PDF malware analysis — malicious · b18d66186834ba3f

MALICIOUS

PDF

34.6 KB Created: 2021-07-05 12:13:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 020b46c112c9f146a20f709b714f99a3 SHA-1: 72b2680302ca4355435f6d518f0d4819a0214074 SHA-256: b18d66186834ba3fb4c773457b4e80a6531440784e9a3f83c12bb931d60c3eaa

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 designed to appear as download pages for game cheats or in-game currency. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of such links, suggesting a malicious intent to redirect users to potentially harmful content. The ML classifier also strongly flagged this PDF as malicious.

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/blox-world-free-robux-game-hack
- http://ggmtc.net/userfiles/files/minecraft-pocket-edition-download-free-pe-calculator_GM479516143.pdf
- http://ggmtc.net/userfiles/files/free-robux-only-username_GM431946152.pdf
- http://ggmtc.net/userfiles/files/tiktok-likes-free_GM835599320.pdf
- http://ggmtc.net/userfiles/files/infinite-robux_GM431946152.pdf
- http://ggmtc.net/userfiles/files/free-spin-online-tool-coin-master_GM406889139.pdf
- http://ggmtc.net/userfiles/files/free-spins-for-coin-master_GM406889139.pdf
- http://ggmtc.net/userfiles/files/coin-master-100-free-spins-link_GM406889139.pdf
- http://ggmtc.net/userfiles/files/coin-master-free-2021-spin-link-today_GM406889139.pdf
- http://ggmtc.net/userfiles/files/how-to-get-minecraft-for-free-on-xbox_GM479516143.pdf
- http://ggmtc.net/userfiles/files/can-my-childs-friend-hack-roblox-game_GM431946152.pdf
- http://ggmtc.net/userfiles/files/bit-ly-coin-master-hack_GM406889139.pdf
- http://ggmtc.net/userfiles/files/can-you-really-hack-coin-master-ios_GM406889139.pdf
- http://ggmtc.net/userfiles/files/roblox-variable-modifier-script-cheat_GM431946152.pdf
- http://ggmtc.net/userfiles/files/how-to-get-free-robux-promo-codes_GM431946152.pdf
- http://ggmtc.net/userfiles/files/best-minecraft-hacked-client-2021_GM479516143.pdf
- http://ggmtc.net/userfiles/files/how-to-get-free-robux-hack-real_GM431946152.pdf
- http://ggmtc.net/userfiles/files/how-can-i-get-free-spins-on-coin-master_GM406889139.pdf
- http://ggmtc.net/userfiles/files/download-hacked-games-coin-master_GM406889139.pdf
- http://ggmtc.net/userfiles/files/coin-master-daily-free-spins-2021_GM406889139.pdf
- http://ggmtc.net/userfiles/files/how-to-hack-roblox-with-cheat-engine-2021_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_off00002f3c.bin` `3576d5acf0f55c221105c2c80320692a9a5142f97615e055f4d5764d2d601a66`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2F3C	22972 bytes
`font_01_sfnt_off000061aa.bin` `42e554ef2c91bbb5af350d4b1f45d0a0f829397bc38bc7c2009f5bdaf8074c39`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x61AA	19160 bytes

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