Malicious PDF — malware analysis report

Static analysis result for SHA-256 484dface42e1c649…

MALICIOUS

PDF

34.9 KB Created: 2021-07-01 16:05:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 2ebe9b1399d88750117be82c64d47296 SHA-1: c201d8287dea737d788ca03b0d0a75629f8c50ce SHA-256: 484dface42e1c649d30343c8fab005b143aef2e7244b147a14f67119bffb7f02
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The document contains numerous embedded URLs and a document body that promises game hacks and cheats, indicating a lure for users to download malicious content. The presence of a 'Password-protected archive handoff' heuristic suggests the downloaded content may be encrypted to evade initial security checks. 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.co/app/431946152/how-to-hack-bloxburg-roblox-game-hack
    • http://elibrary.smknesbu.sch.id/repository/this-obby-will-get-you-free-robux-without-password_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/free-minecraft-server-hosting-24-7_GM479516143.pdf
    • http://elibrary.smknesbu.sch.id/repository/cheat-roblox-adopt-me_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/hack-como-tener-robux-gratis-en-menos-de-10-minutos_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/free-hair-advance-roblox_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/free-robux-gift-card-codes-not-used-no-human-verification_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/how-to-get-free-robux-2021_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/how-hack-in-prison-life-20-roblox-fly-hack_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/free-spins-on-coin-master-generator_GM406889139.pdf
    • http://elibrary.smknesbu.sch.id/repository/free-dominus-roblox_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/how-to-get-free-group-funds-on-roblox_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/does-roblox-premium-expire_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/blogspot-coin-master_GM406889139.pdf
    • http://elibrary.smknesbu.sch.id/repository/games-that-give-you-free-robux_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/roblox-free-shoes_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/retail-tycoon-hack-roblox_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/easy-way-to-get-robux_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/pubg-70-uc_GM1330123889.pdf
    • http://elibrary.smknesbu.sch.id/repository/get-me-robux-for-free_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/how-do-i-get-free-robux-on-roblox_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003331.bin
e74c207e0233f8a7924f0e430b76e9022afa92efe8ec1b57ef9593dc5db201be		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3331 21864 bytes
font_01_sfnt_off0000637b.bin
d41b5c703b9d779bbb1252c30fb0b9ff0bbd3c52365676c4f94de934d0521a76		 pdf-font-stream PDF embedded font (sfnt) at offset 0x637B 18960 bytes

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