PDF malware analysis — malicious · 761cf14ed78e7463

MALICIOUS

PDF

35.7 KB Created: 2021-07-09 12:10:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01

MD5: df273a75f1b0b060a89f5504a3b6b72e SHA-1: ca1499c0dadd38658fe96dd1366a72247aea3dcb SHA-256: 761cf14ed78e7463b2a31a69dcad7fac7726e29e5a07ffb0ceffd68d77ea94c8

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.tw/app/431946152/roblox-robux-generator-http-freerobuxgenerator-xyz-game-hack PDF link annotation
- https://www.cgalgeria-dubai.com/userfiles/files/coin-master-coins-hack_GM406889139.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/no-scam-free-robux_GM431946152.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/free-robux-sites-2021_GM431946152.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/how-to-get-free-coins-and-free-spins-coin-master_GM406889139.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/www-free-robux_GM431946152.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/how-to-hack-a-roblox-account-2021_GM431946152.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/how-to-get-robux-with-cheat-engine-64_GM431946152.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/free-og-roblox-accounts_GM431946152.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/coin-master-free-food-for-pet_GM406889139.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/get-coin-master-cards-free_GM406889139.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/coin-master-daily-free-spins-blogspot_GM406889139.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/free-minecraft-account-and-password_GM479516143.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/how-to-hack-unprotected-roblox-games_GM431946152.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/cheats-coin-master-free-spins-and-news_GM406889139.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/get-roblox-hacks_GM431946152.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/coin-master-hack-app_GM406889139.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/money-cheats-for-roblox-vehicle-simulator_GM431946152.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/free-coin-master-spins-and-coins_GM406889139.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/how-to-instal-roblox-hack_GM431946152.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/coin-master-free-spin-and-coin_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
`font_00_sfnt_off0000338d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x338D	22348 bytes
SHA-256: `668bc4aac06289aeb8219288d929088757fa9b032edda5943adff38b196ecbeb`
`font_01_sfnt_off0000656a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x656A	19332 bytes
SHA-256: `3847149b477a4e2ba4f9248fde2909885d2401f9abbab2c284e38936ec39ea88`

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