PDF malware analysis — malicious · 70b00118e0571275

MALICIOUS

PDF

45.5 KB Created: 2021-06-09 13:48:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 091ab394d510b1e6010fa506d6b3b33d SHA-1: e43cc9850b6ad093203a428a799bde553233495b SHA-256: 70b00118e0571275160f883435427715facab0dfb1a61e61ee5baf6f50d3e1b1

122 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The document presents a fake CAPTCHA or human verification prompt, a common lure to trick users into clicking malicious links. It also contains multiple embedded URLs, including one pointing to a 'roblox-elemental-battlegrounds-diamond-hack-game-hack', suggesting a scam or malware distribution attempt. The ML classifier also flagged this PDF as malicious.

Machine Learning

Nyx PDF Classifier malicious score 0.9864

Heuristics 5

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
MFA / one-time-code harvesting lure high SE_MFA_LURE

Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
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.tw/app/431946152/roblox-elemental-battlegrounds-diamond-hack-game-hack
- https://lesegais.ru/images/coin-master-unlimited-spins_GM406889139.pdf
- https://lesegais.ru/images/150-free-spins-coin-master_GM406889139.pdf
- https://lesegais.ru/images/rbxoffers-com-free-robux_GM431946152.pdf
- https://lesegais.ru/images/minecraft-free-demo_GM479516143.pdf
- https://lesegais.ru/images/how-do-you-get-free-robux_GM431946152.pdf
- https://lesegais.ru/images/coin-master-free-spin-and-coin_GM406889139.pdf
- https://lesegais.ru/images/coin-master-400-spin-link-hack_GM406889139.pdf
- https://lesegais.ru/images/free-spins-and-coins-on-coin-master_GM406889139.pdf
- https://lesegais.ru/images/roblox-hack-site_GM431946152.pdf
- https://lesegais.ru/images/coin-master-attack-madness-hack_GM406889139.pdf
- https://lesegais.ru/images/free-executors-for-roblox_GM431946152.pdf
- https://lesegais.ru/images/coin-master-free-spins-link-download_GM406889139.pdf
- https://lesegais.ru/images/how-to-get-minecraft-for-free-on-xbox-one_GM479516143.pdf
- https://lesegais.ru/images/daily-free-spins-on-coin-master_GM406889139.pdf
- https://lesegais.ru/images/coin-master-daily-spin-link-app_GM406889139.pdf
- https://lesegais.ru/images/coin-master-hacks-that-work_GM406889139.pdf
- https://lesegais.ru/images/how-to-become-a-hacker-in-roblox_GM431946152.pdf
- https://lesegais.ru/images/minecraft-reach-hack_GM479516143.pdf
- https://lesegais.ru/images/original-roblox_GM431946152.pdf
- https://lesegais.ru/images/how-to-change-your-name-on-roblox-for-free_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_off000050a3.bin` `929c2abc1eeb69b41642b7df03ed41bbed1567cc27f9c357e064abffd1f44473`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x50A3	25996 bytes
`font_01_sfnt_off00008bcd.bin` `d7c0008f6abab7d4006666b58c78ebd87f0aa92a7fdd9ba271646e6ad92179c8`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8BCD	19436 bytes

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