PDF malware analysis — malicious · edc5dcabfd8c7b94

MALICIOUS

PDF

34.5 KB Created: 2021-06-30 12:42:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 7d2fd85e1af7eb2c141bf0cb3d01f3f7 SHA-1: 6ac838f9ed4bbcc2b20ac44206f0bd96839ecaa5 SHA-256: edc5dcabfd8c7b94c09f29bfbab3e5670dec709b6ec8a8e9f9f783a4dc34432a

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains numerous embedded URLs and a document body that promotes downloading a 'Roblox cheat' tool. The heuristic 'PDF_SEO_LINK_FARM' indicates a mass of external links, suggesting a tactic to distribute malicious content or drive traffic. The ML classifier strongly flagged this PDF as malicious, supporting the assessment of a deceptive lure.

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/beyond-cheat-roblox-game-hack
- https://opac.itp.ac.id/repository/how-to-get-free-robux-in-roblox-without-a-generator_GM431946152.pdf
- https://opac.itp.ac.id/repository/roblox-noob-outfit-for-free_GM431946152.pdf
- https://opac.itp.ac.id/repository/how-to-get-expensive-roblox-items-for-free_GM431946152.pdf
- https://opac.itp.ac.id/repository/free-roblox-badges_GM431946152.pdf
- https://opac.itp.ac.id/repository/descargar-hack-de-roblox-jailbreak-2021_GM431946152.pdf
- https://opac.itp.ac.id/repository/how-to-upload-multiple-music-to-roblox-for-free-2021_GM431946152.pdf
- https://opac.itp.ac.id/repository/daily-free-spins-and-coins-coin-master_GM406889139.pdf
- https://opac.itp.ac.id/repository/how-to-speed-hack-roblox-youtube_GM431946152.pdf
- https://opac.itp.ac.id/repository/best-roblox-hack-dlls-2021_GM431946152.pdf
- https://opac.itp.ac.id/repository/robux-gift-card-free-codes-2021_GM431946152.pdf
- https://opac.itp.ac.id/repository/minecraft-app-store-free_GM479516143.pdf
- https://opac.itp.ac.id/repository/wurst-client-18-9_GM479516143.pdf
- https://opac.itp.ac.id/repository/free-texture-packs-for-minecraft-pe_GM479516143.pdf
- https://opac.itp.ac.id/repository/free-2021-robux_GM431946152.pdf
- https://opac.itp.ac.id/repository/how-to-get-free-robux-without-human-verification-on-pc_GM431946152.pdf
- https://opac.itp.ac.id/repository/pirate-simulator-roblox-hack_GM431946152.pdf
- https://opac.itp.ac.id/repository/hack-admin-roblox-nanteroblox_GM431946152.pdf
- https://opac.itp.ac.id/repository/how-to-get-free-robux-hack-2021_GM431946152.pdf
- https://opac.itp.ac.id/repository/free-coin-and-spin-for-coin-master_GM406889139.pdf
- https://opac.itp.ac.id/repository/free-robux-without-downloading-stuff_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_off00002fe9.bin` `20b33b2f024041d3f5069ee2fba22a3012206110085fee29c305feb1c7f32a58`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2FE9	22340 bytes
`font_01_sfnt_off00006194.bin` `7c043c0177da07765017e4255d0110a9e815a365fcb7beaa9495d98a94723342`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6194	19108 bytes

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