PDF malware analysis — malicious · 51ddf1c08e41f1af

MALICIOUS

PDF

34.2 KB Created: 2021-07-05 03:38:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 2319234bef2010616abb16e5949c924e SHA-1: d12fca41c5fdc1cd43508789ba28904c535792a4 SHA-256: 51ddf1c08e41f1afe982b616e4dc862202aa3a71c29206c3f4a478dcc868b94a

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 User Execution: Malicious File

The document contains numerous URLs related to game hacks and free in-game currency, specifically for Roblox. The presence of a 'Password-protected archive handoff' heuristic suggests the document is designed to trick users into downloading an archive, likely containing malware, which is then protected by a password provided within the document. The ML classifier also 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.tw/app/431946152/robux-no-human-verification-game-hack
- http://library.ft.upnvj.ac.id/repository/free-robux-no-gift-card_GM431946152.pdf
- http://library.ft.upnvj.ac.id/repository/download-btools-hack-roblox_GM431946152.pdf
- http://library.ft.upnvj.ac.id/repository/roblox-hunter-x-hunter-lvl-hack-on-mac_GM431946152.pdf
- http://library.ft.upnvj.ac.id/repository/free-group-giver-roblox_GM431946152.pdf
- http://library.ft.upnvj.ac.id/repository/how-2-get-free-robux-2021_GM431946152.pdf
- http://library.ft.upnvj.ac.id/repository/coin-master-hack-link-2021_GM406889139.pdf
- http://library.ft.upnvj.ac.id/repository/how-get-free-robux-in-roblox_GM431946152.pdf
- http://library.ft.upnvj.ac.id/repository/roblox-a_GM431946152.pdf
- http://library.ft.upnvj.ac.id/repository/free-2021k-robux-no-password_GM431946152.pdf
- http://library.ft.upnvj.ac.id/repository/links-to-get-free-coins-in-coin-master_GM406889139.pdf
- http://library.ft.upnvj.ac.id/repository/roblox-people-girl_GM431946152.pdf
- http://library.ft.upnvj.ac.id/repository/hacks-para-roblox-para-tener-rubux-infinitos_GM431946152.pdf
- http://library.ft.upnvj.ac.id/repository/free-roblox-card-codes-not-expired-2021_GM431946152.pdf
- http://library.ft.upnvj.ac.id/repository/all-roblox-cheat-engine-hacks_GM431946152.pdf
- http://library.ft.upnvj.ac.id/repository/rbxoffers-com-free-robux_GM431946152.pdf
- http://library.ft.upnvj.ac.id/repository/free-money-in-ultimate-driving-roblox_GM431946152.pdf
- http://library.ft.upnvj.ac.id/repository/make-free-robux_GM431946152.pdf
- http://library.ft.upnvj.ac.id/repository/free-robux-no-human-verification-no-survey_GM431946152.pdf
- http://library.ft.upnvj.ac.id/repository/roblox-free-play-no-downloa_GM431946152.pdf
- http://library.ft.upnvj.ac.id/repository/how-to-get-free-robux-june-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_off00002f30.bin` `8cb21f1bcda1623df75eb144ab614051f057694c4d2215e3910bc6528a20e5e3`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2F30	22184 bytes
`font_01_sfnt_off0000605d.bin` `f84039c9361d4f9d97108524e2d84d99e94a3822b4246e645743a6f7b891171e`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x605D	19168 bytes

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