PDF malware analysis — malicious · 606832a187ce1895

MALICIOUS

PDF

42.1 KB Created: 2021-05-17 14:02:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27

MD5: 6b62252af0eb2e0c05f8af455c695a22 SHA-1: c7b359a84914c52746e6d12118669cb225cac830 SHA-256: 606832a187ce1895c90ffee8f2fb8c35d3b7ce7a4bb3d0cf6102676a068e5b41

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a fake CAPTCHA lure, a common tactic to trick users into performing an action. It also embeds multiple URLs that likely lead to the download of malicious applications or further phishing content, such as 'apps-for-free-robux-game-hack'. The ML classifier strongly flagged this PDF as malicious, supporting the observed lures.

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 https://netcdn.xyz/app/431946152/apps-for-free-robux-game-hack PDF link annotation
- http://stpc.it/images/how-to-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
- http://stpc.it/images/free-spin-and-coin-blogspot_GM406889139.pdfIn PDF document text
- http://stpc.it/images/coin-master-hack-download-apk_GM406889139.pdfIn PDF document text
- http://stpc.it/images/daily-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
- http://stpc.it/images/coin-master-hack-2021_GM406889139.pdfIn PDF document text
- http://stpc.it/images/free-minecraft-domain_GM479516143.pdfIn PDF document text
- http://stpc.it/images/roblox-demon_GM431946152.pdfIn PDF document text
- http://stpc.it/images/free-spin-link_GM406889139.pdfIn PDF document text
- http://stpc.it/images/coin-master-hack-for-android_GM406889139.pdfIn PDF document text
- http://stpc.it/images/free-robux-websites-that-work_GM431946152.pdfIn PDF document text
- http://stpc.it/images/free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
- http://stpc.it/images/roblox-jailbreak-hack_GM431946152.pdfIn PDF document text
- http://stpc.it/images/coin-master-free-spins-link-2021-march_GM406889139.pdfIn PDF document text
- http://stpc.it/images/coin-game_GM406889139.pdfIn PDF document text
- http://stpc.it/images/coinmaster-links_GM406889139.pdfIn PDF document text
- http://stpc.it/images/minecraft-sign-up-free_GM479516143.pdfIn PDF document text
- http://stpc.it/images/minecraft-windows-10-edition-free_GM479516143.pdfIn PDF document text
- http://stpc.it/images/how-to-get-free-robux-easy-on-phone_GM431946152.pdfIn PDF document text
- http://stpc.it/images/free-online-minecraft-server_GM479516143.pdfIn PDF document text
- http://stpc.it/images/how-to-get-free-things-on-roblox_GM431946152.pdfIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_003_off0000478c.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x478C	25940 bytes
SHA-256: `b67d7a0943f3281de6ae58916366347fe19ec52bd5e81ecab42c380c8a599ad5`
`font_01_sfnt_off0000825b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x825B	18192 bytes
SHA-256: `b6bed13222f637b3eaa93fd3412fcfb5f097d091c9d6b8306e759aa57a7fe68b`

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