PDF malware analysis — malicious · 1beed381d1069bb5

MALICIOUS

PDF

47.7 KB Created: 2021-05-19 20:34:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 89eb510d4f5b2b3667f406f247fac869 SHA-1: 18e0bbcc229a9f8564b5f49169cfed9a301f7bba SHA-256: 1beed381d1069bb5b9b2d5794143ee3961a4384ad97c4557777a4556d28473b5

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, a common social engineering tactic to trick users into interacting with malicious content. It also embeds external URIs pointing to potentially malicious sites, suggesting an attempt to download further payloads. 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/431946152/apps-that-give-you-free-robux-game-hack
- https://www.campguru.co.za/images/blox-world-free-robux_GM431946152.pdf
- https://www.campguru.co.za/images/i-need-more-free-spins-on-coin-master_GM406889139.pdf
- https://www.campguru.co.za/images/free-roblox-premium_GM431946152.pdf
- https://www.campguru.co.za/images/how-to-get-a-lot-of-robux_GM431946152.pdf
- https://www.campguru.co.za/images/how-to-o-get-free-coin-master-spins_GM406889139.pdf
- https://www.campguru.co.za/images/coin-master-daily-free-spins-2021_GM406889139.pdf
- https://www.campguru.co.za/images/free-robux-meme_GM431946152.pdf
- https://www.campguru.co.za/images/coin-master-bonus_GM406889139.pdf
- https://www.campguru.co.za/images/minecraft-windows-10-edition-hacks_GM479516143.pdf
- https://www.campguru.co.za/images/hacks-to-get-free-robux_GM431946152.pdf
- https://www.campguru.co.za/images/how-to-get-a-refund-on-roblox-2021_GM431946152.pdf
- https://www.campguru.co.za/images/coin-master-hacksco_GM406889139.pdf
- https://www.campguru.co.za/images/robux-place-rewards_GM431946152.pdf
- https://www.campguru.co.za/images/jailbreak-script_GM431946152.pdf
- https://www.campguru.co.za/images/coin-master-daily-free-spins-and-coins-link_GM406889139.pdf
- https://www.campguru.co.za/images/oprewards-login_GM431946152.pdf
- https://www.campguru.co.za/images/free-minecraft-codes_GM479516143.pdf
- https://www.campguru.co.za/images/free-robux-generator_GM431946152.pdf
- https://www.campguru.co.za/images/coin-master-apk-mod-hack-download_GM406889139.pdf
- https://www.campguru.co.za/images/how-to-get-minecraft-bedrock-edition-on-pc-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
`font_00_sfnt_off00004b64.bin` `612297c93174021240ab98aa37ead556f5afa8fa99ed305dc7e19e570f3600c8`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x4B64	27880 bytes
`font_01_sfnt_off00008ba4.bin` `10d025f04f706eb71cdda4f99784df1b9ccb52e48080e43095e0398eaef6f132`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8BA4	2880 bytes
`font_02_sfnt_off0000958f.bin` `837a639daa187fc447bd118567dc66774ab6c99c19a83daf34219dbfdd013636`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x958F	19084 bytes

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