Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee5c7987fb4618cc…

MALICIOUS

PDF

34.7 KB Created: 2021-06-18 01:25:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 2ca8bb9033ba7e8fc75e994613bcaae6 SHA-1: 131bdeb847f4e4af105aa3d082a60bfa5fd56ca4 SHA-256: ee5c7987fb4618cc581bea1850c6583dbee5509a5faee3a0df299293a979847b
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded URLs and a call-to-action phrase, strongly suggesting a phishing or social engineering attempt to trick users into downloading malicious content. The ML classifier also flagged this PDF as malicious. The presence of links to free Robux and game hacks indicates a lure for potentially unwanted software or malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
    PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
  • 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/buy-free-robux-roblox-game-hack
    • http://103.68.2.77/__statics/gudangsoal/files/best-minecraft-hacked-client_GM479516143.pdf
    • http://103.68.2.77/__statics/gudangsoal/files/coin-master-daily-gift-free-spins-and-coins-link_GM406889139.pdf
    • http://103.68.2.77/__statics/gudangsoal/files/roblox-land-free-robux_GM431946152.pdf
    • http://103.68.2.77/__statics/gudangsoal/files/get-free-likes-on-tiktok_GM835599320.pdf
    • http://103.68.2.77/__statics/gudangsoal/files/moonactive-coin-master-free-spins-link_GM406889139.pdf
    • http://103.68.2.77/__statics/gudangsoal/files/free-robux-2021_GM431946152.pdf
    • http://103.68.2.77/__statics/gudangsoal/files/free-robux-games-that-actually-work-2021_GM431946152.pdf
    • http://103.68.2.77/__statics/gudangsoal/files/coin-master-free-spins_GM406889139.pdf
    • http://103.68.2.77/__statics/gudangsoal/files/coin-master-hack-2021-download_GM406889139.pdf
    • http://103.68.2.77/__statics/gudangsoal/files/free-robux-accounts_GM431946152.pdf
    • http://103.68.2.77/__statics/gudangsoal/files/free-roblox-top-battle-games_GM431946152.pdf
    • http://103.68.2.77/__statics/gudangsoal/files/free-roblox-accounts-with-robux_GM431946152.pdf
    • http://103.68.2.77/__statics/gudangsoal/files/how-to-get-minecraft-for-free-on-xbox-360_GM479516143.pdf
    • http://103.68.2.77/__statics/gudangsoal/files/coin-master-reward-link_GM406889139.pdf
    • http://103.68.2.77/__statics/gudangsoal/files/minecraft-iphone-free_GM479516143.pdf
    • http://103.68.2.77/__statics/gudangsoal/files/is-tiktok-pro-free_GM835599320.pdf
    • http://103.68.2.77/__statics/gudangsoal/files/coin-master-hack-spin-generator_GM406889139.pdf
    • http://103.68.2.77/__statics/gudangsoal/files/how-to-get-free-robux-no-verification_GM431946152.pdf
    • http://103.68.2.77/__statics/gudangsoal/files/free-ways-to-get-robux_GM431946152.pdf
    • http://103.68.2.77/__statics/gudangsoal/files/coin-master-hack-apk_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003132.bin
5ce8e5150ac7c413e6901ea99fbe04413bbcec130334703839d0e464a59df786
pdf-font-stream PDF embedded font (sfnt) at offset 0x3132 22496 bytes
font_01_sfnt_off0000633a.bin
777163e4e979f3796a412ae3c8e85f9318346e2355224cc7d1f22f63952c63f3
pdf-font-stream PDF embedded font (sfnt) at offset 0x633A 18784 bytes