PDF malware analysis — malicious · 6b024089bdf0132f

MALICIOUS

PDF

35.2 KB Created: 2021-07-07 22:18:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04

MD5: e66fe6edeadcf220261da7c913e0c6e0 SHA-1: b40a1adfe5d73ffb244a34d54d312586a251e418 SHA-256: 6b024089bdf0132f441abfb8dbf1caae072740d1083428d8dd31f337d5bade70

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/how-to-get-free-robux-app-game-hack PDF link annotation
- https://loba.com.vn/public/upload/files/coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/free-robux-generator-2021_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/free-robux-without-verification-or-survey_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/free-robux-no-hacking-acc_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/free-robux-for-kids-no-verification_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/wurst-client-18-9_GM479516143.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/free-robux-group_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/coin-master-hack-mod_GM406889139.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/free-spin-sites-for-coin-master_GM406889139.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/how-to-get-minecraft-pe-for-free_GM479516143.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/body-building-roblox-weightlifting-hack_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/roblox-hack-gui-download_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/how-to-hack-roblox-trackid-sp006_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/free-coin-master-hacks_GM406889139.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/john-doe-roblox-hacker_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/bad-minecraft-free_GM479516143.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/cheat-roblox-shark-bite_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/claim-gg-earn-free-robux-for-roblox_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_off00003118.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3118	22948 bytes
SHA-256: `e4c7260c66ca685a32de4f080489e7a56ab75f4322c889bc43eb83c1f7ab2c0c`
`font_01_sfnt_off00006449.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6449	19160 bytes
SHA-256: `ee53d07219221ba0fdfe81894d5ca599fe468676eb87c1173a0c0a62f90b0706`

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