Malicious PDF — malware analysis report

Static analysis result for SHA-256 6b8e65154433fb50…

MALICIOUS

PDF

35.3 KB Created: 2021-06-27 14:55:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 03980ab8def9a30cf2f0dc55a587ae91 SHA-1: 1fb0aa1f00c0155ccb4be86deab3c67515b5e823 SHA-256: 6b8e65154433fb508631f8a4f18508f6680c24623464ff4021c730e862d3934c
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains numerous embedded URLs and a document body that lures the user into downloading a script, likely a game hack or cheat. The presence of a visual download button and instructions for handling password-protected archives further suggest a malicious workflow aimed at tricking the user into executing a payload. 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/roblox-anti-cheat-bypass-script-game-hack
    • http://elibrary.smknesbu.sch.id/repository/coin-master-unlimited-free-spins-link-2021_GM406889139.pdf
    • http://elibrary.smknesbu.sch.id/repository/get-free-gold-cards-in-coin-master_GM406889139.pdf
    • http://elibrary.smknesbu.sch.id/repository/how-to-get-free-robux-no-scam_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/coin-master-hack_GM406889139.pdf
    • http://elibrary.smknesbu.sch.id/repository/roblox-generator_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/mobile-for-free-roblox_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/how-to-tell-if-your-account-is-hacked-on-roblox_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/how-do-you-get-roblox-for-free_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/comandos-hack-para-roblox_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/free-dominus-roblox_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/how-to-be-rich-on-roblox-for-free_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/free-spin-coin-master-2021-link_GM406889139.pdf
    • http://elibrary.smknesbu.sch.id/repository/free-robux-no-human-verification-or-survey-or-download_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/free-robux-no-download_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/cool-roblox-t-shirts-free-shipping_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/roblox-hack-download-mobile_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/robux-free-pw_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/free-roblox-scibt-pack-exploit_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/free-robux-generator-no-survey-no-download-no-human-verification_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/free-minecraft-account-and-password-2021_GM479516143.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000031e1.bin
3c704961c5b5150843128c3f52f0b5273c2f8701abea3eeed58451c3f862b67e
pdf-font-stream PDF embedded font (sfnt) at offset 0x31E1 22684 bytes
font_01_sfnt_off00006492.bin
cafeb30bf1d2783e88d34d2ff21879d025a76c782f99e13c114b4ab1d3d18f65
pdf-font-stream PDF embedded font (sfnt) at offset 0x6492 19232 bytes