PDF malware analysis — malicious · 1fead33193ba0a60

MALICIOUS

PDF

43.3 KB Created: 2021-05-18 00:55:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 6529008b35125779092b877bd2fa9f1e SHA-1: 55e622bf9b6ba74ee0542b14b3f2ddbb19cde971 SHA-256: 1fead33193ba0a6024418efd7c705872caafc1114a030b96a4ea18743e1d542f

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document employs an advance-fee scam lure, specifically promising free Robux, to entice users to click on embedded links. The primary link, https://netcdn.xyz/app/431946152/free-robux-redeem-codes-2021-game-hack, likely leads to a download of a second-stage payload. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

Nyx PDF Classifier malicious score 0.9969

Heuristics 4

Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE

Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
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/free-robux-redeem-codes-2021-game-hack
- https://www.audev.com/images/free-robux-promo-codes-2021_GM431946152.pdf
- https://www.audev.com/images/rbx-place-free-robux_GM431946152.pdf
- https://www.audev.com/images/haktuts-coin-master-hack_GM406889139.pdf
- https://www.audev.com/images/coin-master-free-spins-2021_GM406889139.pdf
- https://audev.com/images/coin-master-free-spins-today-39_GM406889139.pdf
- https://audev.com/images/coin-master-free-spins-today-daily-links_GM406889139.pdf
- https://audev.com/images/my-roblox-account-was-hacked_GM431946152.pdf
- https://audev.com/images/minecraft-aimbot_GM479516143.pdf
- https://audev.com/images/how-to-get-free-robux_GM431946152.pdf
- https://audev.com/images/get-free-coin-master-coins_GM406889139.pdf
- https://audev.com/images/free-free-robux_GM431946152.pdf
- https://audev.com/images/free-spins-promo-code-for-coin-master_GM406889139.pdf
- https://www.audev.com/images/minecraft-free-exe_GM479516143.pdf
- https://audev.com/images/aimbot-exe-roblox_GM431946152.pdf
- https://audev.com/images/buy-robux-free_GM431946152.pdf
- https://www.audev.com/images/coin-master-free-spins-bit-ly_GM406889139.pdf
- https://audev.com/images/coin-master-hack-app-download-free_GM406889139.pdf
- https://www.audev.com/images/codes-to-get-free-robux_GM431946152.pdf
- https://audev.com/images/coin-master-free-spins-hack-iphone_GM406889139.pdf
- https://audev.com/images/coin-master-free-spins-whatsapp-link_GM406889139.pdf
- http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00004b1f.bin` `5b05784cc38e614936ae4d188b1932d568bc66481e99543e2dc9156684e0a07f`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x4B1F	24948 bytes
`font_01_sfnt_off00008503.bin` `835008e062f354a08c5cd285c30dce0b291468b55589a8f36d5d300bab70ed7b`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8503	18852 bytes

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