PDF malware analysis — malicious · 9234dd6b94cf2151

MALICIOUS

PDF

34.0 KB Created: 2021-06-22 03:28:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 23b30445146296123b60be345b3f6f74 SHA-1: ad8512ca500e27edb2e2d7dcb32fbf067ce55c32 SHA-256: 9234dd6b94cf21512b696a2ecda3532ad5fd54e0a147c982c3c2865726bdcc5f

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document contains numerous embedded links and a document body that promotes 'hacks' for popular games, aiming to trick users into downloading malicious content. The presence of a large number of external links, many with numeric slugs, suggests a link farm designed to host or redirect to malicious payloads. The ML classifier also strongly indicated maliciousness.

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.co/app/431946152/how-to-hack-in-roblox-accounts-game-hack
- https://www.unicor.co.th/assets/editoruploads/files/coin-master-daily-free-spins-and-coins-2021_GM406889139.pdf
- https://www.unicor.co.th/assets/editoruploads/files/coin-master-hack-apk-download-2021_GM406889139.pdf
- https://www.unicor.co.th/assets/editoruploads/files/free-antlers-roblox_GM431946152.pdf
- https://www.unicor.co.th/assets/editoruploads/files/coin-master-free-spins-and-coins-today-gift-reward_GM406889139.pdf
- https://www.unicor.co.th/assets/editoruploads/files/coin-master-free-spin-and-coin_GM406889139.pdf
- https://www.unicor.co.th/assets/editoruploads/files/how-to-get-free-robux-easy-no-download_GM431946152.pdf
- https://www.unicor.co.th/assets/editoruploads/files/roblox-robux-hack_GM431946152.pdf
- https://www.unicor.co.th/assets/editoruploads/files/easy-how-to-get-free-robux_GM431946152.pdf
- https://www.unicor.co.th/assets/editoruploads/files/free-coin-master-spins-for-today_GM406889139.pdf
- https://www.unicor.co.th/assets/editoruploads/files/free-robux-no-human-verification-generator_GM431946152.pdf
- https://www.unicor.co.th/assets/editoruploads/files/how-to-get-free-roebucks-in-roblox_GM431946152.pdf
- https://www.unicor.co.th/assets/editoruploads/files/coin-master-hacks-iphone_GM406889139.pdf
- https://www.unicor.co.th/assets/editoruploads/files/tiktok-fans-free_GM835599320.pdf
- https://www.unicor.co.th/assets/editoruploads/files/how-to-get-free-spins-on-coin-master-ios_GM406889139.pdf
- https://www.unicor.co.th/assets/editoruploads/files/raindrop-roblox-hacks_GM431946152.pdf
- https://www.unicor.co.th/assets/editoruploads/files/how-to-get-free-robux-hack_GM431946152.pdf
- https://www.unicor.co.th/assets/editoruploads/files/get-free-robux-generator_GM431946152.pdf
- https://www.unicor.co.th/assets/editoruploads/files/roblox-sprinting-simulator-hack_GM431946152.pdf
- https://www.unicor.co.th/assets/editoruploads/files/free-spins-coin-master-cheats_GM406889139.pdf
- https://www.unicor.co.th/assets/editoruploads/files/how-to-get-free-robux-for-kids_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_off00002e42.bin` `eddaf5252f0379cb24fff7d2a2c255f9c4c22367336ba3f2f142fdda983cd182`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2E42	22232 bytes
`font_01_sfnt_off00005f80.bin` `05ac4033de35e9624c1a1408c0436e12714e72806bb69d37199f054601859069`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5F80	19064 bytes

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