PDF malware analysis — malicious · 8c738683054f55d1

MALICIOUS

PDF

32.9 KB Created: 2021-07-01 08:26:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 2016c179cd930af95dc40bcddf4b29ea SHA-1: a9805d3b0c515a64ad565c562d7108e20f478462 SHA-256: 8c738683054f55d1a305d4a1475a3bb72e5a271bc253af634b5aa73c3562daf0

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The document contains numerous embedded URLs and a primary external URI pointing to game-related cheats and hacks, suggesting a lure for users to download potentially malicious files. The presence of a 'password-protected archive' heuristic further indicates an attempt to conceal a malicious payload, likely delivered via a link. The ML classifier strongly flagged this PDF as malicious.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

Heuristics 4

Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE

Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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/roblox-cheats-cbro-game-hack
- http://winnerwater.com.tw/image/data/files/free-robux-ad-videos-for-robux_GM431946152.pdf
- http://winnerwater.com.tw/image/data/files/minecraft-free-reddit_GM479516143.pdf
- http://winnerwater.com.tw/image/data/files/how-to-get-free-spins-on-coin-master_GM406889139.pdf
- http://winnerwater.com.tw/image/data/files/free-roblox-scripters_GM431946152.pdf
- http://winnerwater.com.tw/image/data/files/como-conseguir-monedas-en-roblox-hack_GM431946152.pdf
- http://winnerwater.com.tw/image/data/files/how-to-get-free-robux-easy-hack_GM431946152.pdf
- http://winnerwater.com.tw/image/data/files/free-robux-games_GM431946152.pdf
- http://winnerwater.com.tw/image/data/files/how-to-get-free-spins-coin-master_GM406889139.pdf
- http://winnerwater.com.tw/image/data/files/roblox-cheat-codes_GM431946152.pdf
- http://winnerwater.com.tw/image/data/files/coin-master-hack-app-ios_GM406889139.pdf
- http://winnerwater.com.tw/image/data/files/how-to-get-spins-on-coin-master-hack_GM406889139.pdf
- http://winnerwater.com.tw/image/data/files/free-2021-robux-code_GM431946152.pdf
- http://winnerwater.com.tw/image/data/files/coin-master-game-free_GM406889139.pdf
- http://winnerwater.com.tw/image/data/files/get-robux-today_GM431946152.pdf
- http://winnerwater.com.tw/image/data/files/minecraft-hack-app_GM479516143.pdf
- http://winnerwater.com.tw/image/data/files/coin-master-free-spins-link_GM406889139.pdf
- http://winnerwater.com.tw/image/data/files/how-to-get-free-skin-robux-in-roblox_GM431946152.pdf
- http://winnerwater.com.tw/image/data/files/how-to-get-free-robux-on-ipad_GM431946152.pdf
- http://winnerwater.com.tw/image/data/files/minecraft-free-school_GM479516143.pdf
- http://winnerwater.com.tw/image/data/files/roblox-how-to-get-every-emote-free_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_off00002d08.bin` `b41c3bf469b18f03b3d6ebbef8df504cba3eab1b8cdfd783535dbc5466aa292c`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2D08	21380 bytes
`font_01_sfnt_off00005c06.bin` `ce356071391b1f0709515d597346fa4044fe101bd9b2d6f7e979c0a8dde79d41`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5C06	18756 bytes

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