PDF malware analysis — malicious · c450208ea351a5bf

MALICIOUS

PDF

43.3 KB Created: 2021-05-12 04:00:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: e4427ce63e3f0c94794a58b89b606b86 SHA-1: bcacaa1c035c121d7488a7e7560bd6eacba4deba SHA-256: c450208ea351a5bf42cbcc963b021e6f25c301aa04af98306133f28a94aa0e03

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 User Execution: Malicious Link

The document presents a fake CAPTCHA or human verification prompt, a common lure to trick users into interacting with malicious links. The embedded URLs, such as 'https://netcdn.xyz/app/431946152/how-to-get-free-robux-no-human-verification-2021-game-hack', likely lead to further malicious content or downloads. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

Nyx PDF Classifier malicious score 0.9969

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/431946152/how-to-get-free-robux-no-human-verification-2021-game-hack
- http://lib.mappifhui.org/repository/roblox-people-girl_GM431946152.pdf
- http://lib.mappifhui.org/repository/coin-master-homepage_GM406889139.pdf
- http://lib.mappifhui.org/repository/coin-master-free-spins-and-free-coins_GM406889139.pdf
- http://lib.mappifhui.org/repository/daily-free-spins-on-coin-master_GM406889139.pdf
- http://lib.mappifhui.org/repository/free-coin-master-hacks-no-verification-or-survey_GM406889139.pdf
- http://lib.mappifhui.org/repository/100-free-spins-for-coin-master_GM406889139.pdf
- http://lib.mappifhui.org/repository/robux-boost_GM431946152.pdf
- http://lib.mappifhui.org/repository/how-to-log-out-of-coin-master_GM406889139.pdf
- http://lib.mappifhui.org/repository/haktuts-coin-master-free-daily-spins_GM406889139.pdf
- http://lib.mappifhui.org/repository/coin-master-free-spins-link-no-verification-2021_GM406889139.pdf
- http://lib.mappifhui.org/repository/free-robux-now_GM431946152.pdf
- http://lib.mappifhui.org/repository/minecraft-for-free-apk_GM479516143.pdf
- http://lib.mappifhui.org/repository/tower-of-hell-roblox-hack_GM431946152.pdf
- http://lib.mappifhui.org/repository/free-minecraft-hosting_GM479516143.pdf
- http://lib.mappifhui.org/repository/is-there-any-way-to-get-free-robux_GM431946152.pdf
- http://lib.mappifhui.org/repository/how-to-win-free-robux_GM431946152.pdf
- http://lib.mappifhui.org/repository/coin-master-free-spins-generator-no-human-verification_GM406889139.pdf
- http://lib.mappifhui.org/repository/mcpe-hacks_GM479516143.pdf
- http://lib.mappifhui.org/repository/how-do-you-get-free-daily-spins-on-coin-master_GM406889139.pdf
- http://lib.mappifhui.org/repository/oprewards-robux_GM431946152.pdf
- http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_003_off000048f7.bin` `0ffbf9d7acf3a57603659ff56296a9cb50257c51627c831759feca73cfc8dd75`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x48F7	25100 bytes
`font_01_sfnt_off0000835a.bin` `dc7c459a90b1a398d2ee51f52972ed8a07904c77cd045887558a99bdb9823e3c`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x835A	19428 bytes

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