PDF malware analysis — malicious · 4138eb87a417aa83

MALICIOUS

PDF

44.5 KB Created: 2021-05-12 21:06:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: e8f498b4daab00655bdef607461dd1e4 SHA-1: 9585957edc74eab430c1dfac6d12296d2f6f4636 SHA-256: 4138eb87a417aa83e5a37751832479a198d1e6846cebdbd11844a5c0e98c6d04

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains a fake CAPTCHA lure, directing the user to click on an external URL. This URL likely leads to the download of a second-stage payload, as indicated by the ML classifier and the presence of multiple suspicious URLs. The document's content and heuristics suggest a social engineering tactic to trick users into executing malicious code.

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/robux-generator-no-human-verification-or-survey-game-hack
- http://huizentekoop-andalusie.nl/images/android-coin-master-hack-2021_GM406889139.pdf
- http://huizentekoop-andalusie.nl/images/roblox-royale-high-diamond-hack_GM431946152.pdf
- http://huizentekoop-andalusie.nl/images/coin-master-daily-free-spins-2021_GM406889139.pdf
- http://huizentekoop-andalusie.nl/images/coin-master-spin-ml_GM406889139.pdf
- http://huizentekoop-andalusie.nl/images/how-to-make-your-own-minecraft-server-for-free_GM479516143.pdf
- http://huizentekoop-andalusie.nl/images/how-to-get-free-robux-without-paying_GM431946152.pdf
- http://huizentekoop-andalusie.nl/images/free-roblox-wings_GM431946152.pdf
- http://huizentekoop-andalusie.nl/images/free-robux-co_GM431946152.pdf
- http://huizentekoop-andalusie.nl/images/haktuts-coin-master-free-spins_GM406889139.pdf
- http://huizentekoop-andalusie.nl/images/free-spins-for-coin-master-2021_GM406889139.pdf
- http://huizentekoop-andalusie.nl/images/coin-master-mod-apk-2021_GM406889139.pdf
- http://huizentekoop-andalusie.nl/images/free-robux-real_GM431946152.pdf
- http://huizentekoop-andalusie.nl/images/coin-master-hacking-news_GM406889139.pdf
- http://huizentekoop-andalusie.nl/images/free-rare-cards-for-coin-master_GM406889139.pdf
- http://huizentekoop-andalusie.nl/images/roblox-robux-generator-no-human-verification_GM431946152.pdf
- http://huizentekoop-andalusie.nl/images/download-minecraft-free-hiapphere_GM479516143.pdf
- http://huizentekoop-andalusie.nl/images/coin-master-free-snacks-link_GM406889139.pdf
- http://huizentekoop-andalusie.nl/images/free-robux-com-2021_GM431946152.pdf
- http://huizentekoop-andalusie.nl/images/roblox-free-draw_GM431946152.pdf
- http://huizentekoop-andalusie.nl/images/free-robux-websites-that-work_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_003_off00004c6c.bin` `fdc13f91c27f9b29f6baf2ffe86c76ce3d31b83846314735445fb88adc1e6496`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4C6C	26032 bytes
`font_01_sfnt_off00008978.bin` `fd03835d47fc92fdbc833168bdcaa48cf4fd012cdc930f071d53792c02192192`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8978	18988 bytes

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