PDF malware analysis — malicious · 06ccfe5b4f07370f

MALICIOUS

PDF

44.9 KB Created: 2021-05-16 19:40:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: 1aef8492e7c4ad7057769007b8992b82 SHA-1: 266791bdd33bfaddde797f976d654bf93abdbaf2 SHA-256: 06ccfe5b4f07370ff3c06a5814a1ae517dda98545b439281233508c0206e9a8e

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 https://netcdn.xyz/app/406889139/coin-master-hack-spins-and-coins-unlimited-free-download-game-hack PDF link annotation
- http://en.gzyuquan.com/Public/upload/editorfiles/free-spin-coin-master-link-2021_GM406889139.pdfIn PDF document text
- http://en.gzyuquan.com/Public/upload/editorfiles/coin-master-free-spins-and-coins-daily_GM406889139.pdfIn PDF document text
- http://en.gzyuquan.com/Public/upload/editorfiles/wurst-client-112-2_GM479516143.pdfIn PDF document text
- http://en.gzyuquan.com/Public/upload/editorfiles/roblox-no-download-hack_GM431946152.pdfIn PDF document text
- http://en.gzyuquan.com/Public/upload/editorfiles/easy-free-spins-coin-master_GM406889139.pdfIn PDF document text
- http://en.gzyuquan.com/Public/upload/editorfiles/coin-master-heaven-free-spins-today_GM406889139.pdfIn PDF document text
- http://en.gzyuquan.com/Public/upload/editorfiles/coin-master-card-hack-2021_GM406889139.pdfIn PDF document text
- http://en.gzyuquan.com/Public/upload/editorfiles/free-daily-coin-master-coins_GM406889139.pdfIn PDF document text
- http://en.gzyuquan.com/Public/upload/editorfiles/daily-spin_GM406889139.pdfIn PDF document text
- http://en.gzyuquan.com/Public/upload/editorfiles/coin-master-hack-club_GM406889139.pdfIn PDF document text
- http://en.gzyuquan.com/Public/upload/editorfiles/rbx-hut_GM431946152.pdfIn PDF document text
- http://en.gzyuquan.com/Public/upload/editorfiles/coin-master-apk-hack-mod-download_GM406889139.pdfIn PDF document text
- http://en.gzyuquan.com/Public/upload/editorfiles/robux-gift-card-free_GM431946152.pdfIn PDF document text
- http://en.gzyuquan.com/Public/upload/editorfiles/hack-to-send-gold-cards-on-coin-master_GM406889139.pdfIn PDF document text
- http://en.gzyuquan.com/Public/upload/editorfiles/how-you-get-free-robux_GM431946152.pdfIn PDF document text
- http://en.gzyuquan.com/Public/upload/editorfiles/www-free-robux_GM431946152.pdfIn PDF document text
- http://en.gzyuquan.com/Public/upload/editorfiles/how-to-earn-robux-on-roblox_GM431946152.pdfIn PDF document text
- http://en.gzyuquan.com/Public/upload/editorfiles/free-robux-no-verify_GM431946152.pdfIn PDF document text
- http://en.gzyuquan.com/Public/upload/editorfiles/roblox-robux-page_GM431946152.pdfIn PDF document text
- http://en.gzyuquan.com/Public/upload/editorfiles/hey-google-how-do-you-get-free-robux_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
`stream_003_off00005175.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x5175	25960 bytes
SHA-256: `577839d7fde634870e4ffd601bcf5b703287b293fab25c2b650d51ee595b7899`
`font_01_sfnt_off00008b3e.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8B3E	19084 bytes
SHA-256: `3caa8a7d0fc813cf6f5b32cad2d70b7396c8f8504cee304b3b4cfd76b23e4d42`

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