PDF malware analysis — malicious · 62379bae0fbb4230

MALICIOUS

PDF

34.4 KB Created: 2021-06-30 06:25:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: e1dee5ed527e1eb07aad6691a30e8d73 SHA-1: 523e03dcc94a748cc87c39ce35670b1d61731ac2 SHA-256: 62379bae0fbb423079fbbe3f021c8c644afa1ddde05dcf97eade575c15fcac61

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The document displays a fake CAPTCHA to lure the user into clicking a link, which is a common social engineering tactic. The embedded URL, http://netcdn.co/app/431946152/roblox-gui-hacks-game-hack, likely leads to a malicious download or exploit. 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 http://netcdn.co/app/431946152/roblox-gui-hacks-game-hack
- https://anshingtek.com.tw/image/data/files/how-to-get-free-shirts-on-roblox_GM431946152.pdf
- https://anshingtek.com.tw/image/data/files/how-to-make-free-robux_GM431946152.pdf
- https://anshingtek.com.tw/image/data/files/free-unlimited-coin-master-online-tool_GM406889139.pdf
- https://anshingtek.com.tw/image/data/files/robloxlover69-how-to-get-free-robux_GM431946152.pdf
- https://anshingtek.com.tw/image/data/files/free-daily-spins-coin-master-2021_GM406889139.pdf
- https://anshingtek.com.tw/image/data/files/coin-master-cheats-free-spins_GM406889139.pdf
- https://anshingtek.com.tw/image/data/files/pokemon-go-free-vs-ultra_GM1094591345.pdf
- https://anshingtek.com.tw/image/data/files/how-to-get-free-coins-on-coin-master_GM406889139.pdf
- https://anshingtek.com.tw/image/data/files/how-to-get-free-robux_GM431946152.pdf
- https://anshingtek.com.tw/image/data/files/coinmaster-spin-ml_GM406889139.pdf
- https://anshingtek.com.tw/image/data/files/free-robux-generator-no-survey-no-download-no-human-verification_GM431946152.pdf
- https://anshingtek.com.tw/image/data/files/roblox-free-robux-hack_GM431946152.pdf
- https://anshingtek.com.tw/image/data/files/1b-robux-hack_GM431946152.pdf
- https://anshingtek.com.tw/image/data/files/free-minecraft-texture-packs-java_GM479516143.pdf
- https://anshingtek.com.tw/image/data/files/how-to-get-free-knives-in-roblox-assassin-2021_GM431946152.pdf
- https://anshingtek.com.tw/image/data/files/minecraft-hacks-list_GM479516143.pdf
- https://anshingtek.com.tw/image/data/files/free-robux-no-human-verification-survey_GM431946152.pdf
- https://anshingtek.com.tw/image/data/files/hack-crack-for-coin-master-currency_GM406889139.pdf
- https://anshingtek.com.tw/image/data/files/assassin-cheat-codes-roblox_GM431946152.pdf
- https://anshingtek.com.tw/image/data/files/how-to-get-free-outfits-on-roblox_GM431946152.pdf
- http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00003080.bin` `e01d366c4cd4ab6562876610c761f15b74cf8d231be9acc284f6bec56267983b`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3080	22208 bytes
`font_01_sfnt_off000061ee.bin` `3e1073ad3d8895b19d94348de47e4bf8d6149899a6d9327be95ad7bc25176258`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x61EE	18916 bytes

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