PDF malware analysis — malicious · d79ec61d9ee378ed

MALICIOUS

PDF

35.3 KB Created: 2021-07-09 21:27:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17

MD5: d7bf6b28c6282c286f111a4f8f04a298 SHA-1: 83fd0ad6a467230c0990356886ace9a4244add33 SHA-256: d79ec61d9ee378ede33c00d4e994c53454572b152dd2ecbcf4c4e8cf7757f01c

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains a high-risk heuristic indicating it links to a game hack redirector, specifically http://netcdn.tw/app/406889139/master-coin-hack-mod-game-hack. This lure is designed to trick users into downloading potentially malicious files or visiting further compromised sites. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest a malicious workflow aimed at user deception.

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/406889139/master-coin-hack-mod-game-hack PDF link annotation
- https://promidiapropaganda.com.br/modules/default/fotos/uploads/files/hacks-for-minecraft-windows-10_GM479516143.pdfIn PDF document text
- https://promidiapropaganda.com.br/modules/default/fotos/uploads/files/roblox-fly-hack_GM431946152.pdfIn PDF document text
- https://promidiapropaganda.com.br/modules/default/fotos/uploads/files/coin-master-hack-using-cheat-engine_GM406889139.pdfIn PDF document text
- https://promidiapropaganda.com.br/modules/default/fotos/uploads/files/www-roblox-com-robux-free_GM431946152.pdfIn PDF document text
- https://promidiapropaganda.com.br/modules/default/fotos/uploads/files/coin-master-free-daily-spins-link_GM406889139.pdfIn PDF document text
- https://promidiapropaganda.com.br/modules/default/fotos/uploads/files/daily-free-spins-coin-master-app_GM406889139.pdfIn PDF document text
- https://promidiapropaganda.com.br/modules/default/fotos/uploads/files/free-robux-cards-2021_GM431946152.pdfIn PDF document text
- https://promidiapropaganda.com.br/modules/default/fotos/uploads/files/is-minecraft-dungeons-free_GM479516143.pdfIn PDF document text
- https://promidiapropaganda.com.br/modules/default/fotos/uploads/files/soul-dynasty-roblox-hack_GM431946152.pdfIn PDF document text
- https://promidiapropaganda.com.br/modules/default/fotos/uploads/files/how-to-get-robux_GM431946152.pdfIn PDF document text
- https://promidiapropaganda.com.br/modules/default/fotos/uploads/files/roblox-hacks-2021_GM431946152.pdfIn PDF document text
- https://promidiapropaganda.com.br/modules/default/fotos/uploads/files/free-spins-coin-master-hack_GM406889139.pdfIn PDF document text
- https://promidiapropaganda.com.br/modules/default/fotos/uploads/files/unpatchable-roblox-hack_GM431946152.pdfIn PDF document text
- https://promidiapropaganda.com.br/modules/default/fotos/uploads/files/hack-legends-of-speed-roblox_GM431946152.pdfIn PDF document text
- https://promidiapropaganda.com.br/modules/default/fotos/uploads/files/coin-master-apk_GM406889139.pdfIn PDF document text
- https://promidiapropaganda.com.br/modules/default/fotos/uploads/files/coin-master-free-spins-coins_GM406889139.pdfIn PDF document text
- https://promidiapropaganda.com.br/modules/default/fotos/uploads/files/infinite-robux-hack-2021_GM431946152.pdfIn PDF document text
- https://promidiapropaganda.com.br/modules/default/fotos/uploads/files/roblox-zone-free-robux_GM431946152.pdfIn PDF document text
- https://promidiapropaganda.com.br/modules/default/fotos/uploads/files/roblox-money-hack-lumber-tycoon-2_GM431946152.pdfIn PDF document text
- https://promidiapropaganda.com.br/modules/default/fotos/uploads/files/roblox-got-talent-piano-hack_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_002_off00003363.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x3363	23100 bytes
SHA-256: `13fc296e43604825d83c7ee035201585b76a8bff8fca368ecbd9130156b8f9b4`
`font_01_sfnt_off0000678e.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x678E	18180 bytes
SHA-256: `ed04b551d40dc3d0b078bebd4df0367427dce1de22e506577ff87439cc2ad0e8`

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