PDF malware analysis — malicious · 6fad1bb92a272b5e

MALICIOUS

PDF

35.1 KB Created: 2021-06-29 00:02:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: aa94ab591a9800127f95a66aecf0e3ae SHA-1: 3acae50057c39ce93230490040045d4e0c9f9444 SHA-256: 6fad1bb92a272b5e78f58ad05361337a991a622633be929910cbc830bb8a2820

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains numerous embedded links and a primary URL pointing to content related to game hacking, specifically for Roblox and Coin Master. The ML classifier and the PDF URI heuristic strongly indicate malicious intent, likely to trick users into downloading a secondary payload or visiting a malicious site. The presence of a 'download button' lure further supports this conclusion.

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/roblox-how-to-hack-robux-with-cheat-engine-6.4-2021-game-hack
- https://www.fhccu.com/images/link-for-free-spins-on-coin-master_GM406889139.pdf
- https://www.fhccu.com/images/how-to-hack-roblox-to-get-robux_GM431946152.pdf
- https://www.fhccu.com/images/20210-robux-free_GM431946152.pdf
- https://www.fhccu.com/images/how-to-get-free-robux-on-roblox-with-inspect-element_GM431946152.pdf
- https://www.fhccu.com/images/plug-toolbox-for-minecraft-free-ios_GM479516143.pdf
- https://www.fhccu.com/images/how-to-play-coin-master_GM406889139.pdf
- https://www.fhccu.com/images/alphalife-roblox-cheats_GM431946152.pdf
- https://www.fhccu.com/images/how-to-get-tix-on-roblox-with-cheat-engine_GM431946152.pdf
- https://www.fhccu.com/images/how-to-get-free-robux-easy-hack_GM431946152.pdf
- https://www.fhccu.com/images/easy-ways-to-get-free-robux_GM431946152.pdf
- https://www.fhccu.com/images/ash-pants-on-roblox-free_GM431946152.pdf
- https://www.fhccu.com/images/how-to-get-free-avatar-animations-on-roblox_GM431946152.pdf
- https://www.fhccu.com/images/coin-master-free-spins-link-today-instagram_GM406889139.pdf
- https://www.fhccu.com/images/hack-btools-roblox-jailbreak_GM431946152.pdf
- https://www.fhccu.com/images/cheat-roblox-jailbreak-speed-2021_GM431946152.pdf
- https://www.fhccu.com/images/roblox-cs-ro-hack_GM431946152.pdf
- https://www.fhccu.com/images/roblox-promo-code-to-get-free-robux_GM431946152.pdf
- https://www.fhccu.com/images/robux-cheat-generator_GM431946152.pdf
- https://www.fhccu.com/images/how-tono-clip-through-walls-roblox-hack_GM431946152.pdf
- https://www.fhccu.com/images/coin-master-hack-program_GM406889139.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_off00002e43.bin` `f266df10ddca2cb0e213db15b6d77aa10b55e57c2dc85f821345a7c067af5ccc`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2E43	22464 bytes
`font_01_sfnt_off0000606b.bin` `68c157db8a10bfc7a65b3c64fe7387148f771bd3d88b5559f3fba4a826c3d2e3`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x606B	20248 bytes

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