PDF malware analysis — malicious · 34468e5edcc79bee

MALICIOUS

PDF

45.9 KB Created: 2021-06-10 18:41:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: c02b335169db7b2d2b97037086fab604 SHA-1: 220bab5a713683d5f4bc35f601bc9c40b29fbb8e SHA-256: 34468e5edcc79bee772466f32c8f72a2258d19163197084e81d6e45a96a19264

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a fake CAPTCHA lure, a common social engineering tactic to trick users into interacting with malicious content. It also embeds an external URI pointing to a URL associated with 'free Robux', a frequent lure for gaming-related scams. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

Nyx PDF Classifier malicious score 0.9864

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.tw/app/431946152/tricky-nicky-how-to-get-free-robux-game-hack
- https://www.elevage-chiot.fr/images/spin-coin_GM406889139.pdf
- https://www.elevage-chiot.fr/images/free-printable-roblox-coloring-pages_GM431946152.pdf
- https://www.elevage-chiot.fr/images/boost9-com-roblox-hack_GM431946152.pdf
- https://www.elevage-chiot.fr/images/free-robux-com_GM431946152.pdf
- https://www.elevage-chiot.fr/images/how-to-get-a-free-dominus-in-roblox_GM431946152.pdf
- https://www.elevage-chiot.fr/images/how-to-get-free-robux-without-downloading-apps-2021_GM431946152.pdf
- https://www.elevage-chiot.fr/images/minecraft-apk-download-v1-144-2-free_GM479516143.pdf
- https://www.elevage-chiot.fr/images/free-robux-kid-friendly-no-human-verification_GM431946152.pdf
- https://www.elevage-chiot.fr/images/free-robux-no-verification-at-all_GM431946152.pdf
- https://www.elevage-chiot.fr/images/coin-master-free-spins-link-blogspot_GM406889139.pdf
- https://www.elevage-chiot.fr/images/minecraft-ps3-free-download_GM479516143.pdf
- https://www.elevage-chiot.fr/images/free-tiktok-fans-no-verification_GM835599320.pdf
- https://www.elevage-chiot.fr/images/free-robux-only-1-step_GM431946152.pdf
- https://www.elevage-chiot.fr/images/coin-master-daily-free-spins-link-today_GM406889139.pdf
- https://www.elevage-chiot.fr/images/comapp-trekfree-coin-spindaily-link-master_GM406889139.pdf
- https://www.elevage-chiot.fr/images/minecraft-hacks-xbox-one_GM479516143.pdf
- https://www.elevage-chiot.fr/images/daily-free-spins-coin-master_GM406889139.pdf
- https://www.elevage-chiot.fr/images/are-robux-hacks-real_GM431946152.pdf
- https://www.elevage-chiot.fr/images/free-minecraft-maps_GM479516143.pdf
- https://www.elevage-chiot.fr/images/give-free-robux_GM431946152.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_off00005064.bin` `6d2eaf1caa4ff1e8afd907bb11fa60933f82d9fb51be75f9596a83ba23ec8b86`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5064	26896 bytes
`font_01_sfnt_off00008f5e.bin` `246f88215dc2d97cdcda4dceb04c6fadc8c60f4e0c5e5f8515e5b4f35b5ef1ff`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8F5E	18752 bytes

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