PDF malware analysis — malicious · 58fa9765b44550f5

MALICIOUS

PDF

35.1 KB Created: 2021-06-28 07:25:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01

MD5: 742557aa61dc357dd4609d2130aebacf SHA-1: c80e89131ffbec562a49eaf69796e30510e129c1 SHA-256: 58fa9765b44550f5d48069953d04dcd94f311650a0c5c97c45996c8696aae17f

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/emergency-response-hack-roblox-game-hack PDF link annotation
- https://lamgiangservice.com/ckfinder/userfiles/files/archery-master-3d-unlimited-coins-hack_GM406889139.pdfIn PDF document text
- https://lamgiangservice.com/ckfinder/userfiles/files/free-roblox-outfits-2021_GM431946152.pdfIn PDF document text
- https://lamgiangservice.com/ckfinder/userfiles/files/free-promo-codes-for-robux_GM431946152.pdfIn PDF document text
- https://lamgiangservice.com/ckfinder/userfiles/files/can-you-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
- https://lamgiangservice.com/ckfinder/userfiles/files/hack-coin-master-link_GM406889139.pdfIn PDF document text
- https://lamgiangservice.com/ckfinder/userfiles/files/how-to-get-free-robux-hack_GM431946152.pdfIn PDF document text
- https://lamgiangservice.com/ckfinder/userfiles/files/coin-master-free-spins-link-today-instagram_GM406889139.pdfIn PDF document text
- https://lamgiangservice.com/ckfinder/userfiles/files/moonactive-coin-master-free-spins-link_GM406889139.pdfIn PDF document text
- https://lamgiangservice.com/ckfinder/userfiles/files/free-roblox-dominus_GM431946152.pdfIn PDF document text
- https://lamgiangservice.com/ckfinder/userfiles/files/how-to-hack-coin-master-game-without-root_GM406889139.pdfIn PDF document text
- https://lamgiangservice.com/ckfinder/userfiles/files/how-to-earn-robux-by-playing-games_GM431946152.pdfIn PDF document text
- https://lamgiangservice.com/ckfinder/userfiles/files/coin-master-daily-free-spins-link-app_GM406889139.pdfIn PDF document text
- https://lamgiangservice.com/ckfinder/userfiles/files/free-expert-sripters-roblox_GM431946152.pdfIn PDF document text
- https://lamgiangservice.com/ckfinder/userfiles/files/how-to-hack-in-arsenal_GM431946152.pdfIn PDF document text
- https://lamgiangservice.com/ckfinder/userfiles/files/free-modded-minecraft-server_GM479516143.pdfIn PDF document text
- https://lamgiangservice.com/ckfinder/userfiles/files/how-to-use-scripts-in-roblox-hack_GM431946152.pdfIn PDF document text
- https://lamgiangservice.com/ckfinder/userfiles/files/fabulous-2-roblox-hack_GM431946152.pdfIn PDF document text
- https://lamgiangservice.com/ckfinder/userfiles/files/picture-roblox_GM431946152.pdfIn PDF document text
- https://lamgiangservice.com/ckfinder/userfiles/files/free-roblox-acvounts_GM431946152.pdfIn PDF document text
- https://lamgiangservice.com/ckfinder/userfiles/files/giftrobux-com-generator_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_off00003057.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3057	22788 bytes
SHA-256: `a5205a352564a56ef07db5ce950328ced8ff8ec8e590fad6c0ea240ecd81bfbc`
`font_01_sfnt_off00006350.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6350	19272 bytes
SHA-256: `fd6c65be57588582d46366c8f9a2d08faf05248376c3e6ee2d1271532adebe34`

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