PDF malware analysis — malicious · 449a5d5ca6d3c840

MALICIOUS

PDF

43.7 KB Created: 2021-05-15 04:41:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 28021a33e5d3a01ab06648ce76513452 SHA-1: 4e8749eaf13b6123afa9903566322ea6698187b6 SHA-256: 449a5d5ca6d3c84059f93782e0e1696396bfbac289211978fa1a3794f1c65e76

142 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains a fake CAPTCHA lure, designed to trick users into interacting with the document. It also hosts a large number of external links, many of which point to SEO-optimized PDF files, suggesting a link farm or traffic redirection scheme. The primary URL, https://netcdn.xyz/app/406889139/free-spins-coin-master-links-no-human-verification-game-hack, is likely part of this scheme.

Machine Learning

Nyx PDF Classifier malicious score 0.9969

Heuristics 5

Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM

Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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/406889139/free-spins-coin-master-links-no-human-verification-game-hack
- http://w-i-r.de/images/_GM479516143.pdf
- http://w-i-r.de/images/free-ways-to-get-robux_GM431946152.pdf
- http://w-i-r.de/images/hack-xp-net-generators-coin-master_GM406889139.pdf
- http://w-i-r.de/images/free-robux-generator-no-survey_GM431946152.pdf
- http://w-i-r.de/images/free-robux-for-kids-no-verification_GM431946152.pdf
- http://w-i-r.de/images/how-to-get-free-robux-with-no-verification_GM431946152.pdf
- http://w-i-r.de/images/free-roblox-accounts-with-robux-that-work-2021_GM431946152.pdf
- http://w-i-r.de/images/how-to-install-minecraft-for-free_GM479516143.pdf
- http://w-i-r.de/images/get-free-robux-generator_GM431946152.pdf
- http://w-i-r.de/images/roblox-mobile-hack_GM431946152.pdf
- http://w-i-r.de/images/free-things-on-roblox_GM431946152.pdf
- http://w-i-r.de/images/how-to-hack-a-minecraft-server_GM479516143.pdf
- http://w-i-r.de/images/hack-para-coin-master-sin-verification_GM406889139.pdf
- http://w-i-r.de/images/coin-master-hack-version-download-ios_GM406889139.pdf
- http://w-i-r.de/images/hack-free-spin-coin-master_GM406889139.pdf
- http://w-i-r.de/images/coin-master-instagram-free-spins_GM406889139.pdf
- http://w-i-r.de/images/hacks-para-roblox_GM431946152.pdf
- http://w-i-r.de/images/how-to-hack-in-arsenal_GM431946152.pdf
- http://w-i-r.de/images/60-free-spins-coin-master_GM406889139.pdf
- http://w-i-r.de/images/coin-master-connection-lost-hack_GM406889139.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_off00004880.bin` `f35656e1459c47b0c9659a2318c52708063126327f0f6965959f1886723a8e34`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4880	30556 bytes
`font_01_sfnt_off000087a1.bin` `5a08ca623146824177ccf371c197f16efef4c40a95708a9224bf5d86e8191d65`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x87A1	18588 bytes

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