MALICIOUS
142
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF document exhibits characteristics of a phishing or scam campaign, using a fake CAPTCHA lure to trick users into downloading files. It contains a large number of external links, many pointing to game-related content, suggesting an attempt to drive traffic to malicious or deceptive sites. The presence of embedded URLs and the ML classifier's high confidence score further support its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9969
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-apk-game-hack
- http://www.arichuna.com/images/files/minecraft-pe-free-apk_GM479516143.pdf
- http://www.arichuna.com/images/files/coin-master-free-spin-link-new_GM406889139.pdf
- http://www.arichuna.com/images/files/coin-master-hack-pro-gamers_GM406889139.pdf
- http://www.arichuna.com/images/files/free-spins-for-coin-master-2021_GM406889139.pdf
- http://www.arichuna.com/images/files/free-spins-coin-master-app-ios_GM406889139.pdf
- http://www.arichuna.com/images/files/rewards-robux_GM431946152.pdf
- http://www.arichuna.com/images/files/free-robux-no-human-verification-or-survey-or-download-2021_GM431946152.pdf
- http://www.arichuna.com/images/files/coin-master-free-spin-trick_GM406889139.pdf
- http://www.arichuna.com/images/files/is-minecraft-education-edition-free_GM479516143.pdf
- http://www.arichuna.com/images/files/free-coin-master-gifts_GM406889139.pdf
- http://www.arichuna.com/images/files/online-coin-master-free-spin-app_GM406889139.pdf
- http://www.arichuna.com/images/files/give-free-robux_GM431946152.pdf
- http://www.arichuna.com/images/files/hack-coin-master-app_GM406889139.pdf
- http://www.arichuna.com/images/files/free-spins-october-28-2021-coin-master_GM406889139.pdf
- http://www.arichuna.com/images/files/free-robux-apps-that-work_GM431946152.pdf
- http://www.arichuna.com/images/files/coin-master-free-spins-2021_GM406889139.pdf
- http://www.arichuna.com/images/files/coin-master-70-spin-link-2021_GM406889139.pdf
- http://www.arichuna.com/images/files/free-spins-for-coin-master-hack_GM406889139.pdf
- http://www.arichuna.com/images/files/coin-master-daily_GM406889139.pdf
- http://www.arichuna.com/images/files/real-coin-master-free-spins_GM406889139.pdf
- http://en.wikipedia.org/wiki/MIT_License
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00004a13.bin2dbd0399b1421313ff424838b41dc649ac57033e27376ca870cf9fa6d820740d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4A13 | 27668 bytes |
font_01_sfnt_off00008781.bine9359734bc9145e2b26d31ba7f580aebc3bf98c57002eb6e857d81b76a5cddb9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8781 | 18360 bytes |
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