PDF malware analysis — malicious · 087fb11b176bb5f6

MALICIOUS

PDF

47.8 KB Created: 2021-05-16 10:21:41 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 3ba648a80eb7066b365899d7a5eb9668 SHA-1: 1be43a13b78ad9e55e2816bb6262112d43c1363c SHA-256: 087fb11b176bb5f6b8ae0f0c4238f11c98fe4efaa927c4fbdd60252ee6c82aec

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The document displays a fake CAPTCHA to lure the user into clicking a link, which is a common social engineering tactic. The embedded URL points to a resource that likely serves as a download for a malicious payload. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

Nyx PDF Classifier malicious score 0.9013

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/479516143/minecraft-menu-game-hack
- https://mawaridschools.com/uploaded_files/userfiles/files/coin-master-download-hack-ios_GM406889139.pdf
- https://mawaridschools.com/uploaded_files/userfiles/files/coin-master-golden-cards-hack_GM406889139.pdf
- https://mawaridschools.com/uploaded_files/userfiles/files/mcpe-master-hack-unlimited-coins-apk_GM406889139.pdf
- https://mawaridschools.com/uploaded_files/userfiles/files/free-robux-roblox-promo-codes_GM431946152.pdf
- https://mawaridschools.com/uploaded_files/userfiles/files/coin-master-coins-free_GM406889139.pdf
- https://mawaridschools.com/uploaded_files/userfiles/files/robux-hack-2021_GM431946152.pdf
- https://mawaridschools.com/uploaded_files/userfiles/files/free-robux-ad_GM431946152.pdf
- https://mawaridschools.com/uploaded_files/userfiles/files/free-shirt-roblox_GM431946152.pdf
- https://mawaridschools.com/uploaded_files/userfiles/files/master-coin-free-spin-daily_GM406889139.pdf
- https://mawaridschools.com/uploaded_files/userfiles/files/coin-master-hack-https-coinms-net_GM406889139.pdf
- https://mawaridschools.com/uploaded_files/userfiles/files/free-roblox-gift-card-codes-2021-unused_GM431946152.pdf
- https://mawaridschools.com/uploaded_files/userfiles/files/free-robux-please_GM431946152.pdf
- https://mawaridschools.com/uploaded_files/userfiles/files/free-robux-hack-2021_GM431946152.pdf
- https://mawaridschools.com/uploaded_files/userfiles/files/coin-master-spin-rewards_GM406889139.pdf
- https://mawaridschools.com/uploaded_files/userfiles/files/coin-master-32-hack-apk-download_GM406889139.pdf
- https://mawaridschools.com/uploaded_files/userfiles/files/coin-master-free-spins-link-hack_GM406889139.pdf
- https://mawaridschools.com/uploaded_files/userfiles/files/free-robux-codes-2021_GM431946152.pdf
- https://mawaridschools.com/uploaded_files/userfiles/files/free-robux-now_GM431946152.pdf
- https://mawaridschools.com/uploaded_files/userfiles/files/minecraft-free-trial_GM479516143.pdf
- https://mawaridschools.com/uploaded_files/userfiles/files/how-to-make-robux-on-roblox_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_003_off00004dbb.bin` `64eea3a61b78793f004d239397de95e395e4902c45b21bc1b2b9fe79c9c92f84`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4DBB	29284 bytes
`font_01_sfnt_off000090d9.bin` `3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x90D9	2840 bytes
`font_02_sfnt_off00009a8b.bin` `679a1d8f76460a115219f4f15c6f17ac3f2059c2b9f5df8a51dcf2988abe9cc5`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9A8B	17708 bytes

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