MALICIOUS
102
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF document contains numerous embedded URLs and a document body that promotes "free Robux" and "free Minecraft" themes, indicative of a lure for potentially malicious downloads. The ML classifier strongly flagged this PDF as malicious, and the presence of a link farm heuristic further supports malicious intent. While no scripts were directly extracted, the embedded URLs are the primary mechanism for delivering a second-stage payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9980
Heuristics 4
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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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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/431946152/uprobuxcom-free-robux-game-hack PDF link annotation
- http://www.duchem.ae/uploaded_files/userfiles/files/free-roblox-rs_GM431946152.pdfIn PDF document text
- http://www.duchem.ae/uploaded_files/userfiles/files/how-to-download-minecraft-for-free-on-mac_GM479516143.pdfIn PDF document text
- http://www.duchem.ae/uploaded_files/userfiles/files/how-to-get-free-robux-com_GM431946152.pdfIn PDF document text
- http://www.duchem.ae/uploaded_files/userfiles/files/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
- http://www.duchem.ae/uploaded_files/userfiles/files/public-enemy-sun-prairie-coin-master-free-spins_GM406889139.pdfIn PDF document text
- http://www.duchem.ae/uploaded_files/userfiles/files/free-spins-coin-master-no-verification_GM406889139.pdfIn PDF document text
- http://www.duchem.ae/uploaded_files/userfiles/files/free-coins-coin-master-haktuts_GM406889139.pdfIn PDF document text
- http://www.duchem.ae/uploaded_files/userfiles/files/minecraft-mod-menu_GM479516143.pdfIn PDF document text
- http://www.duchem.ae/uploaded_files/userfiles/files/itv-television-centre-roblox-free_GM431946152.pdfIn PDF document text
- http://www.duchem.ae/uploaded_files/userfiles/files/how-to-change-your-username-on-roblox-for-free-2021_GM431946152.pdfIn PDF document text
- http://www.duchem.ae/uploaded_files/userfiles/files/how-do-you-get-free-roblox-in-youtube_GM431946152.pdfIn PDF document text
- http://www.duchem.ae/uploaded_files/userfiles/files/minecraft-free-ios-2021_GM479516143.pdfIn PDF document text
- http://www.duchem.ae/uploaded_files/userfiles/files/best-free-minecraft-servers_GM479516143.pdfIn PDF document text
- http://www.duchem.ae/uploaded_files/userfiles/files/easy-robux-today-com_GM431946152.pdfIn PDF document text
- http://www.duchem.ae/uploaded_files/userfiles/files/free-roblox-stampycat-tshirts_GM431946152.pdfIn PDF document text
- http://www.duchem.ae/uploaded_files/userfiles/files/girl-roblox-avatar_GM431946152.pdfIn PDF document text
- http://www.duchem.ae/uploaded_files/userfiles/files/rbx-place-free-robux_GM431946152.pdfIn PDF document text
- http://www.duchem.ae/uploaded_files/userfiles/files/free-robux-kid-friendly-no-human-verification_GM431946152.pdfIn PDF document text
- http://www.duchem.ae/uploaded_files/userfiles/files/new-free-spins-coin-master_GM406889139.pdfIn PDF document text
- http://www.duchem.ae/uploaded_files/userfiles/files/free-spins-for-coin-master-2021_GM406889139.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_off00002d8c.bin43344ebe9fea018bf0aa60a9d0d4c6723c283b48e565722ee4c3c0ccf93a9cfd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x2D8C | 21960 bytes |
font_01_sfnt_off00005ddd.bin77e1d77af257f2799f450e4aedc0e1b3eb2c97b8c20e190c5e1e9f2e5b207ac7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5DDD | 19152 bytes |
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