PDF malware analysis — malicious · 357af8a4960178fa

MALICIOUS

PDF

33.3 KB Created: 2021-06-25 11:25:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 900c2096899ea62fbda91037398f9129 SHA-1: a2e9a6b08390d188d2db532c2185e8e59907dad7 SHA-256: 357af8a4960178fa9f513a905540e939d2e85080570fa82ad7dc5d18e6fc9379

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains numerous embedded links, forming a link farm, that direct users to sites offering game cheats and hacks. The ML classifier strongly indicated maliciousness, and the presence of external URIs suggests an attempt to redirect users to download further content. The document body and embedded links indicate a lure for game-related exploits, likely to distribute malware.

Machine Learning

Nyx PDF Classifier malicious score 0.9824

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/free-makeu-base-roblox-game-hack
- http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/free-roblox-cards-pin-number_GM431946152.pdf
- http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/can-i-cheat-on-roblox-vip-servers_GM431946152.pdf
- http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/how-do-you-get-free-robux-without-doing-anything_GM431946152.pdf
- http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/free-robux-games-that-actually-work-2021_GM431946152.pdf
- http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/can-you-get-free-robux-on-roblox_GM431946152.pdf
- http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/el-mejore-hack-de-roblox-marzo_GM431946152.pdf
- http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/console-hack-for-roblox_GM431946152.pdf
- http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/free-coin-master-stuff_GM406889139.pdf
- http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/https-pastebin-com-robux-hack_GM431946152.pdf
- http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/village-coin_GM406889139.pdf
- http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/coin-master-free-spin-app-2021_GM406889139.pdf
- http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/jailbreak-cheats-roblox-money_GM431946152.pdf
- http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/coin-master-hack-version-download-2021-android_GM406889139.pdf
- http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/hacks-for-roblox-jailbreak_GM431946152.pdf
- http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/hack-bleach-new-hope-roblox_GM431946152.pdf
- http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/coin-master-mod-free-download_GM406889139.pdf
- http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/free-2021-robux_GM431946152.pdf
- http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/free-robux-codes-generator_GM431946152.pdf
- http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/free-roblox-gift-card-codes-that-haven-39_GM431946152.pdf
- http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/get-400-robux-for-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_off00002c8d.bin` `f2cac519671689a4ace13ac3ce40318ad970cb6018d7bf68486337eab65b7832`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2C8D	21944 bytes
`font_01_sfnt_off00005d08.bin` `6bed4da0030475bcfb5ef12edb25d2d509066fe93b5ac9f62b434fafc6bdd28b`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5D08	19156 bytes

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