PDF malware analysis — malicious · 9d2adf4c2cf5da88

MALICIOUS

PDF

34.4 KB Created: 2021-06-28 06:16:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: 4d12f956f3a22fe61a6f953833f412cb SHA-1: 01c38d0c2104f5d2395fc000c633f1366be4b5a5 SHA-256: 9d2adf4c2cf5da8855a124099350e69836e370fa0356812c4484b9171bd854c1

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.co/app/431946152/clothes-in-roblox-free-game-hack PDF link annotation
- http://gamardelli.com.br/images/ckfinder/files/roblox-booga-booga-hack_GM431946152.pdfIn PDF document text
- http://gamardelli.com.br/images/ckfinder/files/coin-master-unlimited-spins-apk-free-download_GM406889139.pdfIn PDF document text
- http://gamardelli.com.br/images/ckfinder/files/free-hair-roblox-boy_GM431946152.pdfIn PDF document text
- http://gamardelli.com.br/images/ckfinder/files/roblox-account-hacker-tool-2021_GM431946152.pdfIn PDF document text
- http://gamardelli.com.br/images/ckfinder/files/free-robux-no-verification-2021_GM431946152.pdfIn PDF document text
- http://gamardelli.com.br/images/ckfinder/files/free-roblox-accounts-2021-obc_GM431946152.pdfIn PDF document text
- http://gamardelli.com.br/images/ckfinder/files/coin-master-free-spins-link-2021-app_GM406889139.pdfIn PDF document text
- http://gamardelli.com.br/images/ckfinder/files/can-i-get-robux-for-free_GM431946152.pdfIn PDF document text
- http://gamardelli.com.br/images/ckfinder/files/roblox-games-online-free-no-download_GM431946152.pdfIn PDF document text
- http://gamardelli.com.br/images/ckfinder/files/coin-master-hack-reddit_GM406889139.pdfIn PDF document text
- http://gamardelli.com.br/images/ckfinder/files/free-roblox-generator-for-roblox_GM431946152.pdfIn PDF document text
- http://gamardelli.com.br/images/ckfinder/files/how-to-get-free-skins-in-minecraft_GM479516143.pdfIn PDF document text
- http://gamardelli.com.br/images/ckfinder/files/descargar-hack-robux-gratis_GM431946152.pdfIn PDF document text
- http://gamardelli.com.br/images/ckfinder/files/free-spins-link-in-coin-master-2021_GM406889139.pdfIn PDF document text
- http://gamardelli.com.br/images/ckfinder/files/robux-giver_GM431946152.pdfIn PDF document text
- http://gamardelli.com.br/images/ckfinder/files/how-do-you-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
- http://gamardelli.com.br/images/ckfinder/files/how-to-get-free-plus-on-roblox_GM431946152.pdfIn PDF document text
- http://gamardelli.com.br/images/ckfinder/files/how-to-get-free-robux-no-scam_GM431946152.pdfIn PDF document text
- http://gamardelli.com.br/images/ckfinder/files/free-robux-apps-that-work-2021_GM431946152.pdfIn PDF document text
- http://gamardelli.com.br/images/ckfinder/files/how-to-get-free-unlimited-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
`font_00_sfnt_off0000301f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x301F	22316 bytes
SHA-256: `3d9694a9516cab1322e0996e75bd8783062809b04f14e6c4d2ab746c59bd305f`
`font_01_sfnt_off000061db.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x61DB	18920 bytes
SHA-256: `219a87c2ea5861c392b968b60f0b97bcbc8b687cdd97d1bae2851111b7697968`

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