PDF malware analysis — malicious · 3ddbe7b656d9d06a

MALICIOUS

PDF

43.4 KB Created: 2021-05-14 10:56:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 210fc93fe462723c7b11fde952f22e3f SHA-1: 2da1019f494920237c4c8da3a85a0fbbfb107d96 SHA-256: 3ddbe7b656d9d06a8077c003c057059d96d34c7bced809df1c5ee4a68571bb62

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains a large number of embedded links, identified as a link farm, pointing to various websites offering free in-game currency and hacks. The ML classifier strongly flagged this PDF as malicious, and the presence of numerous external URIs suggests a phishing or scam attempt. While no scripts were directly extracted, the PDF structure and link farm indicate a malicious intent to redirect users to potentially harmful sites.

Machine Learning

Nyx PDF Classifier malicious score 0.9969

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 https://netcdn.xyz/app/406889139/coin-master-no-download-app-but-play-for-free-game-hack
- http://grabmyinfo.com/images/free-robux-games-that-actually-work_GM431946152.pdf
- http://grabmyinfo.com/images/how-to-make-roblox-clothes-for-free_GM431946152.pdf
- http://grabmyinfo.com/images/uprobuxcom-free-robux_GM431946152.pdf
- http://grabmyinfo.com/images/roblox-its-free_GM431946152.pdf
- http://grabmyinfo.com/images/coin-master-2021-free-spins-link_GM406889139.pdf
- http://grabmyinfo.com/images/free-robux-no-downloading-apps_GM431946152.pdf
- http://grabmyinfo.com/images/roblox-hack-tool_GM431946152.pdf
- http://grabmyinfo.com/images/free-robux-hack-no-human-verification_GM431946152.pdf
- http://grabmyinfo.com/images/free-robux-no-password_GM431946152.pdf
- http://grabmyinfo.com/images/coin-master-free-shield-link_GM406889139.pdf
- http://grabmyinfo.com/images/coin-master-free-spin-now_GM406889139.pdf
- http://grabmyinfo.com/images/blox-world-free-robux_GM431946152.pdf
- http://grabmyinfo.com/images/coin-master-2021-free-spins-link-blogspot_GM406889139.pdf
- http://grabmyinfo.com/images/coin-master-free-spin-and-trading-group_GM406889139.pdf
- http://grabmyinfo.com/images/roblox-play-as-guest-free_GM431946152.pdf
- http://grabmyinfo.com/images/how-to-get-a-free-minecraft-server_GM479516143.pdf
- http://grabmyinfo.com/images/robux-now_GM431946152.pdf
- http://grabmyinfo.com/images/coin-master-free-coins-and-spins-daily_GM406889139.pdf
- http://grabmyinfo.com/images/coin-master-apk-mod_GM406889139.pdf
- http://grabmyinfo.com/images/free-robux-gift-card-generator_GM431946152.pdf
- http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_003_off00004955.bin` `9b6d073213af583ceb45c0a48462fdb8a6f9818af07379b48eb78be53bd38ae5`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4955	26840 bytes
`font_01_sfnt_off000084e4.bin` `d7b6f490b42dcfb2d6122599357b88a3225a96ba620445c96d399f93ea3e3daf`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x84E4	19156 bytes

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