PDF malware analysis — malicious · f49251a74bb5883c

MALICIOUS

PDF

34.8 KB Created: 2021-07-04 17:48:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01

MD5: b2514ab0923047d0a55102991ce7f775 SHA-1: 38a1423cbffd0979ebf943998c0d3498ceded4cf SHA-256: f49251a74bb5883cc473508cd244b0f4e079b5132517b25002e5ec5df3d9033f

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/406889139/how-to-hack-coin-master-with-root-game-hack PDF link annotation
- http://studio-dentistico-fiume.com/files/how-to-get-minecraft-for-free-on-iphone_GM479516143.pdfIn PDF document text
- https://www.studio-dentistico-fiume.com/files/how-to-get-free-robux_GM431946152.pdfIn PDF document text
- http://studio-dentistico-fiume.com/files/how-to-get-free-robux-games_GM431946152.pdfIn PDF document text
- https://www.studio-dentistico-fiume.com/files/coin-master-free-spins-daily_GM406889139.pdfIn PDF document text
- http://studio-dentistico-fiume.com/files/how-to-get-free-robux-without-verifying_GM431946152.pdfIn PDF document text
- http://studio-dentistico-fiume.com/files/free-roblox-anti-afk_GM431946152.pdfIn PDF document text
- https://www.studio-dentistico-fiume.com/files/free-roblox-clothes-boy_GM431946152.pdfIn PDF document text
- http://studio-dentistico-fiume.com/files/roblox-moderators_GM431946152.pdfIn PDF document text
- http://studio-dentistico-fiume.com/files/free-tiktok-followers-instantly_GM835599320.pdfIn PDF document text
- https://www.studio-dentistico-fiume.com/files/hack-a-game_GM431946152.pdfIn PDF document text
- https://www.studio-dentistico-fiume.com/files/www-coinmaster-com_GM406889139.pdfIn PDF document text
- https://www.studio-dentistico-fiume.com/files/get-minecraft-windows-10-free_GM479516143.pdfIn PDF document text
- https://www.studio-dentistico-fiume.com/files/coin-master-hack-online-generator-without-human-verification_GM406889139.pdfIn PDF document text
- http://studio-dentistico-fiume.com/files/free-robux-macbook-version-2021_GM431946152.pdfIn PDF document text
- https://www.studio-dentistico-fiume.com/files/roblox-prison-life-hack_GM431946152.pdfIn PDF document text
- https://www.studio-dentistico-fiume.com/files/roblox-free-robux-generator_GM431946152.pdfIn PDF document text
- http://studio-dentistico-fiume.com/files/roblox-robux-hack-2021-october_GM431946152.pdfIn PDF document text
- https://www.studio-dentistico-fiume.com/files/how-do-you-hack-micah-on-roblox_GM431946152.pdfIn PDF document text
- https://www.studio-dentistico-fiume.com/files/roblox-hack-gg-uardikan_GM431946152.pdfIn PDF document text
- https://www.studio-dentistico-fiume.com/files/roblox-hack-video_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_off00003153.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3153	22832 bytes
SHA-256: `58c211254ecd643c54189553ae3b105a12b10f537caed2802d084ebe4334e932`
`font_01_sfnt_off00006492.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6492	18532 bytes
SHA-256: `20637ff70b6c74965f19f977f66c5a6202ab351393aa3df1687bc9e39f472cc5`

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