MALICIOUS
180
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF document was flagged as malicious. It uses brand-impersonation credential phishing, a fake-CAPTCHA lure, an MFA/2FA-themed lure and an urgency-based lure. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.
Machine Learning
- Nyx PDF Classifier clean score 0.0098
Heuristics 8
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PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LUREPDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
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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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MFA / one-time-code harvesting lure high SE_MFA_LUREDocument asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
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Brand-impersonation credential phishing lure high SE_BRAND_CREDENTIAL_PHISHDocument impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: call-to-action link host does not match the impersonated brand: http://netcdn.tw/app/1330123889/how-much-pubg-uc-cost-game-hack.
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Urgency / deadline lure low SE_URGENCY_LUREDocument contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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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 http://netcdn.tw/app/1330123889/how-much-pubg-uc-cost-game-hack PDF link annotation
- https://www.99champions.com/uploaded_files/userfiles/files/free-robux-codes-2021-september_GM431946152.pdfIn PDF document text
- https://www.99champions.com/uploaded_files/userfiles/files/how-to-get-free-robux-in-2021_GM431946152.pdfIn PDF document text
- https://www.99champions.com/uploaded_files/userfiles/files/free-spins-coin-master-blogspot_GM406889139.pdfIn PDF document text
- https://www.99champions.com/uploaded_files/userfiles/files/free-robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
- https://www.99champions.com/uploaded_files/userfiles/files/roblox-free-robux-codes_GM431946152.pdfIn PDF document text
- https://www.99champions.com/uploaded_files/userfiles/files/free-coins-coin-master-hack_GM406889139.pdfIn PDF document text
- https://www.99champions.com/uploaded_files/userfiles/files/minecraft-mod-updater_GM479516143.pdfIn PDF document text
- https://www.99champions.com/uploaded_files/userfiles/files/how-to-hack-people-in-roblox_GM431946152.pdfIn PDF document text
- https://www.99champions.com/uploaded_files/userfiles/files/free-promo-codes-roblox-free-robux_GM431946152.pdfIn PDF document text
- https://www.99champions.com/uploaded_files/userfiles/files/free-robux-hack-ipad_GM431946152.pdfIn PDF document text
- https://www.99champions.com/uploaded_files/userfiles/files/pink-dimond-robux-hack_GM431946152.pdfIn PDF document text
- https://www.99champions.com/uploaded_files/userfiles/files/foxy-hacks-com-roblox_GM431946152.pdfIn PDF document text
- https://www.99champions.com/uploaded_files/userfiles/files/free-robux-for-real-without-email-needed_GM431946152.pdfIn PDF document text
- https://www.99champions.com/uploaded_files/userfiles/files/coin-master-gold-cards-free_GM406889139.pdfIn PDF document text
- https://www.99champions.com/uploaded_files/userfiles/files/roblox-sun-drag-hack_GM431946152.pdfIn PDF document text
- https://www.99champions.com/uploaded_files/userfiles/files/krnl-roblox_GM431946152.pdfIn PDF document text
- https://www.99champions.com/uploaded_files/userfiles/files/free-spin-link-coin-master_GM406889139.pdfIn PDF document text
- https://www.99champions.com/uploaded_files/userfiles/files/obc-roblox-hack_GM431946152.pdfIn PDF document text
- https://www.99champions.com/uploaded_files/userfiles/files/roblox-zone-free-robux_GM431946152.pdfIn PDF document text
- https://www.99champions.com/uploaded_files/userfiles/files/roblox-studio-free-download-windows-10_GM431946152.pdfIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
stream_024_off00037a96.bin |
decompressed-pdf-stream | PDF FlateDecoded stream at offset 0x37A96 | 25928 bytes |
SHA-256: 271b3a173c0a1c208c669378972deb64f342752793c78816e411825d24a3c8b7 |
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font_01_sfnt_off0003b7a6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x3B7A6 | 18900 bytes |
SHA-256: 55a7986c2e1499befc60562fba78aa27ceda56a5107b0478229f9d7926f5012c |
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