PDF malware analysis — malicious · 852af1639a5f8986

MALICIOUS

PDF

47.6 KB Created: 2021-05-13 23:30:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: dd01645d7ffc1ed6fdf773ced1a4f85d SHA-1: ecfa400cae7bc9f83e019a542a495915dc3fc52e SHA-256: 852af1639a5f89869dcaba7b6288a010907ba438201e56cab43f4499cfd496cf

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains a fake CAPTCHA lure, designed to trick users into interacting with the document. It also embeds an external URI pointing to a suspicious domain, likely intended to download a second-stage payload. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

Nyx PDF Classifier malicious score 0.9977

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/free-robux-gen-game-hack
- http://www.alsultantrading.ae/userfiles/files/free-coins-and-spins-2021_GM406889139.pdf
- http://www.alsultantrading.ae/userfiles/files/free-robux-generator-for-roblox-2021_GM431946152.pdf
- http://www.alsultantrading.ae/userfiles/files/coin-master-hack-pc-2021_GM406889139.pdf
- http://www.alsultantrading.ae/userfiles/files/free-coin-master-game_GM406889139.pdf
- http://www.alsultantrading.ae/userfiles/files/minecraft-hack-client-18-9_GM479516143.pdf
- http://www.alsultantrading.ae/userfiles/files/free-robux-download_GM431946152.pdf
- http://www.alsultantrading.ae/userfiles/files/get-free-robux-gg_GM431946152.pdf
- http://www.alsultantrading.ae/userfiles/files/free-spins_GM406889139.pdf
- http://www.alsultantrading.ae/userfiles/files/how-to-hack-into-someones-roblox-account_GM431946152.pdf
- http://www.alsultantrading.ae/userfiles/files/free-robux-no-human-verification-or-survey-2021_GM431946152.pdf
- http://www.alsultantrading.ae/userfiles/files/free-robux-generator-no-human-verification-or-survey-2021_GM431946152.pdf
- http://www.alsultantrading.ae/userfiles/files/how-to-get-free-robux-on-roblox_GM431946152.pdf
- http://www.alsultantrading.ae/userfiles/files/blox-land-free-robux_GM431946152.pdf
- http://www.alsultantrading.ae/userfiles/files/get-roebucks-com_GM431946152.pdf
- http://www.alsultantrading.ae/userfiles/files/coin-master-link_GM406889139.pdf
- http://www.alsultantrading.ae/userfiles/files/coin-master-hack-tool-v1-9-pc_GM406889139.pdf
- http://www.alsultantrading.ae/userfiles/files/minecraft-ore-finder-mod_GM479516143.pdf
- http://www.alsultantrading.ae/userfiles/files/hack-coin-master-free_GM406889139.pdf
- http://www.alsultantrading.ae/userfiles/files/free-spins-coin-master-app_GM406889139.pdf
- http://www.alsultantrading.ae/userfiles/files/coin-master-daily-free-coins-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_off0000481c.bin` `52d6ad320accfec0bc165aa7ded9906874405c0a22109ebcd630b653a4c2d2bd`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x481C	36916 bytes
`font_01_sfnt_off0000990c.bin` `b822dfaf3b200acc051a64c4c7a9b8bc6e1a7e93aa10f3c17b5d396512734dd6`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x990C	18012 bytes

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