MALICIOUS
200
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF document contains multiple links to redirector infrastructure, specifically advertising free game items and cheats. One critical heuristic identified a link to known malicious redirector infrastructure, and the ML classifier strongly flagged this PDF as malicious. The document's content and embedded links suggest a phishing or scam attempt to lure users to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9984
Heuristics 6
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PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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Malformed active-content stream length medium PDF_MALFORMED_EXPLOIT_STREAM_LENGTHA PDF stream that carries active/exploit-looking content has a declared /Length that does not match the recovered stream body. Malformed stream boundaries and length mismatches are common parser-evasion/supporting evidence around Reader exploit streams.
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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) or Microsoft license-boilerplate 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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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.co/app/431946152/free-roblox-account-with-all-elements-on-elemental-battlegrounds-game-hack In PDF document text
- http://www.alpaca-buitensport.nl/images/free-robux-on-phone_GM431946152.pdfIn PDF document text
- http://www.alpaca-buitensport.nl/images/create-minecraft-server-free_GM479516143.pdfIn PDF document text
- http://www.alpaca-buitensport.nl/images/free-unlimited-coin-master-400-spin-link_GM406889139.pdfIn PDF document text
- http://www.alpaca-buitensport.nl/images/roblox-hacks-safe_GM431946152.pdfIn PDF document text
- http://www.alpaca-buitensport.nl/images/minecraft-bedrock-hacks-windows-10_GM479516143.pdfIn PDF document text
- http://www.alpaca-buitensport.nl/images/free-coin-master-links_GM406889139.pdfIn PDF document text
- http://www.alpaca-buitensport.nl/images/minecraft-windows-10-key-free_GM479516143.pdfIn PDF document text
- http://www.alpaca-buitensport.nl/images/coin-master-hack-mod-apk-android-1_GM406889139.pdfIn PDF document text
- http://www.alpaca-buitensport.nl/images/free-robux-from_GM431946152.pdfIn PDF document text
- http://www.alpaca-buitensport.nl/images/minecraft-classic-free_GM479516143.pdfIn PDF document text
- http://www.alpaca-buitensport.nl/images/coin-master-links-2021_GM406889139.pdfIn PDF document text
- http://www.alpaca-buitensport.nl/images/roblox-account-stealing-hack-by-kingtennisbal_GM431946152.pdfIn PDF document text
- http://www.alpaca-buitensport.nl/images/free-robux-cards_GM431946152.pdfIn PDF document text
- http://www.alpaca-buitensport.nl/images/roblox-trolling_GM431946152.pdfIn PDF document text
- http://www.alpaca-buitensport.nl/images/play-minecraft-free-online-no-download_GM479516143.pdfIn PDF document text
- http://www.alpaca-buitensport.nl/images/roblox-royale-high-diamond-hack_GM431946152.pdfIn PDF document text
- http://www.alpaca-buitensport.nl/images/free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
- http://www.alpaca-buitensport.nl/images/roblox-free-robux-ads_GM431946152.pdfIn PDF document text
- http://www.alpaca-buitensport.nl/images/free-minecraft-videos_GM479516143.pdfIn PDF document text
- http://www.alpaca-buitensport.nl/images/roblox-gift-card-online-free_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 |
|---|---|---|---|
font_00_sfnt_off000030a7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x30A7 | 22232 bytes |
SHA-256: db8ad223b3a09143d8bfabbddd66b26e1a19d08d3d6d5a27242af81f1b600766 |
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font_01_sfnt_off000061d4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x61D4 | 19628 bytes |
SHA-256: a5f2feb60cd8228792b51e3c5b2b5048e6060be9278684e426ca49ab6e98f973 |
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