PDF malware analysis — malicious · 3e3af3e209cf9bd0

MALICIOUS

PDF

42.0 KB Created: 2021-05-19 11:00:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16

MD5: c0a5b07605be0011bc2c7b989d476bab SHA-1: b4d5eef92281fe2e33ed697444004b8fd934ad86 SHA-256: 3e3af3e209cf9bd07ea9b560e0a0e550c8df772330bb4b1febee35b8ed3a4c07

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 User Execution: Malicious File

The PDF document contains a fake CAPTCHA lure, aiming to trick the user into downloading a file from the embedded URL. The ML classifier also flagged this PDF as malicious. The presence of multiple URLs related to game hacks and cheats suggests a phishing or scam attempt.

Machine Learning

Nyx PDF Classifier malicious score 0.9971

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/robux-fun-hack-game-hack PDF link annotation
- http://webstan.be/images/tiktok-free-view-iphone-theme_GM835599320.pdfIn PDF document text
- http://webstan.be/images/coin-master-daily-free-spin-app_GM406889139.pdfIn PDF document text
- http://webstan.be/images/free-spins-coin-master-ios-2021_GM406889139.pdfIn PDF document text
- http://webstan.be/images/how-to-get-free-minecraft-alts_GM479516143.pdfIn PDF document text
- http://webstan.be/images/coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
- http://webstan.be/images/games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
- http://webstan.be/images/completed-coin-master-hack_GM406889139.pdfIn PDF document text
- http://webstan.be/images/coin-master-free-cards-link_GM406889139.pdfIn PDF document text
- http://webstan.be/images/minecraft-toolbox-premium-apk_GM479516143.pdfIn PDF document text
- http://webstan.be/images/hack-crack-for-coin-master-currency_GM406889139.pdfIn PDF document text
- http://webstan.be/images/free-robux-com_GM431946152.pdfIn PDF document text
- http://webstan.be/images/ultimate-free-spins-coin-master_GM406889139.pdfIn PDF document text
- http://webstan.be/images/robux-free-promo-codes_GM431946152.pdfIn PDF document text
- http://webstan.be/images/free-coins-coin-master-hack_GM406889139.pdfIn PDF document text
- http://webstan.be/images/coin-master-hack-2021_GM406889139.pdfIn PDF document text
- http://webstan.be/images/roblox-hack-ios_GM431946152.pdfIn PDF document text
- http://webstan.be/images/coin-master-hack-no-verification_GM406889139.pdfIn PDF document text
- http://webstan.be/images/cool-free-minecraft-skins_GM479516143.pdfIn PDF document text
- http://webstan.be/images/free-robux-accounts_GM431946152.pdfIn PDF document text
- http://webstan.be/images/how-to-hack-coin-master-ios-jailbreak_GM406889139.pdfIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_003_off00004796.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4796	24956 bytes
SHA-256: `fd1e420c68536789e6d287fa613118d27bfffdc47b25ce9c4f32ad49ee115720`
`font_01_sfnt_off00008160.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8160	18412 bytes
SHA-256: `5f8acd8ad37749349105b070ed73c2c3c7a96b7e2283405d761bfe738e73485c`

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