PDF malware analysis — malicious · 35c564483cc2d80b

MALICIOUS

PDF

50.1 KB Created: 2021-06-02 02:48:41 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: c6ddcee18040692c8c52f17c22ee4815 SHA-1: d27493787a104555662327521e0bdb56be54937f SHA-256: 35c564483cc2d80bbe529bc0595617555654699cbb6fa828c4aa81d72463cf5d

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The document displays a fake CAPTCHA to lure the user into clicking a malicious link, which is a common social engineering tactic. The presence of multiple download-related URLs suggests the document's primary purpose is to facilitate the download of a secondary payload. The ML classifier also flagged this PDF as malicious.

Machine Learning

Nyx PDF Classifier malicious score 0.9789

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/flood-escape-2-infinite-jump-roblox-hack-game-hack
- https://hundt-druck.de/wp-content/uploads/fsqm-files/hacks-to-get-free-robux_GM431946152.pdf
- https://hundt-druck.de/wp-content/uploads/fsqm-files/coin-master-hack-2021_GM406889139.pdf
- https://hundt-druck.de/wp-content/uploads/fsqm-files/minecraft-java-free-trial_GM479516143.pdf
- https://hundt-druck.de/wp-content/uploads/fsqm-files/free-robux-2021-legit-feb-unpatched-instantly-no-wait_GM431946152.pdf
- https://hundt-druck.de/wp-content/uploads/fsqm-files/roblox-valkyrie-free_GM431946152.pdf
- https://hundt-druck.de/wp-content/uploads/fsqm-files/free-robux-website_GM431946152.pdf
- https://hundt-druck.de/wp-content/uploads/fsqm-files/how-to-get-your-roblox-account-back-if-its-hacked_GM431946152.pdf
- https://hundt-druck.de/wp-content/uploads/fsqm-files/how-to-hack-someones-account-on-roblox_GM431946152.pdf
- https://hundt-druck.de/wp-content/uploads/fsqm-files/free-robux-december-hack-2021_GM431946152.pdf
- https://hundt-druck.de/wp-content/uploads/fsqm-files/free-robux-games-obby_GM431946152.pdf
- https://hundt-druck.de/wp-content/uploads/fsqm-files/roblox-com-avatar-free_GM431946152.pdf
- https://hundt-druck.de/wp-content/uploads/fsqm-files/roblox-its-free-trailer_GM431946152.pdf
- https://hundt-druck.de/wp-content/uploads/fsqm-files/how-to-hack-in-someones-account-on-roblox_GM431946152.pdf
- https://hundt-druck.de/wp-content/uploads/fsqm-files/roblox-high-school-how-to-fly-for-free_GM431946152.pdf
- https://hundt-druck.de/wp-content/uploads/fsqm-files/coin-master-free-spin-ml_GM406889139.pdf
- https://hundt-druck.de/wp-content/uploads/fsqm-files/how-to-hack-a-roblox-account-2021_GM431946152.pdf
- https://hundt-druck.de/wp-content/uploads/fsqm-files/coin-master-free-spins_GM406889139.pdf
- https://hundt-druck.de/wp-content/uploads/fsqm-files/free-robux-hack-2021_GM431946152.pdf
- https://hundt-druck.de/wp-content/uploads/fsqm-files/cheate-engine-addres-for-robux_GM431946152.pdf
- https://hundt-druck.de/wp-content/uploads/fsqm-files/free-robux-gift-card-codes_GM431946152.pdf
- http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_004_off000052f6.bin` `25dbd6d818271d593c57aced2e05d994491abce1666223f5f07020d46c94803f`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x52F6	28184 bytes
`font_01_sfnt_off00009371.bin` `02b35010e2614e3cc95ac6414c49295350c91fdfcc4b4cad27ffdbc10e80df7f`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9371	2912 bytes
`font_02_sfnt_off00009d6e.bin` `8fefe66458e12cbaeeec8b3101398e18a7aaa29de1ae4c0c842498258d7bc647`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9D6E	19608 bytes

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