Malicious PDF — malware analysis report

Static analysis result for SHA-256 441169f96f2849ca…

MALICIOUS

PDF

226.2 KB Created: 2021-07-03 12:29:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 8441ec80e96f9608c66f8d0eea5945f3 SHA-1: 2e9fa034b5faf49e2c672e0a56521ed3a25dbc2a SHA-256: 441169f96f2849ca936ab4c75b10bf3cab7d22109c54e149df114d19c3d1f997
132 Risk Score

Malware Insights

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

The file is a PDF that presents a fake CAPTCHA and a browser extension installation lure to deceive the user. It also contains an embedded URL pointing to a potential download. The heuristics indicate a social engineering attack aimed at tricking users into installing unwanted software or visiting malicious sites.

Machine Learning

  • Nyx PDF Classifier clean score 0.0118

Heuristics 6

  • 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
  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise pattern
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • 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/1094591345/pokemon-go-free-metagross-game-hack
    • http://library.unissula.ac.id/fk//repository/best-minecraft-hacks_GM479516143.pdf
    • http://library.unissula.ac.id/fe/repository/coin-master-cards_GM406889139.pdf
    • http://library.unissula.ac.id/fk/repository/coin-master-hack-com_GM406889139.pdf
    • http://library.unissula.ac.id/fe/repository/roblox-fun-com-robux_GM431946152.pdf
    • http://library.unissula.ac.id/fe/repository/mobihack-roblox-hack_GM431946152.pdf
    • http://library.unissula.ac.id/fk/repository/roblox-weight-lifting-simulator-3-strength-hack_GM431946152.pdf
    • http://library.unissula.ac.id/fe/repository/robux-place-rewards_GM431946152.pdf
    • http://library.unissula.ac.id/fe/repository/hack-de-roblox-para-atravesar-cosas-facilmente_GM431946152.pdf
    • http://library.unissula.ac.id/fe/repository/robux-cheats-for-roblox-app_GM431946152.pdf
    • http://library.unissula.ac.id/fe/repository/sinner-hack-roblox_GM431946152.pdf
    • http://library.unissula.ac.id/fe/repository/rbx-robux_GM431946152.pdf
    • http://library.unissula.ac.id/fe/repository/coin-master-free-spin-link-today-50_GM406889139.pdf
    • http://library.unissula.ac.id/fk/repository/coin-master-free-coins-and-spins-link_GM406889139.pdf
    • http://library.unissula.ac.id/fe/repository/coin-master-jackpot-hack_GM406889139.pdf
    • http://library.unissula.ac.id/fk//repository/is-roblox-studio-free_GM431946152.pdf
    • http://library.unissula.ac.id/fe/repository/spin-and-coin_GM406889139.pdf
    • http://library.unissula.ac.id/fk/repository/roblox-marketplace-free_GM431946152.pdf
    • http://library.unissula.ac.id/fk/repository/free-robux-profile_GM431946152.pdf
    • http://library.unissula.ac.id/fk/repository/how-to-get-everything-free-on-roblox-2021_GM431946152.pdf
    • http://library.unissula.ac.id/fk/repository/how-to-hack-roblox-4-free-robux_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_023_off00031d8e.bin
6128d3c1417ce2bd29223edd31154114ed1ae1d0f4b86669ec17a52088a44535		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x31D8E 25576 bytes
font_01_sfnt_off00035999.bin
5d972aa6867562d914833a556ad49c0520805417e23d577355204666d5e2c961		 pdf-font-stream PDF embedded font (sfnt) at offset 0x35999 18460 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.