PDF malware analysis — malicious · 15b6cdb958f028e2

MALICIOUS

PDF

34.0 KB Created: 2021-07-09 20:22:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07

MD5: 46c28887d30d9a739793ad211121ffa5 SHA-1: c172e58930a9d3703942649fffbce66f24f9753a SHA-256: 15b6cdb958f028e24b661dc33f30ee14b67106c6d2b1e2a20fb61f53d93d23be

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a high-risk heuristic indicating it links to a 'free generator / game hack' lure. The document body and embedded URLs reinforce this, pointing to a URL that promises free spins for Coin Master. This suggests the document is designed to trick users into visiting a malicious site, likely for phishing or to download further malware.

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/406889139/coin-master-free-daily-spins-link-game-hack PDF link annotation
- https://yontemakademi.com.tr/public/uploads/files/free-roblox-accounts-with-robux-that-work-not-banned_GM431946152.pdfIn PDF document text
- https://yontemakademi.com.tr/public/uploads/files/horse-valley-roblox-cheats_GM431946152.pdfIn PDF document text
- https://yontemakademi.com.tr/public/uploads/files/free-coin-master-spins-for-today_GM406889139.pdfIn PDF document text
- https://yontemakademi.com.tr/public/uploads/files/how-to-earn-robux-fast_GM431946152.pdfIn PDF document text
- https://yontemakademi.com.tr/public/uploads/files/hacks-for-coin-master_GM406889139.pdfIn PDF document text
- https://yontemakademi.com.tr/public/uploads/files/how-to-get-free-horses-on-roblox-horse-valley_GM431946152.pdfIn PDF document text
- https://yontemakademi.com.tr/public/uploads/files/roblox-super-hacks-2021_GM431946152.pdfIn PDF document text
- https://yontemakademi.com.tr/public/uploads/files/how-to-get-free-likes-on-tiktok_GM835599320.pdfIn PDF document text
- https://yontemakademi.com.tr/public/uploads/files/hack-avatar-roblox_GM431946152.pdfIn PDF document text
- https://yontemakademi.com.tr/public/uploads/files/coin-master-hacks_GM406889139.pdfIn PDF document text
- https://yontemakademi.com.tr/public/uploads/files/how-to-download-minecraft-hacks_GM479516143.pdfIn PDF document text
- https://yontemakademi.com.tr/public/uploads/files/minecraft-free-download-windows-10_GM479516143.pdfIn PDF document text
- https://yontemakademi.com.tr/public/uploads/files/boombox-backpack-free-roblox_GM431946152.pdfIn PDF document text
- https://yontemakademi.com.tr/public/uploads/files/codes-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
- https://yontemakademi.com.tr/public/uploads/files/real-free-robux-generator_GM431946152.pdfIn PDF document text
- https://yontemakademi.com.tr/public/uploads/files/wurst-client-18-9_GM479516143.pdfIn PDF document text
- https://yontemakademi.com.tr/public/uploads/files/free-roblox-hair-boy_GM431946152.pdfIn PDF document text
- https://yontemakademi.com.tr/public/uploads/files/coin-master-free-spin-today_GM406889139.pdfIn PDF document text
- https://yontemakademi.com.tr/public/uploads/files/free-roblox-templates_GM431946152.pdfIn PDF document text
- https://yontemakademi.com.tr/public/uploads/files/blogspot-coin-master-free-spins_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_002_off00002efe.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x2EFE	22312 bytes
SHA-256: `d372e54db066523ab349ef3f7a850cb35936cd004d544c379d0c93321cc03325`
`font_01_sfnt_off000060c9.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x60C9	18768 bytes
SHA-256: `0ceb7b0488aaa16a0c23cac8de9df794ae3fa7cd27271b33a51c469a71425e8d`

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