Malicious PDF — malware analysis report

Static analysis result for SHA-256 d9c098a9da231257…

MALICIOUS

PDF

34.8 KB Created: 2021-07-08 22:23:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: ac431dc618e59dfa673548ab80c2ac1c SHA-1: 7c40662e43cfe727e371c0a07e77c3961c117f93 SHA-256: d9c098a9da2312574f26dbaa1f500d9c404a5876d24777aec9d16248accc3f30
82 Risk Score

Malware Insights

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

The PDF document contains a fake CAPTCHA lure, designed to trick users into clicking a link to download a malicious file. The embedded URL points to a suspicious domain hosting what is presented as a Minecraft hack client. This suggests a social engineering attack aimed at delivering malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA
    Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
  • 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/minecraft-hack-client-download-game-hack
    • https://e-learning.man5crbn.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-xtimothyy_GM431946152.pdf
    • https://e-learning.man5crbn.sch.id/__statics/gudangsoal/files/what-games-on-roblox-give-you-free-robux_GM431946152.pdf
    • https://e-learning.man5crbn.sch.id/__statics/gudangsoal/files/minecraft-free-download_GM479516143.pdf
    • https://e-learning.man5crbn.sch.id/__statics/gudangsoal/files/ways-to-earn-robux_GM431946152.pdf
    • https://e-learning.man5crbn.sch.id/__statics/gudangsoal/files/can-you-get-free-robux-on-roblox_GM431946152.pdf
    • https://e-learning.man5crbn.sch.id/__statics/gudangsoal/files/get-5-robux-for-free_GM431946152.pdf
    • https://e-learning.man5crbn.sch.id/__statics/gudangsoal/files/free-spins-and-coins-coin-master_GM406889139.pdf
    • https://e-learning.man5crbn.sch.id/__statics/gudangsoal/files/free-spins-coin-master-hack-2021_GM406889139.pdf
    • https://e-learning.man5crbn.sch.id/__statics/gudangsoal/files/coin-master-card-hack-2021_GM406889139.pdf
    • https://e-learning.man5crbn.sch.id/__statics/gudangsoal/files/coin-master-100-free-spins-link_GM406889139.pdf
    • https://e-learning.man5crbn.sch.id/__statics/gudangsoal/files/coin-master-links-for-free-spins-2021_GM406889139.pdf
    • https://e-learning.man5crbn.sch.id/__statics/gudangsoal/files/robux-free-co_GM431946152.pdf
    • https://e-learning.man5crbn.sch.id/__statics/gudangsoal/files/client-minecraft_GM479516143.pdf
    • https://e-learning.man5crbn.sch.id/__statics/gudangsoal/files/minecraft-windows-free_GM479516143.pdf
    • https://e-learning.man5crbn.sch.id/__statics/gudangsoal/files/free-item-going-limited-in-roblox_GM431946152.pdf
    • https://e-learning.man5crbn.sch.id/__statics/gudangsoal/files/coin-master-free-spin-codes_GM406889139.pdf
    • https://e-learning.man5crbn.sch.id/__statics/gudangsoal/files/is-roblox-free-for-pc_GM431946152.pdf
    • https://e-learning.man5crbn.sch.id/__statics/gudangsoal/files/free-mad-games-roblox_GM431946152.pdf
    • https://e-learning.man5crbn.sch.id/__statics/gudangsoal/files/how-to-get-free-coins-on-coin-master-hack_GM406889139.pdf
    • https://e-learning.man5crbn.sch.id/__statics/gudangsoal/files/free-coins-coin-master-link_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000316d.bin
03a998700168084e6e82c5eadb68ded3a8d6f4961c8368aa2e3d219bd4c825a2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x316D 22660 bytes
font_01_sfnt_off00006419.bin
c45ee2d1dd43e8513d66b509938ceb122ec1fdfa533c8cde096dea51f38d5c86		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6419 18748 bytes

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