Malicious PDF — malware analysis report

Static analysis result for SHA-256 b675656eafc8b450…

MALICIOUS

PDF

36.0 KB Created: 2021-06-29 20:14:07 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 6ba7b5a8d9aae6bca9d1233e885998fa SHA-1: 50b8280ce91bccf31cf6480564b78191ddf8b974 SHA-256: b675656eafc8b4500d5cf3e11eea2ae22f178fad9733b577a1ac06194cb606f5
62 Risk Score

Malware Insights

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

The document contains embedded URLs and a primary malicious URL, http://netcdn.co/app/431946152/19-diamond-roblox-hack-game-hack, which likely leads to the download of a malicious application. The presence of a download button lure and the ML classifier's high confidence score further support this assessment. The document's content and associated URLs suggest a social engineering attempt to trick users into downloading potentially harmful software disguised as game cheats.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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/431946152/19-diamond-roblox-hack-game-hack
    • https://www.elearningmtsn1tanggamus.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link-blogspot-2021_GM406889139.pdf
    • https://elearningmtsn1tanggamus.sch.id/__statics/gudangsoal/files/how-to-get-a-halo-in-roblox-royale-high-hack_GM431946152.pdf
    • https://elearningmtsn1tanggamus.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-accounts-on-phone_GM431946152.pdf
    • https://elearningmtsn1tanggamus.sch.id/__statics/gudangsoal/files/coin-master-daily-free-spins-link_GM406889139.pdf
    • https://elearningmtsn1tanggamus.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link-2021-no-verification-deutsch_GM406889139.pdf
    • https://elearningmtsn1tanggamus.sch.id/__statics/gudangsoal/files/haktuts-coin-master-free-spin-link_GM406889139.pdf
    • https://elearningmtsn1tanggamus.sch.id/__statics/gudangsoal/files/coin-master-hacks-no-downloading_GM406889139.pdf
    • https://elearningmtsn1tanggamus.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-with-editthiscookie_GM431946152.pdf
    • https://www.elearningmtsn1tanggamus.sch.id/__statics/gudangsoal/files/how-to-get-free-avatar-animations-roblox_GM431946152.pdf
    • https://www.elearningmtsn1tanggamus.sch.id/__statics/gudangsoal/files/roblox-hack-for-kids_GM431946152.pdf
    • https://elearningmtsn1tanggamus.sch.id/__statics/gudangsoal/files/hack-minecraft_GM479516143.pdf
    • https://www.elearningmtsn1tanggamus.sch.id/__statics/gudangsoal/files/easy-way-to-get-robux_GM431946152.pdf
    • https://www.elearningmtsn1tanggamus.sch.id/__statics/gudangsoal/files/can-you-give-me-free-robux_GM431946152.pdf
    • https://elearningmtsn1tanggamus.sch.id/__statics/gudangsoal/files/coin-and-spin_GM406889139.pdf
    • https://elearningmtsn1tanggamus.sch.id/__statics/gudangsoal/files/wwwcheatsgurucom-pc-roblox-cheats-codes_GM431946152.pdf
    • https://elearningmtsn1tanggamus.sch.id/__statics/gudangsoal/files/minecraft-pe-free-apk_GM479516143.pdf
    • https://www.elearningmtsn1tanggamus.sch.id/__statics/gudangsoal/files/free-role-in-coin-master_GM406889139.pdf
    • https://www.elearningmtsn1tanggamus.sch.id/__statics/gudangsoal/files/roblox-how-to-sell-a-t-shirt-for-free_GM431946152.pdf
    • https://elearningmtsn1tanggamus.sch.id/__statics/gudangsoal/files/free-characters-without-robux-2021_GM431946152.pdf
    • https://www.elearningmtsn1tanggamus.sch.id/__statics/gudangsoal/files/how-to-get-free-spins-on-coin-master-2021_GM406889139.pdf
    • https://www.roblox.com/.I
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000334b.bin
34aed8ef42981950497c9ee3ba91d8f90ad82c456c834651f6a3e1747ce78b4c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x334B 22656 bytes
font_01_sfnt_off000065e3.bin
17a1cbb31173d293497734daa8d08be43faa6711b43de6bc6ffab6c0eb77c789		 pdf-font-stream PDF embedded font (sfnt) at offset 0x65E3 19648 bytes

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