Malicious PDF — malware analysis report

Static analysis result for SHA-256 5198053dcc229d95…

MALICIOUS

PDF

226.8 KB Created: 2021-07-06 03:27:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 1059c874b15542c7540923cb466681b9 SHA-1: cfa30493c071077ba76327ab0092dd90e1a6d7ad SHA-256: 5198053dcc229d956f78eb1bf1d31e5af2a3aa986cfb0a5914f9bcb38b34a6c9
172 Risk Score

Malware Insights

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

The PDF document contains multiple social engineering lures, including a fake CAPTCHA, a browser extension installation prompt, and a download button, all designed to trick the user into executing malicious content. The embedded URL points to a suspicious download, likely a second-stage payload. The document's content and heuristics strongly suggest a phishing or malware delivery attempt.

Machine Learning

  • Nyx PDF Classifier clean score 0.0118

Heuristics 7

  • 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
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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/free-pokemon-go-joystick-2021-game-hack
    • http://library.itekes-bali.ac.id/repository/hack-roblox-account-to-get-password_GM431946152.pdf
    • http://library.itekes-bali.ac.id/repository/roblox-upcoming-free-items_GM431946152.pdf
    • http://library.itekes-bali.ac.id/repository/client-minecraft_GM479516143.pdf
    • http://library.itekes-bali.ac.id/repository/free-roblox-games-that-you-can-play_GM431946152.pdf
    • http://library.itekes-bali.ac.id/repository/roblox-aimbot-hack-phantom-forces-2021_GM431946152.pdf
    • http://library.itekes-bali.ac.id/repository/free-robux-meme_GM431946152.pdf
    • http://library.itekes-bali.ac.id/repository/bloxxer-free-robux_GM431946152.pdf
    • http://library.itekes-bali.ac.id/repository/free-roblox-gift-card-codes-2021-march_GM431946152.pdf
    • http://library.itekes-bali.ac.id/repository/roblox-free-promo-codes-2021_GM431946152.pdf
    • http://library.itekes-bali.ac.id/repository/free-robux-generator-for-kids_GM431946152.pdf
    • http://library.itekes-bali.ac.id/repository/krnl-roblox_GM431946152.pdf
    • http://library.itekes-bali.ac.id/repository/free-aimbot-for-roblox_GM431946152.pdf
    • http://library.itekes-bali.ac.id/repository/how-to-hack-someones-roblox-account_GM431946152.pdf
    • http://library.itekes-bali.ac.id/repository/free-robux-gen_GM431946152.pdf
    • http://library.itekes-bali.ac.id/repository/bloxburg-house-builders-free-roblox_GM431946152.pdf
    • http://library.itekes-bali.ac.id/repository/oprewards-robux_GM431946152.pdf
    • http://library.itekes-bali.ac.id/repository/coin-monster_GM406889139.pdf
    • http://library.itekes-bali.ac.id/repository/how-get-free-gear-on-roblox_GM431946152.pdf
    • http://library.itekes-bali.ac.id/repository/free-robux-with-no-survey_GM431946152.pdf
    • http://library.itekes-bali.ac.id/repository/best-shirt-roblox-free_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_023_off00031da2.bin
62ffb26b0653732cd1d4c4bcfb79e3dc1ba9df792320ae40d13201c2a793a6bb		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x31DA2 25576 bytes
font_01_sfnt_off0003599d.bin
7e725c2fa7dc5f7f8ffe2ab444252cdde17098c52229f4034604f017796aedcc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3599D 19328 bytes

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