PDF malware analysis — malicious · e2847ce21998f709

MALICIOUS

PDF

34.8 KB Created: 2021-06-23 14:32:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: 4ea4f571c0cbc58ca50b9a9bfc3a9ee5 SHA-1: ebffb9599e62dfd2f4ca20ea21b3e4616494d9dc SHA-256: e2847ce21998f709a5afc97b8557863352bc31c8e926258c1d1656d52866a348

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

Heuristics 4

PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE

PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
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 http://netcdn.co/app/431946152/free-robux-game-that-showed-on-roblox-game-hack PDF link annotation
- https://www.yatatravel.com/uploaded_files/userfiles/files/get-free-robux-without-human-verification_GM431946152.pdfIn PDF document text
- https://www.yatatravel.com/uploaded_files/userfiles/files/rbxoffers-earn-free-robux_GM431946152.pdfIn PDF document text
- https://www.yatatravel.com/uploaded_files/userfiles/files/free-robux-android_GM431946152.pdfIn PDF document text
- https://www.yatatravel.com/uploaded_files/userfiles/files/coin-master-free-spins-and-free-coins_GM406889139.pdfIn PDF document text
- https://www.yatatravel.com/uploaded_files/userfiles/files/coin-master-free-spins-no-generator_GM406889139.pdfIn PDF document text
- https://www.yatatravel.com/uploaded_files/userfiles/files/free-tiktok-accounts-with-followers_GM835599320.pdfIn PDF document text
- https://www.yatatravel.com/uploaded_files/userfiles/files/como-hackear-coin-master_GM406889139.pdfIn PDF document text
- https://www.yatatravel.com/uploaded_files/userfiles/files/roblox-pastabin-hack-script_GM431946152.pdfIn PDF document text
- https://www.yatatravel.com/uploaded_files/userfiles/files/free-robux-no-verification-or-survey-2021_GM431946152.pdfIn PDF document text
- https://www.yatatravel.com/uploaded_files/userfiles/files/free-roblox-clothes-templates_GM431946152.pdfIn PDF document text
- https://www.yatatravel.com/uploaded_files/userfiles/files/roblox-moderators_GM431946152.pdfIn PDF document text
- https://www.yatatravel.com/uploaded_files/userfiles/files/how-to-get-free-robux-without-verifying-2021_GM431946152.pdfIn PDF document text
- https://www.yatatravel.com/uploaded_files/userfiles/files/impact-minecraft-hack_GM479516143.pdfIn PDF document text
- https://www.yatatravel.com/uploaded_files/userfiles/files/roblox-controversy_GM431946152.pdfIn PDF document text
- https://www.yatatravel.com/uploaded_files/userfiles/files/orocash-earn-free-robux_GM431946152.pdfIn PDF document text
- https://www.yatatravel.com/uploaded_files/userfiles/files/coin-master-free-spin-realme-products_GM406889139.pdfIn PDF document text
- https://www.yatatravel.com/uploaded_files/userfiles/files/robux-no-verification_GM431946152.pdfIn PDF document text
- https://www.yatatravel.com/uploaded_files/userfiles/files/robux-hack-me_GM431946152.pdfIn PDF document text
- https://www.yatatravel.com/uploaded_files/userfiles/files/www-bandicam-com-free-robux_GM431946152.pdfIn PDF document text
- https://www.yatatravel.com/uploaded_files/userfiles/files/minecraft-app-free-download_GM479516143.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
`font_00_sfnt_off000030e7.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x30E7	21828 bytes
SHA-256: `a33e4641843b53dbed19f7b456cae33b7fb61b770600f25952ba30fa421ad292`
`font_01_sfnt_off00006108.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6108	19660 bytes
SHA-256: `f997f9f04d7086e811d898cb0a0d559d84821da78461f19d58b77cef3c1a13de`

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