PDF malware analysis — malicious · 6b9649b0fc8e5d66

MALICIOUS

PDF

44.1 KB Created: 2021-05-14 13:28:07 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 61c48460656279c08df0a63d545b5d7b SHA-1: 6d5b55a756dfb9f9dcb7233e440a9ab1ebc485cc SHA-256: 6b9649b0fc8e5d66215f4eb22b89c1aa8861d8b8297e7b667c90727ecba6f268

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document displays a fake CAPTCHA or human verification prompt, a common social engineering tactic to trick users into interacting with malicious content. It also contains numerous embedded URLs, including one pointing to 'netcdn.xyz', which likely serve as lures to download further malicious content. The document's content and heuristics suggest a phishing or scam attempt, possibly related to game hacks or cheats.

Machine Learning

Nyx PDF Classifier malicious score 0.9648

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-coin-spin-coin-master-game-hack
- http://baofrance.com/images/coin-master-35-16-hack-apk_GM406889139.pdf
- http://baofrance.com/images/roblox-hack-codes_GM431946152.pdf
- http://baofrance.com/images/get-minecraft-for-free_GM479516143.pdf
- http://baofrance.com/images/free-robux-no-human-verify_GM431946152.pdf
- http://baofrance.com/images/how-to-get-free-robux-for-free_GM431946152.pdf
- http://baofrance.com/images/sb-game-hacker-coin-master_GM406889139.pdf
- http://baofrance.com/images/mcpe-hacks_GM479516143.pdf
- http://baofrance.com/images/roblox-arsenal-hack-script-pastebin_GM431946152.pdf
- http://baofrance.com/images/80-free-spins-coin-master_GM406889139.pdf
- http://baofrance.com/images/how-to-get-free-robux-no-verification-2021_GM431946152.pdf
- http://baofrance.com/images/free-coins-coin-master-blog_GM406889139.pdf
- http://baofrance.com/images/how-to-get-free-robux-without-verification_GM431946152.pdf
- http://baofrance.com/images/coin-master-hack-extension_GM406889139.pdf
- http://baofrance.com/images/how-to-get-free-robux-in-2021_GM431946152.pdf
- http://baofrance.com/images/legit-coin-master-hack-october-2021_GM406889139.pdf
- http://baofrance.com/images/how-to-get-free-robux-generator_GM431946152.pdf
- http://baofrance.com/images/coin-master-hack-activegamer_GM406889139.pdf
- http://baofrance.com/images/free-robux-app_GM431946152.pdf
- http://baofrance.com/images/best-roblox-hacks_GM431946152.pdf
- http://baofrance.com/images/coin-master-hack-without-verification-ios_GM406889139.pdf
- http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_003_off0000494a.bin` `9d8219042d6cfe5589c3dccf1aae7475f93d48c72f89342a395fdfcf4acc1347`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x494A	24780 bytes
`font_01_sfnt_off00008108.bin` `c1a618813a64314343402b2ec738fc11c4c912460a4c7ae3029924d2f9a229cd`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8108	2896 bytes
`font_02_sfnt_off00008aed.bin` `7cdd316e38b966dc4c029fefa3365f61ff88a2ebb5f677d1a08d60a6ba94bc95`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8AED	17884 bytes

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