PDF malware analysis — malicious · fb6d5468350664ee

MALICIOUS

PDF

43.4 KB Created: 2021-05-11 04:07:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: fef2e70fca0d3b1baa8ac576408d51d5 SHA-1: e374f1f988072b232e8cf66f1accce2935a1a9d9 SHA-256: fb6d5468350664ee6c7fcfe514ec720825bbdb81c5c3159ef94129f8ea807930

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The document presents a fake CAPTCHA or human verification prompt to deceive the user into clicking a link. This link, such as 'https://netcdn.xyz/app/431946152/roblox-hack-me-robux-game-hack', likely leads to a malicious download or further compromise. The ML classifier also strongly indicated maliciousness.

Machine Learning

Nyx PDF Classifier malicious score 0.9969

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/roblox-hack-me-robux-game-hack
- https://hotelyetihome.com/userfiles/files/claim-gg-free-robux_GM431946152.pdf
- https://hotelyetihome.com/userfiles/files/minecraft-free-minecoins_GM479516143.pdf
- https://hotelyetihome.com/userfiles/files/free-roblox-accounts-with-robux-that-work-2021_GM431946152.pdf
- https://hotelyetihome.com/userfiles/files/hack-coin-master-game-apk_GM406889139.pdf
- https://hotelyetihome.com/userfiles/files/how-to-get-minecraft-for-free-on-xbox-360_GM479516143.pdf
- https://hotelyetihome.com/userfiles/files/coins-master_GM406889139.pdf
- https://hotelyetihome.com/userfiles/files/coin-master-hack-tool-exe_GM406889139.pdf
- https://hotelyetihome.com/userfiles/files/coin-master-35-13-hack-download_GM406889139.pdf
- https://hotelyetihome.com/userfiles/files/roblox-free-exploits_GM431946152.pdf
- https://hotelyetihome.com/userfiles/files/i-didnt-get-my-free-spins-in-coin-master_GM406889139.pdf
- https://hotelyetihome.com/userfiles/files/free-hacks-for-coin-master_GM406889139.pdf
- https://hotelyetihome.com/userfiles/files/coin-master-hack-using-cheat-engine_GM406889139.pdf
- https://hotelyetihome.com/userfiles/files/microsoft-bing-free-robux_GM431946152.pdf
- https://hotelyetihome.com/userfiles/files/free-robux-without-human-verification-real_GM431946152.pdf
- https://hotelyetihome.com/userfiles/files/free-coins-coin-master-2021_GM406889139.pdf
- https://hotelyetihome.com/userfiles/files/free-robux-generator-no-human-verification-2021_GM431946152.pdf
- https://hotelyetihome.com/userfiles/files/free-robux-without-human-verification-2021_GM431946152.pdf
- https://hotelyetihome.com/userfiles/files/free-coin-master-links_GM406889139.pdf
- https://hotelyetihome.com/userfiles/files/login-robux_GM431946152.pdf
- https://hotelyetihome.com/userfiles/files/hack-to-get-free-spins-on-coin-master_GM406889139.pdf
- http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_003_off00004a7f.bin` `2ad73dde695b7742a89de36e235191ddfba3d55f8ae7b39a0fc21b074e736d99`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4A7F	26344 bytes
`font_01_sfnt_off000086d2.bin` `a375bd11c65aaa265b5abc99eda8135c05062389b04afd63241033984f92b3c1`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x86D2	18520 bytes

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