PDF malware analysis — malicious · 74ea19f2d1ecfb6f

MALICIOUS

PDF

34.2 KB Created: 2021-07-04 05:50:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18

MD5: c65eb9ff68c237fb41fa699bab464884 SHA-1: 365672a952bfba680f3126d70a66f356f95fd394 SHA-256: 74ea19f2d1ecfb6f581270847b85a4dcb23f0384047bd7936763c59da82c13b6

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-generator-no-human-verification-game-hack PDF link annotation
- https://loba.com.vn/public/upload/files/delitive-mod-cheat-codes-roblox_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/roblox-free-robux-hack_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/roblox-free-bundles_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/easy-robux-today-com_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/free-minecraft-bedrock_GM479516143.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/minecraft-free-version_GM479516143.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/google-coin-master-free-spins_GM406889139.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/roblox-cheat-codes-jailbreak_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/coin-master-35-2-hack_GM406889139.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/rexima-roblox-cheat_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/free-robux-hacker-us_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/royal-high-roblox-cheats_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/roblox-tracker_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/roblox-hacked-sitted_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/free-robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/roblox-sexually_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/how-do-u-get-free-robux_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/coin-master-collect-today-free-spin_GM406889139.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/coin-master-ultra-attack-hack_GM406889139.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/how-to-get-free-robux-on-chromebook_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
`font_00_sfnt_off00002f47.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2F47	22012 bytes
SHA-256: `74e146d647b1b917b5dac323256447c11d26cde4b5e3953502e1f9e27c56aabd`
`font_01_sfnt_off0000602b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x602B	19244 bytes
SHA-256: `d1b73b6c9b414ff984acb0e517d90fd3f78e9a2b39bf0dc724f474e366efabcd`

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