PDF malware analysis — malicious · 16e6e9fd1f3b97d0

MALICIOUS

PDF

43.3 KB Created: 2021-05-13 17:53:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 5de43b4fdc2b98b1b9e0eaf865f2c375 SHA-1: 53e52ee0c96e96a8cca3910762a9b6623e7cb58b SHA-256: 16e6e9fd1f3b97d036323673a60276ba098cee12bdc78da506ffaa17359c70b8

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of external links, many of which are structured as SEO-friendly slugs, indicating a link farm or SEO spam campaign. The document body and extracted URLs suggest a lure related to 'free Robux' or 'Coin Master' spins, likely intended to drive traffic to malicious sites or facilitate the download of further malware. The ML classifier strongly flagged this PDF as malicious.

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/431946152/how-do-you-get-free-robux-2021-game-hack
- http://condit-pack.com/images/free-coin-and-spin-for-coin-master_GM406889139.pdf
- http://condit-pack.com/images/how-to-get-free-robux-on-roblox-2021_GM431946152.pdf
- http://condit-pack.com/images/give-free-robux_GM431946152.pdf
- http://condit-pack.com/images/free-spins-october-28-2021-coin-master_GM406889139.pdf
- http://condit-pack.com/images/how-to-get-free-unlimited-robux_GM431946152.pdf
- http://condit-pack.com/images/codes-to-get-free-robux_GM431946152.pdf
- http://condit-pack.com/images/blox-world-free-robux_GM431946152.pdf
- http://condit-pack.com/images/how-to-log-out-of-coin-master_GM406889139.pdf
- http://condit-pack.com/images/earn-robux-for-roblox_GM431946152.pdf
- http://condit-pack.com/images/roblox-hack-generator_GM431946152.pdf
- http://condit-pack.com/images/coin-master-hacks-free-spins_GM406889139.pdf
- http://condit-pack.com/images/60-free-spins-coin-master_GM406889139.pdf
- http://condit-pack.com/images/minecraft-java-edition-free-download_GM479516143.pdf
- http://condit-pack.com/images/coin-master-free-spins-facebook_GM406889139.pdf
- http://condit-pack.com/images/free-game-packs-for-coin-master_GM406889139.pdf
- http://condit-pack.com/images/free-robux-no-human-verification-or-survey-2021_GM431946152.pdf
- http://condit-pack.com/images/hack-coin-master-iphone_GM406889139.pdf
- http://condit-pack.com/images/free-minecraft-account_GM479516143.pdf
- http://condit-pack.com/images/united-gaming-net-coin-master-hack_GM406889139.pdf
- http://condit-pack.com/images/games-on-roblox-that-give-you-free-robux_GM431946152.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_off0000480e.bin` `20d4195db34d0a6b96156f91f98800b15a8f4f0e3da46a14fd6c972aaa28c6d4`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x480E	26428 bytes
`font_01_sfnt_off0000847c.bin` `7afc4835c6f8d200a546e15f78f642ba5dd88c8fac7df04bc3003dd1e9f7232a`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x847C	19016 bytes

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