PDF malware analysis — malicious · c96d56de1d40d0c2

MALICIOUS

PDF

34.0 KB Created: 2021-07-06 03:30:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 48c3634ff30a9ad34cc59f36b4695c1c SHA-1: 4c5d2ab94ebc40aa7a872ed32a986c378900e469 SHA-256: c96d56de1d40d0c2abeed0a474f9e561d96244f4552f39131fe71b35bc25f3bc

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document exhibits characteristics of a lure, presenting a fake CAPTCHA to trick users into downloading an application from the embedded URL. The document body and extracted URLs suggest a theme of 'free game hacks' or 'in-game currency', common pretexts for malware distribution. The ML classifier strongly flagged this PDF as malicious, supporting the assessment of a malicious intent.

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.tw/app/479516143/minecraft-free-ios-no-verification-game-hack
- https://c2o-library.net/catalog/repository/free-robux-gen-no-verification_GM431946152.pdf
- https://c2o-library.net/catalog/repository/code-for-roblox-robx-hack_GM431946152.pdf
- https://c2o-library.net/catalog/repository/how-to-get-free-robux-no-builders-club_GM431946152.pdf
- https://c2o-library.net/catalog/repository/roblox-royale-high-cheats-for-diamonds-2021-on-xbox-one_GM431946152.pdf
- https://c2o-library.net/catalog/repository/robux-matchcomfree-robux_GM431946152.pdf
- https://c2o-library.net/catalog/repository/play-minecraft-free-online-no-download_GM479516143.pdf
- https://c2o-library.net/catalog/repository/bux-life-free-robux-codes_GM431946152.pdf
- https://c2o-library.net/catalog/repository/infant-roblox-free-hack_GM431946152.pdf
- https://c2o-library.net/catalog/repository/orewards-com-free-robux_GM431946152.pdf
- https://c2o-library.net/catalog/repository/robuxy-com-free-robux_GM431946152.pdf
- https://c2o-library.net/catalog/repository/free-money-codes-for-roblox_GM431946152.pdf
- https://c2o-library.net/catalog/repository/how-to-get-free-clothes-on-roblox-2021_GM431946152.pdf
- https://c2o-library.net/catalog/repository/free-robux-without-verification_GM431946152.pdf
- https://c2o-library.net/catalog/repository/best-tricks-co-robux_GM431946152.pdf
- https://c2o-library.net/catalog/repository/safe-free-robux-generstor_GM431946152.pdf
- https://c2o-library.net/catalog/repository/how-to-hack-coin-master-without-root_GM406889139.pdf
- https://c2o-library.net/catalog/repository/free-cute-roblox-faces_GM431946152.pdf
- https://c2o-library.net/catalog/repository/how-do-you-get-free-daily-spins-on-coin-master_GM406889139.pdf
- https://c2o-library.net/catalog/repository/how-do-you-hack-minecraft_GM479516143.pdf
- https://c2o-library.net/catalog/repository/dbor-roblox-hack-v3rmillion_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_off0000308f.bin` `534ad8d51d6d5dee277573c516d91de68560da2f8209b8b7a32ef61e67eac804`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x308F	22480 bytes
`font_01_sfnt_off0000629e.bin` `9921e29242a30a87c239e4842ad7b287d420a62858cff22e2e8107af17a37070`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x629E	18132 bytes

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