Malicious PDF — malware analysis report

Static analysis result for SHA-256 6b48a62b4b81a52e…

MALICIOUS

PDF

42.4 KB Created: 2021-05-15 11:10:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 96aa182b39e3471bb2dce3a6ca2bf7a5 SHA-1: 1c418968b5cdc844dc5e098de021d21dc7b5c0aa SHA-256: 6b48a62b4b81a52e4d3625b25b4661287cad90d3875a66f52669f0cf73559df8
82 Risk Score

Malware Insights

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

The document presents a fake CAPTCHA lure to trick users into clicking a link, which is a common social engineering tactic. The embedded URLs, such as https://netcdn.xyz/app/406889139/coin-master-free-card-link-today-game-hack, likely lead to further malicious content or downloads. No scripts were extracted, but the PDF structure and heuristics strongly indicate a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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 https://netcdn.xyz/app/406889139/coin-master-free-card-link-today-game-hack
    • http://miperwanida.me/__statics/gudangsoal/files/coin-master-free-spin-and-coin-links_GM406889139.pdf
    • http://miperwanida.me/__statics/gudangsoal/files/minecraft-cheats-switch_GM479516143.pdf
    • http://miperwanida.me/__statics/gudangsoal/files/how-do-i-earn-robux_GM431946152.pdf
    • http://miperwanida.me/__statics/gudangsoal/files/how-to-make-a-minecraft-java-server-for-free_GM479516143.pdf
    • http://miperwanida.me/__statics/gudangsoal/files/roblox-robux-page_GM431946152.pdf
    • http://miperwanida.me/__statics/gudangsoal/files/master-coin-free-spin_GM406889139.pdf
    • http://miperwanida.me/__statics/gudangsoal/files/easy-how-to-get-free-robux_GM431946152.pdf
    • http://miperwanida.me/__statics/gudangsoal/files/free-robux-without-survey_GM431946152.pdf
    • http://miperwanida.me/__statics/gudangsoal/files/free-coin-master-cards_GM406889139.pdf
    • http://miperwanida.me/__statics/gudangsoal/files/free-robux-generator-no-survey-no-download-no-human-verification_GM431946152.pdf
    • http://miperwanida.me/__statics/gudangsoal/files/roblox-gang-rape_GM431946152.pdf
    • http://miperwanida.me/__statics/gudangsoal/files/coin-master-fb-free-spins-link_GM406889139.pdf
    • http://miperwanida.me/__statics/gudangsoal/files/how-to-get-free-coins-on-coin-master-iphone_GM406889139.pdf
    • http://miperwanida.me/__statics/gudangsoal/files/free-robux-without-offers_GM431946152.pdf
    • http://miperwanida.me/__statics/gudangsoal/files/coin-master-spins-hack_GM406889139.pdf
    • http://miperwanida.me/__statics/gudangsoal/files/free-spin-link-for-coin-master_GM406889139.pdf
    • http://miperwanida.me/__statics/gudangsoal/files/hack-coin-master-net_GM406889139.pdf
    • http://miperwanida.me/__statics/gudangsoal/files/how-can-i-get-free-spins-on-coin-master_GM406889139.pdf
    • http://miperwanida.me/__statics/gudangsoal/files/free-minecraft-pe-server_GM479516143.pdf
    • http://miperwanida.me/__statics/gudangsoal/files/coin-master-free-spin-codes_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004b60.bin
d24409db0fbe45eea15047dd42f32f54925ae36fb001ace20b4a7e7b8b7e62ba
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B60 24820 bytes
font_01_sfnt_off00008378.bin
bb090f263e704b9e364c49221e502887c5f7468e186fb315b70110f66f8504d6
pdf-font-stream PDF embedded font (sfnt) at offset 0x8378 18232 bytes