Malicious PDF — malware analysis report

Static analysis result for SHA-256 b8056798e76cd85e…

MALICIOUS

PDF

46.6 KB Created: 2021-05-16 16:38:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 4b97733ad31f87a596ef957f661468d2 SHA-1: 689d94781f0ae68c840e4a9415cc39ecce340544 SHA-256: b8056798e76cd85eaac862ab6185a7a5d87abb7c6e7cb71803ee5b49b2e5138f
82 Risk Score

Malware Insights

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

The PDF document contains a fake CAPTCHA and a call-to-action lure, directing users to a URL that promises free in-game currency. This is a common social engineering tactic to trick users into downloading malicious files or visiting phishing sites. The ML classifier also flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8948

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/free-coin-master-coins-and-spins-game-hack
    • http://iluvlocalplaces.com/images/coin-master-free-spins-app_GM406889139.pdf
    • http://iluvlocalplaces.com/images/is-minecraft-realms-free_GM479516143.pdf
    • http://iluvlocalplaces.com/images/minecraft-windows-10-hack-client-2021_GM479516143.pdf
    • http://iluvlocalplaces.com/images/coin-master-35-2-hack_GM406889139.pdf
    • http://iluvlocalplaces.com/images/how-to-get-free-robux-2021-no-human-verification_GM431946152.pdf
    • http://iluvlocalplaces.com/images/free-robux-generator-for-roblox-2021_GM431946152.pdf
    • http://iluvlocalplaces.com/images/robux-hack-no-human-verification_GM431946152.pdf
    • http://iluvlocalplaces.com/images/www-coin-master-hack-xyz_GM406889139.pdf
    • http://iluvlocalplaces.com/images/free-coin-master-spins-link_GM406889139.pdf
    • http://iluvlocalplaces.com/images/minecraft-auto-miner-hack_GM479516143.pdf
    • http://iluvlocalplaces.com/images/get-free-robux-now_GM431946152.pdf
    • http://iluvlocalplaces.com/images/free-spin-hack-coin-master-2021_GM406889139.pdf
    • http://iluvlocalplaces.com/images/is-windows-10-minecraft-free_GM479516143.pdf
    • http://iluvlocalplaces.com/images/coin-drop-master-free_GM406889139.pdf
    • http://iluvlocalplaces.com/images/how-to-get-free-spins-in-coin-master-2021_GM406889139.pdf
    • http://iluvlocalplaces.com/images/coin-master-spin-link-today-2021_GM406889139.pdf
    • http://iluvlocalplaces.com/images/free-roblox-generator-for-roblox_GM431946152.pdf
    • http://iluvlocalplaces.com/images/how-to-actually-get-free-robux_GM431946152.pdf
    • http://iluvlocalplaces.com/images/minecraft-java-free-account_GM479516143.pdf
    • http://iluvlocalplaces.com/images/coin-master-2021_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004a1b.bin
4355a523f77992437bc56b9a366ab71c18d88988e1cbf973a2a7cbf1b4a7810f		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A1B 28256 bytes
font_01_sfnt_off00008a2b.bin
c8780c36cbd7b68556bee1903ce902c42a0217aeb75790306612d0c333785550		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8A2B 2912 bytes
font_02_sfnt_off0000943a.bin
11bd500b33c169b65e53ecddb4cd7ac7428d9a9bdc32d60ba78f45c9260aee9d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x943A 18060 bytes

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