Malicious PDF — malware analysis report

Static analysis result for SHA-256 294e8f2ac53ff997…

MALICIOUS

PDF

35.5 KB Created: 2021-07-06 06:22:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: f27e62a5f02d8761d063aeec04c3657a SHA-1: 71859d912413760d3bca760a3dec6a669f9232a7 SHA-256: 294e8f2ac53ff997899d799d5070a2adc5f5f7831b5aeb311d230eeef4e136c5
82 Risk Score

Malware Insights

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

The PDF document contains a lure for a fake download, specifically mentioning 'tiktok-free-hearts-2021-game-hack' and embedding a URL to netcdn.tw. The heuristic 'SE_CLIPBOARD_COMMAND_LURE' indicates the document likely instructs the user to copy and paste content into a command-line interface, suggesting an attempt to execute a malicious payload. The ML classifier strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE
    Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
  • 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/835599320/tiktok-free-hearts-2021-game-hack
    • https://e-learning.manbangkalan.sch.id/__statics/gudangsoal/files/minecraft-windows-10-edition-free_GM479516143.pdf
    • https://e-learning.manbangkalan.sch.id/__statics/gudangsoal/files/free-followers-for-tiktok_GM835599320.pdf
    • https://e-learning.manbangkalan.sch.id/__statics/gudangsoal/files/free-spins-coin-master-links-blogspot_GM406889139.pdf
    • https://e-learning.manbangkalan.sch.id/__statics/gudangsoal/files/free-minecraft-server-hosting_GM479516143.pdf
    • https://e-learning.manbangkalan.sch.id/__statics/gudangsoal/files/coin-master-free-spins-and-coins_GM406889139.pdf
    • https://e-learning.manbangkalan.sch.id/__statics/gudangsoal/files/how-to-get-robux-for-free-2021_GM431946152.pdf
    • https://e-learning.manbangkalan.sch.id/__statics/gudangsoal/files/roblox-no-download-hack_GM431946152.pdf
    • https://e-learning.manbangkalan.sch.id/__statics/gudangsoal/files/coin-master-hack-https-coinms-net_GM406889139.pdf
    • https://e-learning.manbangkalan.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-2021-youtube_GM431946152.pdf
    • https://e-learning.manbangkalan.sch.id/__statics/gudangsoal/files/roblox-work-at-a-pizza-place-cheats_GM431946152.pdf
    • https://e-learning.manbangkalan.sch.id/__statics/gudangsoal/files/haktuts-coin-master-free-daily-spins_GM406889139.pdf
    • https://e-learning.manbangkalan.sch.id/__statics/gudangsoal/files/tshirt-hacker-roblox-png_GM431946152.pdf
    • https://e-learning.manbangkalan.sch.id/__statics/gudangsoal/files/how-to-hack-a-roblox-account-using-command-prompt_GM431946152.pdf
    • https://e-learning.manbangkalan.sch.id/__statics/gudangsoal/files/roblox-mcso-hack-script-pastebin_GM431946152.pdf
    • https://e-learning.manbangkalan.sch.id/__statics/gudangsoal/files/cheat-monnaie-roblox_GM431946152.pdf
    • https://e-learning.manbangkalan.sch.id/__statics/gudangsoal/files/coin-master-hack-apk-download-2021_GM406889139.pdf
    • https://e-learning.manbangkalan.sch.id/__statics/gudangsoal/files/coin-master-rewards_GM406889139.pdf
    • https://e-learning.manbangkalan.sch.id/__statics/gudangsoal/files/how-to-get-more-robux-for-free_GM431946152.pdf
    • https://e-learning.manbangkalan.sch.id/__statics/gudangsoal/files/roblox-admin-hack-best_GM431946152.pdf
    • https://e-learning.manbangkalan.sch.id/__statics/gudangsoal/files/free-robux-games_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003610.bin
40acec613dcba124742041c53d437992ead2d485e7ec9787a3d71307fafded1b
pdf-font-stream PDF embedded font (sfnt) at offset 0x3610 22448 bytes
font_01_sfnt_off000067cd.bin
3216537155007117b91e57a7abf7bbfd9b7dc3d8087420b5ec37eec4a3e4964b
pdf-font-stream PDF embedded font (sfnt) at offset 0x67CD 18376 bytes