MALICIOUS
162
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The document presents a fake CAPTCHA and download lures, aiming to trick users into clicking malicious links. The embedded URLs and the document body content strongly suggest a phishing attempt for game-related accounts or currency, likely leading to credential theft or malware distribution. The ML classifier also flagged this PDF as malicious with high confidence.
Machine Learning
- Nyx PDF Classifier malicious score 0.9832
Heuristics 6
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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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Callback phishing phone lure medium SE_CALLBACK_LUREDocument asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
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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/free-robux-no-password-or-username-may-game-hack
- https://www.nationalmilklaboratories.co.uk/uploads/files/files/pubg-uc-redeem_GM1330123889.pdf
- https://www.nationalmilklaboratories.co.uk/uploads/files/files/free-minecraft-java-edition-account_GM479516143.pdf
- https://www.nationalmilklaboratories.co.uk/uploads/files/files/how-to-hack-survoivr-in-roblox-pc_GM431946152.pdf
- https://www.nationalmilklaboratories.co.uk/uploads/files/files/if-i-uninstall-minecraft-can-i-reinstall-it-for-free_GM479516143.pdf
- https://www.nationalmilklaboratories.co.uk/uploads/files/files/games-like-minecraft-but-free_GM479516143.pdf
- https://www.nationalmilklaboratories.co.uk/uploads/files/files/free-texture-packs-for-minecraft-pe_GM479516143.pdf
- https://www.nationalmilklaboratories.co.uk/uploads/files/files/free-robux-websites-that-actually-work-2021_GM431946152.pdf
- https://www.nationalmilklaboratories.co.uk/uploads/files/files/free-robux-obby_GM431946152.pdf
- https://www.nationalmilklaboratories.co.uk/uploads/files/files/roblox-shirt-template-free_GM431946152.pdf
- https://www.nationalmilklaboratories.co.uk/uploads/files/files/roblox-games-with-free-radio_GM431946152.pdf
- https://www.nationalmilklaboratories.co.uk/uploads/files/files/hack-de-roblox-robux-gratis_GM431946152.pdf
- https://www.nationalmilklaboratories.co.uk/uploads/files/files/how-to-hack-roblox-accounts-on-phone-2021_GM431946152.pdf
- https://www.nationalmilklaboratories.co.uk/uploads/files/files/roblox-hack-accounts-apk_GM431946152.pdf
- https://www.nationalmilklaboratories.co.uk/uploads/files/files/free-minecraft-mods-for-pc_GM479516143.pdf
- https://www.nationalmilklaboratories.co.uk/uploads/files/files/free-roblox-girl-hair-not-a-model_GM431946152.pdf
- https://www.nationalmilklaboratories.co.uk/uploads/files/files/stock-speed-coin-master-free-spins_GM406889139.pdf
- https://www.nationalmilklaboratories.co.uk/uploads/files/files/link-for-free-spins-on-coin-master_GM406889139.pdf
- https://www.nationalmilklaboratories.co.uk/uploads/files/files/roblox-free-vip-servers-mad-city_GM431946152.pdf
- https://www.nationalmilklaboratories.co.uk/uploads/files/files/minecraft-windows-10-hacks_GM479516143.pdf
- https://www.nationalmilklaboratories.co.uk/uploads/files/files/free-robux-picture_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_off000054ba.binaaa0b15556c5a8e7ee5accaa4a5c74490cf16fadf2df77b7cf54b55d3a321ed5 |
decompressed-pdf-stream | PDF FlateDecoded stream at offset 0x54BA | 25804 bytes |
font_01_sfnt_off00008eb5.bin3d43cdb00c68dbdbfb96c649dd760f40482e4ec49f1bf17aa4be1327d25cd344 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8EB5 | 19556 bytes |
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