PDF malware analysis — malicious · 06cb6317fa94d2f1

MALICIOUS

PDF

44.5 KB Created: 2021-05-12 21:33:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 12989f8c8db1e012b5f8faf599c3874b SHA-1: b4e2b9a27dfb53c6bf2548c5d51b45aae3b579fb SHA-256: 06cb6317fa94d2f1286284f098af6483bcbbde1e04b17151a3b6599587747f62

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains a fake CAPTCHA lure, directing users to click on external URLs such as 'https://netcdn.xyz/app/431946152/free-robux-reddit-game-hack'. This suggests an attempt to trick users into downloading a secondary payload or visiting a malicious site. The ML classifier also strongly indicated maliciousness.

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/free-robux-reddit-game-hack
- https://itv-grabungen.de/images/coin-master-free-gift-links-2021_GM406889139.pdf
- https://itv-grabungen.de/images/roblox-robux-hack_GM431946152.pdf
- https://itv-grabungen.de/images/hack-spin-coin-master-2021_GM406889139.pdf
- https://itv-grabungen.de/images/blox-land-free-robux_GM431946152.pdf
- https://itv-grabungen.de/images/free-spins-coin-master-cheats_GM406889139.pdf
- https://itv-grabungen.de/images/free-rewards-coin-master_GM406889139.pdf
- https://itv-grabungen.de/images/coin-master-hacks-no-surveys_GM406889139.pdf
- https://itv-grabungen.de/images/coin-master-free-spins-deutsch-download-ios-link_GM406889139.pdf
- https://itv-grabungen.de/images/coin-master-hack-2021-free_GM406889139.pdf
- https://itv-grabungen.de/images/free-roblox-adopt-me-accounts_GM431946152.pdf
- https://itv-grabungen.de/images/get-coin-master-hack_GM406889139.pdf
- https://itv-grabungen.de/images/coin-master-free-cards-and-spin-link_GM406889139.pdf
- https://itv-grabungen.de/images/coin-master-free-coins-and-spins-link-2021_GM406889139.pdf
- https://itv-grabungen.de/images/best-minecraft-hacks_GM479516143.pdf
- https://itv-grabungen.de/images/free-minecraft-account-and-password-generator_GM479516143.pdf
- https://itv-grabungen.de/images/how-to-hack-roblox-accounts-2021_GM431946152.pdf
- https://itv-grabungen.de/images/robux-hack-free-robux_GM431946152.pdf
- https://itv-grabungen.de/images/coin-master-hacks-xyz_GM406889139.pdf
- https://itv-grabungen.de/images/how-to-hack-roblox-games_GM431946152.pdf
- https://itv-grabungen.de/images/free-spins-coin-master-links-no-human-verification_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_off00004a95.bin` `4ec4517a46021f988cfaca4c33c5fca40835ac47aa2fdaad323a62a3134c1573`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4A95	28912 bytes
`font_01_sfnt_off00008b2c.bin` `c557a72efce44f866a9d9d033701dfd5e052f904d36d096978818f2976e16735`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8B2C	18412 bytes

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