PDF malware analysis — malicious · ea489d5ce002a714

MALICIOUS

PDF

36.2 KB Created: 2021-06-22 07:58:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: 6124745803a48f6376841922653f9acd SHA-1: 1abe5ccec94b3a0925188f609847afa225e7f6e2 SHA-256: ea489d5ce002a7141e4a2611fedc6ec5ddf2e1850e17fdff0a90c924d454dfd0

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains a link disguised as a game hack generator, which redirects to a malicious URL. The ML classifier also flagged this PDF as malicious. No scripts were extracted, but the embedded URL and the lure suggest a phishing or malware distribution attempt.

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.co/app/479516143/minecraft-hacked-apk-game-hack PDF link annotation
- https://elearning.madhpku.com/__statics/gudangsoal/files/free-minecraft-bedrock_GM479516143.pdfIn PDF document text
- https://elearning.madhpku.com/__statics/gudangsoal/files/coin-master-free-link-app_GM406889139.pdfIn PDF document text
- https://elearning.madhpku.com/__statics/gudangsoal/files/coin-master-free-spins-through-coin-pop_GM406889139.pdfIn PDF document text
- https://elearning.madhpku.com/__statics/gudangsoal/files/get-free-spins-coin-master-link_GM406889139.pdfIn PDF document text
- https://elearning.madhpku.com/__statics/gudangsoal/files/how-to-get-daily-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
- https://elearning.madhpku.com/__statics/gudangsoal/files/roblox-elemental-battlegrounds-cheats_GM431946152.pdfIn PDF document text
- https://elearning.madhpku.com/__statics/gudangsoal/files/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
- https://elearning.madhpku.com/__statics/gudangsoal/files/heroes-online-roblox_GM431946152.pdfIn PDF document text
- https://elearning.madhpku.com/__statics/gudangsoal/files/boku-no-roblox-legendary-hack_GM431946152.pdfIn PDF document text
- https://elearning.madhpku.com/__statics/gudangsoal/files/hack-robux-gratis-pastebin_GM431946152.pdfIn PDF document text
- https://elearning.madhpku.com/__statics/gudangsoal/files/www-free-robux-com_GM431946152.pdfIn PDF document text
- https://elearning.madhpku.com/__statics/gudangsoal/files/coin-master-hack-spin-generator_GM406889139.pdfIn PDF document text
- https://elearning.madhpku.com/__statics/gudangsoal/files/free-minecraft-account_GM479516143.pdfIn PDF document text
- https://elearning.madhpku.com/__statics/gudangsoal/files/free-roblox-shirts-templates_GM431946152.pdfIn PDF document text
- https://elearning.madhpku.com/__statics/gudangsoal/files/coin-master-free-coins-and-spins-daily_GM406889139.pdfIn PDF document text
- https://elearning.madhpku.com/__statics/gudangsoal/files/free-robux-without-verification-2021_GM431946152.pdfIn PDF document text
- https://elearning.madhpku.com/__statics/gudangsoal/files/bloxland-earn-free-robux_GM431946152.pdfIn PDF document text
- https://elearning.madhpku.com/__statics/gudangsoal/files/may-11-free-robux_GM431946152.pdfIn PDF document text
- https://elearning.madhpku.com/__statics/gudangsoal/files/free-robux-redeem-codes-2021_GM431946152.pdfIn PDF document text
- https://elearning.madhpku.com/__statics/gudangsoal/files/corn-master_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
`font_00_sfnt_off000038db.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x38DB	22576 bytes
SHA-256: `657a8d8992bb791861f90e692a5a640ee7fe694bfbf072e56ef9f8da53804d3c`
`font_01_sfnt_off00006ad8.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6AD8	18376 bytes
SHA-256: `4ae0e897244b716fe6ce5b1c6def32bc0f04b747800442e698e8794dad1f7acb`

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