c2f872d57868e98b772485fef1053c0a123ffd6dc6d604850 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x80FD | 19300 bytes |
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