PDF malware analysis — malicious · 446814015e14ab16

MALICIOUS

PDF

46.4 KB Created: 2021-05-19 08:10:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: e03b3fb2f57943b84d005f95ac0122a0 SHA-1: 22f76822c72f53ba9189dca46052dd1c71434677 SHA-256: 446814015e14ab1613315fba6c1a19d9d5483e789bee0efbc899727843a8dfa8

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 trick the user into clicking a link, which is a common social engineering tactic. The embedded URL and numerous other URLs found in the document body point to sites offering game hacks and cheats, suggesting the document is a lure for downloading potentially malicious software. No scripts were extracted from this sample.

Machine Learning

Nyx PDF Classifier malicious score 0.8696

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/microsoft-bing-free-robux-game-hack
- https://luyenthitoanpro.com/public/upload/files/coin-master-daily-free-spins-link-today-twitter_GM406889139.pdf
- https://luyenthitoanpro.com/public/upload/files/easy-robux_GM431946152.pdf
- https://luyenthitoanpro.com/public/upload/files/coin-master-daily-free-spins-link-today-facebook_GM406889139.pdf
- https://luyenthitoanpro.com/public/upload/files/try-coin-master-hack_GM406889139.pdf
- https://luyenthitoanpro.com/public/upload/files/roblox-hack-download-pc_GM431946152.pdf
- https://luyenthitoanpro.com/public/upload/files/free-spin-link-for-coin-master-game_GM406889139.pdf
- https://luyenthitoanpro.com/public/upload/files/hacks-for-minecraft-windows-10_GM479516143.pdf
- https://luyenthitoanpro.com/public/upload/files/spin-links-for-coin-master_GM406889139.pdf
- https://luyenthitoanpro.com/public/upload/files/coinmaster-gps-user-review-coinmaster-coin-master-hack-pagedemo-index_GM406889139.pdf
- https://luyenthitoanpro.com/public/upload/files/how-to-get-coin-master-free-spins-in-email_GM406889139.pdf
- https://luyenthitoanpro.com/public/upload/files/free-robux-no-survey-or-human-verification_GM431946152.pdf
- https://luyenthitoanpro.com/public/upload/files/robux-websites-that-work_GM431946152.pdf
- https://luyenthitoanpro.com/public/upload/files/free-robux-promo-codes-2021_GM431946152.pdf
- https://luyenthitoanpro.com/public/upload/files/websites-for-robux_GM431946152.pdf
- https://luyenthitoanpro.com/public/upload/files/minecraft-win-10-free_GM479516143.pdf
- https://luyenthitoanpro.com/public/upload/files/free-spin-link-coin-master-today_GM406889139.pdf
- https://luyenthitoanpro.com/public/upload/files/old-roblox-accounts-for-free_GM431946152.pdf
- https://luyenthitoanpro.com/public/upload/files/master-hack-coin_GM406889139.pdf
- https://luyenthitoanpro.com/public/upload/files/coin-master-free-spins-2021_GM406889139.pdf
- https://luyenthitoanpro.com/public/upload/files/how-to-get-free-robux-on-roblox-2021_GM431946152.pdf
- http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_003_off00004e37.bin` `4cb22e7afd7983b9e1867fa117b1a0b6b9db160675a7f1841a71891978e849b3`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4E37	24832 bytes
`font_01_sfnt_off000087af.bin` `db1860fd79a3f2cbe32e2bada3ba4c68a2d581b7a24294387cd777233cc9cef6`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x87AF	2828 bytes
`font_02_sfnt_off00009166.bin` `f6da71d3ec7876d1f2450260025b1db4712d77c7886386833aafb50cc2347919`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9166	18720 bytes

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