PDF malware analysis — malicious · 421768764c67cecc

MALICIOUS

PDF

45.2 KB Created: 2021-06-03 11:04:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 6a791215f343f275ec3561f13c1fd334 SHA-1: 0a310500f0f8185d4c29cb7f815561da0f0a9cfa SHA-256: 421768764c67ceccbf50afc9bb7dadaa8a09da165c8cd9099bce00d85860c570

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The sample is a PDF that displays a fake CAPTCHA or human verification prompt to trick the user into clicking a link. This link, 'https://netcdn.online/app/431946152/is-there-a-way-to-get-free-robux-game-hack', likely leads to the download of a second-stage payload. The ML classifier strongly flagged this PDF as malicious.

Machine Learning

Nyx PDF Classifier malicious score 0.9865

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.online/app/431946152/is-there-a-way-to-get-free-robux-game-hack
- https://digilib.stieama.ac.id/repository/how-to-get-free-roblox-premium_GM431946152.pdf
- https://digilib.stieama.ac.id/repository/is-minecraft-education-edition-free_GM479516143.pdf
- https://digilib.stieama.ac.id/repository/coin-master-free-spins-heaven_GM406889139.pdf
- https://digilib.stieama.ac.id/repository/spin-free-coin-master_GM406889139.pdf
- https://digilib.stieama.ac.id/repository/roblox-speed-hack_GM431946152.pdf
- https://digilib.stieama.ac.id/repository/robux-earning-sites_GM431946152.pdf
- https://digilib.stieama.ac.id/repository/coin-master-card-collection-hack-2021_GM406889139.pdf
- https://digilib.stieama.ac.id/repository/hack-coin-pro-coin-master_GM406889139.pdf
- https://digilib.stieama.ac.id/repository/coin-master-cheats-and-hacks_GM406889139.pdf
- https://digilib.stieama.ac.id/repository/get-free-tiktok-likes_GM835599320.pdf
- https://digilib.stieama.ac.id/repository/how-to-get-minecraft-for-free-on-computer_GM479516143.pdf
- https://digilib.stieama.ac.id/repository/roblox-report-hacker_GM431946152.pdf
- https://digilib.stieama.ac.id/repository/coin-master-daily-free-spins-blog_GM406889139.pdf
- https://digilib.stieama.ac.id/repository/coin-master-2021-free-spins-link-blogspot_GM406889139.pdf
- https://digilib.stieama.ac.id/repository/coin-master-hack-app-download-free_GM406889139.pdf
- https://digilib.stieama.ac.id/repository/coin-master-unlimited-spin-hack-mod-apk_GM406889139.pdf
- https://digilib.stieama.ac.id/repository/coin-master-free-spins-hack-but-no-surveys_GM406889139.pdf
- https://digilib.stieama.ac.id/repository/give-free-robux_GM431946152.pdf
- https://digilib.stieama.ac.id/repository/roblox-hack-generator_GM431946152.pdf
- https://digilib.stieama.ac.id/repository/free-robux-on-phone_GM431946152.pdf
- http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_004_off00004fef.bin` `7d76ece34e0e9fce3f04a3b2aedeec2263cd4e48516ee9c15544b7f0d1786a8e`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4FEF	26112 bytes
`font_01_sfnt_off00008c20.bin` `e2ca2daecae93cd27ff1d51a172310d30bada5b25af9f9600d3ad780ee102f76`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8C20	18892 bytes

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