PDF malware analysis — malicious · 9f77be41625c6349

MALICIOUS

PDF

42.5 KB Created: 2021-06-14 02:13:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 0ff0ece7b2d99b00b1559b36bd197bc5 SHA-1: bce45d8d8cb5a1f8b3246c60912fe9b3880e1e15 SHA-256: 9f77be41625c6349cde04cd303567b328310e780907dde65c301bca4623ab6d5

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 User Execution: Malicious File

The PDF document contains a fake CAPTCHA lure, designed to trick the user into executing a downloaded payload. The embedded URL points to a resource that likely serves this payload. The ML classifier also strongly indicated maliciousness.

Machine Learning

Nyx PDF Classifier malicious score 0.9971

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 http://netcdn.co/app/431946152/roblox-cool-t-shirts-free-game-hack
- https://wenshan.com.tw/upload/files/free-spins-in-coin-master-2021_GM406889139.pdf
- https://wenshan.com.tw/upload/files/roblox-promo-codes-2021-robux_GM431946152.pdf
- https://wenshan.com.tw/upload/files/how-to-download-minecraft-for-free-ios_GM479516143.pdf
- https://wenshan.com.tw/upload/files/coin-master-home_GM406889139.pdf
- https://wenshan.com.tw/upload/files/coin-master-mod-apk-free-download_GM406889139.pdf
- https://wenshan.com.tw/upload/files/ro-ghoul-script_GM431946152.pdf
- https://wenshan.com.tw/upload/files/coin-master-hack-without-root_GM406889139.pdf
- https://wenshan.com.tw/upload/files/free-robux-just-enter-username-and-password_GM431946152.pdf
- https://wenshan.com.tw/upload/files/como-descargar-coin-master-hackeado_GM406889139.pdf
- https://wenshan.com.tw/upload/files/free-spin-and-coin-links_GM406889139.pdf
- https://wenshan.com.tw/upload/files/coin-master-daily-free-spins-and-coins-2021_GM406889139.pdf
- https://wenshan.com.tw/upload/files/fb-coin-master-free-spins-link_GM406889139.pdf
- https://wenshan.com.tw/upload/files/blox-fish-free-robux_GM431946152.pdf
- https://wenshan.com.tw/upload/files/free-robux-promo-codes_GM431946152.pdf
- https://wenshan.com.tw/upload/files/free-online-spins-coin-master_GM406889139.pdf
- https://wenshan.com.tw/upload/files/free-robux-hack-us_GM431946152.pdf
- https://wenshan.com.tw/upload/files/how-to-get-a-lot-of-robux_GM431946152.pdf
- https://wenshan.com.tw/upload/files/free-robux-hack_GM431946152.pdf
- https://wenshan.com.tw/upload/files/free-robux-hack-generator_GM431946152.pdf
- https://wenshan.com.tw/upload/files/minecraft-auto-miner-hack_GM479516143.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_off000049d9.bin` `c1f241b20cb9d9e10a7b81c9a9f5ca07b0cec6ad77737119974ccbfcceaf6196`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x49D9	25892 bytes
`font_01_sfnt_off000083a8.bin` `6a2016292d17d9aaf1e0d87e545c10598fd7abdcc13ac554dca2afbc97290a4f`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x83A8	18340 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.