Malicious PDF — malware analysis report

Static analysis result for SHA-256 a7b6351cf04edc43…

MALICIOUS

PDF

33.3 KB Created: 2021-07-04 13:00:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 7e3e6c7015bada0929d888c989e0a3b3 SHA-1: 212147c58deddd2eee5c6211dddd74ecec314dd6 SHA-256: a7b6351cf04edc4309366242274e2d90f0e4cb846f0fa0a95902923ff87752f5
82 Risk Score

Malware Insights

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

The PDF document contains embedded URLs and a visual download lure, suggesting it is designed to trick users into downloading a malicious file. The heuristic 'SE_PASSWORD_ARCHIVE_LURE' indicates that the document may provide password instructions, often used to bypass security scanning for encrypted payloads. The primary URL http://netcdn.tw/app/479516143/mcpe-optifine-game-hack is highly suspicious and likely serves as the initial download point for a secondary payload.

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/479516143/mcpe-optifine-game-hack
    • http://elibrary.smknesbu.sch.id/repository/how-hack-roblox-accounts_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/is-minecraft-free_GM479516143.pdf
    • http://elibrary.smknesbu.sch.id/repository/how-to-add-robux-to-your-account-for-free_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/how-to-get-free-robux-for-free_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/roblox-download-apk-hack_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/instantrobux_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/how-do-u-get-free-robux-2021_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/real-roblox_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/www-bandicam-com-free-robux_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/free-robux-sitecom_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/free-coins-coin-master-today_GM406889139.pdf
    • http://elibrary.smknesbu.sch.id/repository/boku-no-roblox-remastered-buy-hack_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/claim-gg-free-robux_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/free-download-roblox-hack_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/free-robux-1-click_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/roblox-jailbreak-cheat-engine-hacks_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/coin-master-free-spins-link-2021_GM406889139.pdf
    • http://elibrary.smknesbu.sch.id/repository/free-account-passwords-for-roblox_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/roblox-hack-robux-infinito-download-pc_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/roblox-girl-games-free_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002e7f.bin
4eaa45c467360aceba895f91ea36a4b2808a8940b2ecdedf38b614c211f1b914		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2E7F 22628 bytes
font_01_sfnt_off00006018.bin
4281d751d044eda5a0802c92c9bf6cf900aad7f4c7ac23413fbf7cf459a64227		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6018 18032 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.