PDF malware analysis — malicious · 7215902b2bcb202e

MALICIOUS

PDF

48.5 KB Created: 2021-06-01 00:43:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 90038563efd6372ae2553599f0bf2d0a SHA-1: 1c8704d4cc253bbb99ebf4b70c19c0a8f6add38e SHA-256: 7215902b2bcb202ecbf8f274a2ecb766a2bce57204d2b3c31ab6656c4a644049

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The sample is a PDF document that displays a fake CAPTCHA or human verification prompt to trick users into performing an action. It contains multiple embedded URLs, including one pointing to a potential download hosted on netcdn.xyz, suggesting a lure for users to download malicious content. The document's content and heuristics indicate a phishing or scam attempt.

Machine Learning

Nyx PDF Classifier malicious score 0.9796

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/win-2021-free-robux-game-hack
- https://taxandmore.nl/wp-content/uploads/fsqm-files/free-robux-no-verification_GM431946152.pdf
- https://taxandmore.nl/wp-content/uploads/fsqm-files/download-minecraft-free-hiapphere_GM479516143.pdf
- https://taxandmore.nl/wp-content/uploads/fsqm-files/free-robux-roblox-promo-codes_GM431946152.pdf
- https://taxandmore.nl/wp-content/uploads/fsqm-files/free-robux-from-apps_GM431946152.pdf
- https://taxandmore.nl/wp-content/uploads/fsqm-files/coin-master-free_GM406889139.pdf
- https://taxandmore.nl/wp-content/uploads/fsqm-files/roblox-free-robux-codes_GM431946152.pdf
- https://taxandmore.nl/wp-content/uploads/fsqm-files/minecraft-pe-free_GM479516143.pdf
- https://taxandmore.nl/wp-content/uploads/fsqm-files/free-robux-gift-card-codes_GM431946152.pdf
- https://taxandmore.nl/wp-content/uploads/fsqm-files/can-i-get-minecraft-for-free_GM479516143.pdf
- https://taxandmore.nl/wp-content/uploads/fsqm-files/master-coin-free-spin_GM406889139.pdf
- https://taxandmore.nl/wp-content/uploads/fsqm-files/how-to-hack-to-get-robux_GM431946152.pdf
- https://taxandmore.nl/wp-content/uploads/fsqm-files/how-to-hack-roblox-accounts-2021-easy_GM431946152.pdf
- https://taxandmore.nl/wp-content/uploads/fsqm-files/codes-to-get-free-robux_GM431946152.pdf
- https://taxandmore.nl/wp-content/uploads/fsqm-files/free-spins-from-coin-master_GM406889139.pdf
- https://taxandmore.nl/wp-content/uploads/fsqm-files/minecraft-server-hacks_GM479516143.pdf
- https://taxandmore.nl/wp-content/uploads/fsqm-files/haktuts-coin-master-free-spin-link_GM406889139.pdf
- https://taxandmore.nl/wp-content/uploads/fsqm-files/coin-master-free-spin-codes_GM406889139.pdf
- https://taxandmore.nl/wp-content/uploads/fsqm-files/coin-master-daily-free-spins-and-coins_GM406889139.pdf
- https://taxandmore.nl/wp-content/uploads/fsqm-files/how-to-free-robux_GM431946152.pdf
- https://taxandmore.nl/wp-content/uploads/fsqm-files/play-minecraft-for-free_GM479516143.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_off00005288.bin` `773533baeb95262b40fc5dac7e3429e5b8a9824a4081bd2a2d0003c7245fe07d`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x5288	25744 bytes
`font_01_sfnt_off00008cd8.bin` `40b61f8938bd710dc29dc58ba3fde91c245a6a69596ec569b4d27c769ca417cf`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8CD8	3884 bytes
`font_02_sfnt_off00009980.bin` `9cbfe5446a8850a046d5d0c89c59723a96744dcb07e24383e58b6458b803e3df`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9980	18736 bytes

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