Malicious PDF — malware analysis report

Static analysis result for SHA-256 e430b247506bd400…

MALICIOUS

PDF

43.8 KB Created: 2021-04-03 17:38:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: d5fe8ab6c4d25758f74cbba7b240248d SHA-1: f96ff8b5e9a873adb0381a3c269c9dcdcc724bdc SHA-256: e430b247506bd4004ce2e9922107177cd825e864e27ff39de0963a36fbe26171
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document was flagged as malicious by an ML classifier. It uses a fake-CAPTCHA lure. The file presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9213

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://gaminggenerator.org/app/431946152/free-robux-hack-no-human-verification-2021-pc PDF link annotation
    • https://www.porthos.it/images/free-robux-cards-pin.pdf%0AIn PDF document text
    • http://kruiz21.ru/images/free-robux-hack-forum-by-envix.pdf%0AIn PDF document text
    • http://uctovnictvosnv.sk/images/speed-hack-download-roblox.pdf%0AIn PDF document text
    • http://www.web.stc-part.co.th/images/meme-hacks-roblox.pdf%0AIn PDF document text
    • https://www.lavigny.ch/images/script-lua-roblox-hack-github.pdf%0AIn PDF document text
    • https://pemadamapi.net/images/how-to-join-anyone-on-roblox-hack.pdf%0AIn PDF document text
    • https://amatq.ca/images/how-to-get-free-robux-in-a-ad.pdf%0AIn PDF document text
    • http://www.occquimica.com.br/images/como-recuperar-mi-cuenta-de-roblox-hackeada.pdf%0AIn PDF document text
    • http://agrao.in/images/roblox-hack-menu-2021.pdf%0AIn PDF document text
    • https://www.coriglianocalabro.it/images/how-to-get-free-robux-no-verification-2021.pdf%0AIn PDF document text
    • http://www.vktzunami.cz/images/free-gift-card-roblox-wix.pdf%0AIn PDF document text
    • http://echosvoix.ch/images/roblox-how-to-upload-audio-for-free.pdf%0AIn PDF document text
    • http://www.rezbb.sk/images/how-to-hack-island-royale-roblox.pdf%0AIn PDF document text
    • http://www.fanciullovito.it/images/hack-any-hat-roblox.pdf%0AIn PDF document text
    • http://www.torvet11.dk/images/xonnek-hack-de-roblox.pdf%0AIn PDF document text
    • http://ff-obertraun.at/images/roblox-online-roblox-hack.pdf%0AIn PDF document text
    • http://www.malonmalon.com.ar/images/robux-for-free-no-downloading-apps.pdf%0AIn PDF document text
    • http://zarinnameh.ir/images/how-to-hack-roblox-with-developer-tools.pdf%0AIn PDF document text
    • https://tokunfome.com.br/images/roblox-katana-and-knife-hack.pdf%0AIn PDF document text
    • http://www.zdravazena.sk/images/free-robux-without-verification-code.pdf%0AIn PDF document text
    • http://cosver.eu/images/roblox-scp-079-free-model.pdf%0AIn PDF document text
    • http://www.lionel-seppoloni.fr/images/free-robux-hack-script-2021.pdf%0AIn PDF document text
    • http://www.vktzunami.cz/images/free-catalogs-on-roblox.pdf%0AIn PDF document text
    • https://www.millatgears.com/images/free-commands-for-roblox-without-admin.pdf%0AIn PDF document text
    • https://pa-waingapu.go.id/images/roblox-exploit-scripts-free.pdf%0AIn PDF document text
    • http://domaizdereva24.ru/images/roblox-its-free-music-id.pdf%0AIn PDF document text
    • http://www.lovecraftiana.com.ar/images/cute-outfits-for-free-robux.pdf%0AIn PDF document text
    • https://www.academiaanticorrupcion.org/images/cheat-roblox-lumber-tyccon-fly.pdf%0AIn PDF document text
    • http://ff-obertraun.at/images/roblox-com-free-accounts.pdf%0AIn PDF document text
    • https://www.saisystem.it/images/pastebin-how-to-get-free-robux.pdf%0AIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off0000450f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x450F 23660 bytes
SHA-256: 8b1babe08f46145b648d42eea349434fe1db6f85e3803edaa2967d9064a82af7
font_01_sfnt_off00007ab7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7AB7 2912 bytes
SHA-256: 02b35010e2614e3cc95ac6414c49295350c91fdfcc4b4cad27ffdbc10e80df7f
font_02_sfnt_off000084b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84B3 19280 bytes
SHA-256: a1c11864588717376c4e3450f5e7cacfce1abfb9bf5e15fa8273c4c4b8896d3b

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