PDF malware analysis — malicious · 4e2bece600d2a56b

MALICIOUS

PDF

45.5 KB Created: 2021-06-03 09:16:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01

MD5: 0ad53d64ce2134f8de8bfb18d1f6521f SHA-1: 830085ee9ed9ebc782db5952f20b8927d2d39e1b SHA-256: 4e2bece600d2a56bab74b5654ce189185be003320ae4e9f6265a5d03fa3ac225

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 0.9864

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.online/app/431946152/codes-to-get-free-robux-game-hack PDF link annotation
- https://loba.com.vn/public/upload/files/how-to-get-minecraft-bedrock-for-free-with-java_GM479516143.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/roblox-free-download_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/free-24-7-minecraft-server_GM479516143.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/daily-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/coin-master-free-cards-link-2021_GM406889139.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/free-spin-link-for-coin-master_GM406889139.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/free-tiktok-followers-generator_GM835599320.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/buy-tiktok-followers-free_GM835599320.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/robux-generators-that-actually-work_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/minecraft-tower-defense-2-hacked_GM479516143.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/free-robux-come_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/freer-tiktok_GM835599320.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/free-roblox-accounts-with-robux-that-work-not-banned-2021_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/coin-master-free-spin-link-today-2021_GM406889139.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/coin-master-hack-download-2021_GM406889139.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/microsoft-bing-free-robux_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/coin-game_GM406889139.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/is-minecraft-free-on-nintendo-switch_GM479516143.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/coin-master-homepage_GM406889139.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/www-coin-master-hack_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_004_off0000518b.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x518B	27980 bytes
SHA-256: `1a86d247a4420c1b1052b67ab0be7dac8381d487fde0b5e5b3251cbc7e611d81`
`font_01_sfnt_off00008f1b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8F1B	18292 bytes
SHA-256: `c4e16f213ba515826b0fc8bd2adb9a42249615e2a7fe5232f5ebe2d4ec6172c1`

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