Malicious PDF — malware analysis report

Static analysis result for SHA-256 592dd28a051d02e2…

MALICIOUS

PDF

42.3 KB Created: 2021-04-27 08:12:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 0a2d140b1219e467be37f4864e0cc0b2 SHA-1: 5c49632244e632b4c7159a40bd3b61b4105316a2 SHA-256: 592dd28a051d02e2cbf4f66215bc989a15481cdc0eff03b68e6300d20c0be306
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded URLs and text that attempts to lure the user into clicking a link to download a tool or exploit for the game Roblox. The heuristic 'SE_PASSWORD_ARCHIVE_LURE' suggests that the document may be part of a multi-stage attack where a password is provided to decrypt a malicious payload. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9941

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 https://netcdn.xyz/app/431946152/how-to-get-btool-and-hack-roblox-jailbreak-2021-febuary-game-hack
    • https://lib-stie.yai.ac.id/repository/roblox-after-effects-download-free.pdf
    • https://lib-stie.yai.ac.id/repository/roblox-hack-accounts-generator.pdf
    • https://lib-stie.yai.ac.id/repository/hack-para-tener-robux-gratis-sorteo-de-100-robux.pdf
    • https://lib-stie.yai.ac.id/repository/roblox-buy-robux-for-free.pdf
    • https://lib-stie.yai.ac.id/repository/roblox-hack-stage-samim-sinim-youtube-aid.pdf
    • https://lib-stie.yai.ac.id/repository/how-to-get-free-catalog-items-on-roblox-2021.pdf
    • https://lib-stie.yai.ac.id/repository/roblox-jailbreak-cheat-engine-noclip.pdf
    • https://lib-stie.yai.ac.id/repository/hoow-to-get-free-robux.pdf
    • https://lib-stie.yai.ac.id/repository/top-12-groups-on-roblox-that-give-free-robux.pdf
    • https://lib-stie.yai.ac.id/repository/how-to-get-free-robux-no-password-on-ipad.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000415e.bin
7aa9a862ea9cc7357f2f762c987760e85f3db9753cf9c14eda6ceebd33354f4f
pdf-font-stream PDF embedded font (sfnt) at offset 0x415E 26868 bytes
font_01_sfnt_off00007f19.bin
707bd7c672e56508d116613ad093717e0b8d0a3e4824547e32094fc543d319ba
pdf-font-stream PDF embedded font (sfnt) at offset 0x7F19 19796 bytes