PDF malware analysis — malicious · cc8e1cff8c2e235d

MALICIOUS

PDF

41.8 KB Created: 2021-05-15 07:13:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04

MD5: 7efdea7806f8fa259534dc2a823d7918 SHA-1: dc627910f65d64cb1b336bc9405dfb408b9561ba SHA-256: cc8e1cff8c2e235d0c38ece0b9fd71018b3041958caf309bcc384c7f80e876c4

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 0.9971

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 https://netcdn.xyz/app/406889139/spin-rewards-coin-master-game-hack PDF link annotation
- https://loba.com.vn/public/upload/files/coin-master-hack-mod_GM406889139.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/minecraft-dungeons-free-download-pc_GM479516143.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/www-coin-master-hack_GM406889139.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/coin-master-free-spins-hack-iphone_GM406889139.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/7-year-old-roblox_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/how-to-get-free-daily-spins-on-coin-master_GM406889139.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/how-to-get-free-robux-without-downloading-any-apps_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/free-robux-generator-no-human-verification_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/how-do-you-hack-minecraft_GM479516143.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/coin-master-daily-free-spins-link-facebook_GM406889139.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/free-coins-on-coin-master-without-verification_GM406889139.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/roblox-cp_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/coin-master-hack-pro-gamers_GM406889139.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/free-robux-no-generator_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/coin-master-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/hack-coin-master-apk_GM406889139.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/coin-master-free-spain_GM406889139.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/hacked-roblox-game_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/blogger-free-spins-and-coins_GM406889139.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/robux-redeem_GM431946152.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_off000049cb.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x49CB	24360 bytes
SHA-256: `12dbac90f34f74a2e6aafbb77546dd160908b9c7b994215fb855664c379a526d`
`font_01_sfnt_off00008169.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8169	18060 bytes
SHA-256: `628a46f82764ac3e3d0c04e056b2a944aa1793d97516e60b3531d1bdfbd125df`

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