PDF malware analysis — malicious · c8eb354f42aa1fb2

MALICIOUS

PDF

45.0 KB Created: 2021-05-14 01:33:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: b0805506d250fea959eb4082b6c3dd5c SHA-1: d2681cab15cd252b06af77abfb9d366d1df8677d SHA-256: c8eb354f42aa1fb2d4c1a3e9563baafade1be5c2dab66f361031edfa4064ab9c

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a fake CAPTCHA or human verification prompt, a common lure to trick users into clicking malicious links. The document body and extracted URLs promote 'free Robux' or 'free spins' and link to external sites, suggesting a scam or malware distribution. No scripts were extracted from this sample.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

Heuristics 4

Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA

Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON

Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
External URI info PDF_URI

PDF contains an external URL action
Embedded URL info EMBEDDED_URL

One 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-no-human-verification-or-survey-or-download-2021-game-hack
- https://jdlgroup.ca/images/robux-download_GM431946152.pdf
- https://jdlgroup.ca/images/free-robux-for-kids-no-verification_GM431946152.pdf
- https://jdlgroup.ca/images/free-spins-coin-master-app_GM406889139.pdf
- https://jdlgroup.ca/images/how-to-get-robux-for-free-2021_GM431946152.pdf
- https://jdlgroup.ca/images/free-robux-no-downloading-apps_GM431946152.pdf
- https://jdlgroup.ca/images/coin-master-free-spins-and-coins-app-download_GM406889139.pdf
- https://jdlgroup.ca/images/no-human-verification-hack-for-coin-master_GM406889139.pdf
- https://jdlgroup.ca/images/coin-master-daily-gift-free-spins-and-coins-link_GM406889139.pdf
- https://jdlgroup.ca/images/free-robux-without-verify_GM431946152.pdf
- https://jdlgroup.ca/images/como-hackear-coin-master-2021_GM406889139.pdf
- https://jdlgroup.ca/images/coin-master-hack-com_GM406889139.pdf
- https://jdlgroup.ca/images/how-to-get-hacks-on-minecraft_GM479516143.pdf
- https://jdlgroup.ca/images/roblox-verification_GM431946152.pdf
- https://jdlgroup.ca/images/coin-master-free-cards-hack_GM406889139.pdf
- https://jdlgroup.ca/images/coin-master-daily-free-spins-link-today_GM406889139.pdf
- https://jdlgroup.ca/images/minecraft-free-unblocked_GM479516143.pdf
- https://jdlgroup.ca/images/free-robux-please_GM431946152.pdf
- https://jdlgroup.ca/images/wurst_GM479516143.pdf
- https://jdlgroup.ca/images/ways-to-get-free-robux-2021_GM431946152.pdf
- https://jdlgroup.ca/images/coin-master-unlimited-free-spins_GM406889139.pdf
- https://www.bandicam.com
- 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_off00004b50.bin` `c7e5b8c06a1e3840c0cf2bbfcd3f7a25cad47e42e765fb1694a83dac71fd8800`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x4B50	26480 bytes
`font_01_sfnt_off000087d1.bin` `66e5e50e12f5eb49621ab9bcd6ab85026409d616512a452c1eb3339dd9867554`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x87D1	20136 bytes

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