PDF malware analysis — malicious · 24e77480e7f556e8

MALICIOUS

PDF

34.1 KB Created: 2021-07-03 22:40:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 1feb53f40b1e14b2f0b260ec787d12cb SHA-1: d269f3cecaad8ac43b22dd13975a6224943974b4 SHA-256: 24e77480e7f556e8441007d2f1bd071c67d8169e166362655313d19f8ee5603f

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains numerous links to external websites, many of which are hosted on `empresa-venta.hr` and `netcdn.tw`, and promise free Robux or game hacks. The document body and heuristics indicate a lure for users to click these links, likely leading to malware downloads or phishing. No scripts were extracted, but the PDF structure and embedded URIs strongly suggest a malicious intent to redirect users to harmful content.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

Heuristics 4

Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM

Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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/431946152/roblox-rewards-robux-game-hack
- http://empresa-venta.hr/files/how-to-hack-roblox-to-get-robux_GM431946152.pdf
- http://empresa-venta.hr/files/roblox-vehicle-simulator-how-to-get-the-free-volkswagen_GM431946152.pdf
- http://empresa-venta.hr/files/uprobuxcom-free-robux_GM431946152.pdf
- http://empresa-venta.hr/files/report-abuse-robox-paist-bin-free-robux-code_GM431946152.pdf
- http://empresa-venta.hr/files/roblox-hack-download-pc-free_GM431946152.pdf
- http://empresa-venta.hr/files/how-to-get-free-vip-on-any-server-on-roblox_GM431946152.pdf
- http://empresa-venta.hr/files/coin-master-hack-ios-no-jailbreak_GM406889139.pdf
- http://empresa-venta.hr/files/coin-master-free-spins-link-today-instagram_GM406889139.pdf
- http://empresa-venta.hr/files/coin-master-free-gifts_GM406889139.pdf
- http://empresa-venta.hr/files/free-tiktok-followers_GM835599320.pdf
- http://empresa-venta.hr/files/hacks-to-get-free-robux_GM431946152.pdf
- http://empresa-venta.hr/files/how-to-put-scripts-in-roblox-hack-in-your-game_GM431946152.pdf
- http://empresa-venta.hr/files/how-to-change-your-username-in-roblox-for-free_GM431946152.pdf
- http://empresa-venta.hr/files/robux-hack-no-download-no-survey-2021_GM431946152.pdf
- http://empresa-venta.hr/files/free-robux-true-2021_GM431946152.pdf
- http://empresa-venta.hr/files/get-free-robux-no-inspect-fake_GM431946152.pdf
- http://empresa-venta.hr/files/roblox-sexually_GM431946152.pdf
- http://empresa-venta.hr/files/free-roblox-gift-card_GM431946152.pdf
- http://empresa-venta.hr/files/free-robux-microsoft_GM431946152.pdf
- http://empresa-venta.hr/files/minecraft-free_GM479516143.pdf
- http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00002eb2.bin` `4ae20d356003cd890c07a99364555b7a119a9c6ccc302148289e74f920b65ba9`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2EB2	22256 bytes
`font_01_sfnt_off00006026.bin` `322cb015d8416946c2b1976d39301ec3b41f89cc5c69f423f24bf617dba1afa4`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6026	18964 bytes

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