PDF malware analysis — malicious · afdb1030fa2c3879

MALICIOUS

PDF

44.4 KB Created: 2021-06-03 21:25:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 7ce0119c14c99602a761f03f1ffee5ad SHA-1: c8b05873e8613d60aaa2debfb2dba6d8701770ed SHA-256: afdb1030fa2c3879118c8f10b1b095fe6ea136ce74c62ec1908887d3c4ce3009

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a fake CAPTCHA lure, designed to trick users into interacting with a malicious link. The embedded URL points to a site offering 'free Robux', a common lure for gaming-related scams. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

Nyx PDF Classifier malicious score 0.9865

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.online/app/431946152/how-to-get-free-robux-on-mobile-game-hack
- http://e-lib.smaxaverius5.sch.id/repository/free-robux-kid-friendly-no-human-verification_GM431946152.pdf
- http://e-lib.smaxaverius5.sch.id/repository/how-to-get-free-cards-in-coin-master_GM406889139.pdf
- http://e-lib.smaxaverius5.sch.id/repository/coin-master-free-spins-and-coins-group_GM406889139.pdf
- http://e-lib.smaxaverius5.sch.id/repository/free-robux-without-human-verification-real_GM431946152.pdf
- http://e-lib.smaxaverius5.sch.id/repository/how-do-i-get-free-coins-on-coin-master_GM406889139.pdf
- http://e-lib.smaxaverius5.sch.id/repository/how-do-u-get-free-robux-2021_GM431946152.pdf
- http://e-lib.smaxaverius5.sch.id/repository/pokemon-go-free-install_GM1094591345.pdf
- http://e-lib.smaxaverius5.sch.id/repository/coin-drop-master-free_GM406889139.pdf
- http://e-lib.smaxaverius5.sch.id/repository/minecraft-toolbox-premium-apk_GM479516143.pdf
- http://e-lib.smaxaverius5.sch.id/repository/minecraft-pe-hacks-2021_GM479516143.pdf
- http://e-lib.smaxaverius5.sch.id/repository/how-to-get-free-robux-games_GM431946152.pdf
- http://e-lib.smaxaverius5.sch.id/repository/free-daily-spins-coin-master-2021_GM406889139.pdf
- http://e-lib.smaxaverius5.sch.id/repository/minecraft-115-2-hacks_GM479516143.pdf
- http://e-lib.smaxaverius5.sch.id/repository/today-free-spin-coin-master_GM406889139.pdf
- http://e-lib.smaxaverius5.sch.id/repository/coin-master-free-cards-link_GM406889139.pdf
- http://e-lib.smaxaverius5.sch.id/repository/coin-master-coins-free_GM406889139.pdf
- http://e-lib.smaxaverius5.sch.id/repository/roblox-rules_GM431946152.pdf
- http://e-lib.smaxaverius5.sch.id/repository/free-robux-redeem-codes_GM431946152.pdf
- http://e-lib.smaxaverius5.sch.id/repository/free-robux-hacks-no-verification_GM431946152.pdf
- http://e-lib.smaxaverius5.sch.id/repository/coinmaster-com_GM406889139.pdf
- http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_004_off000051da.bin` `ada28f4da63cac0e8f0b9293b3cbdfaec757d500041e37eba14bc05ad0a77c3e`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x51DA	24516 bytes
`font_01_sfnt_off000089ed.bin` `54aa4755d3d4fcbd00d11f20b69d4376192dec0a97bdc1376cf216d73564a968`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x89ED	18672 bytes

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