PDF malware analysis — malicious · 35394cfabaf32690

MALICIOUS

PDF

43.7 KB Created: 2021-05-16 15:45:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 8eea5b56c8af947a73d4c04cf93e6023 SHA-1: 20c8ce03835ed698bd15738ea322c9fc100a53ad SHA-256: 35394cfabaf3269041f612164ca8428d5630708dddc2da5f1c689d2a4638411a

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 to trick users into interacting with a malicious link. The embedded URL, https://netcdn.xyz/app/406889139/free-gold-cards-coin-master-game-hack, likely leads to a second-stage payload download. While no scripts were explicitly extracted, the PDF structure and heuristics suggest it's designed to exploit user interaction for malicious purposes.

Machine Learning

Nyx PDF Classifier malicious score 0.9969

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/406889139/free-gold-cards-coin-master-game-hack
- http://meisterhaus-guterl.de/images/oprewards-login_GM431946152.pdf
- http://meisterhaus-guterl.de/images/free-roblox-accounts-with-robux-that-work-2021_GM431946152.pdf
- http://meisterhaus-guterl.de/images/how-to-hack-to-get-robux_GM431946152.pdf
- http://meisterhaus-guterl.de/images/coin-master-hack-pro-gamers_GM406889139.pdf
- http://meisterhaus-guterl.de/images/hack-a-game_GM431946152.pdf
- http://meisterhaus-guterl.de/images/coin-master-free-coins-and-spins-daily_GM406889139.pdf
- http://meisterhaus-guterl.de/images/how-to-get-free-robux-easy-no-download_GM431946152.pdf
- http://meisterhaus-guterl.de/images/robux-survey_GM431946152.pdf
- http://meisterhaus-guterl.de/images/free-robux-kid-friendly_GM431946152.pdf
- http://meisterhaus-guterl.de/images/is-minecraft-free-on-nintendo-switch_GM479516143.pdf
- http://meisterhaus-guterl.de/images/real-robux-generator-2021_GM431946152.pdf
- http://meisterhaus-guterl.de/images/sites-to-get-free-robux_GM431946152.pdf
- http://meisterhaus-guterl.de/images/roblox-free-roblox_GM431946152.pdf
- http://meisterhaus-guterl.de/images/can-i-hack-coin-master-with-lucky-patcher_GM406889139.pdf
- http://meisterhaus-guterl.de/images/roblox-avatar-free_GM431946152.pdf
- http://meisterhaus-guterl.de/images/how-to-hack-coin-master-spin-in-hindi_GM406889139.pdf
- http://meisterhaus-guterl.de/images/how-to-get-free-spins-on-coin-master-without-waiting_GM406889139.pdf
- http://meisterhaus-guterl.de/images/free-coin-master-coins-and-spins_GM406889139.pdf
- http://meisterhaus-guterl.de/images/free-roblox-promo-codes-for-robux_GM431946152.pdf
- http://meisterhaus-guterl.de/images/show-me-how-to-get-free-robux_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_off00004a45.bin` `d99e7bcf243fb9593d3f667578668570ed9e0d02c276c89154e13db3e3bab722`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4A45	28408 bytes
`font_01_sfnt_off000089c1.bin` `e7d6a33110c05f2f7358e31e331cf325c9b09bbae5ece44b659e3c4bfc76bc90`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x89C1	17960 bytes

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