Malicious PDF — malware analysis report

Static analysis result for SHA-256 910000fa33e3dd7c…

MALICIOUS

PDF

227.1 KB Created: 2021-07-05 17:34:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 2e743cf93d6c6af606d0b8f3a82a6ea4 SHA-1: f380714feaa16f5dcdf4231e7be07e7d82f5e26b SHA-256: 910000fa33e3dd7cffd16d23bc009d6f5d7240e65c70171f2ea8ee22e91f733c
132 Risk Score

Malware Insights

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

The PDF document employs social engineering tactics, presenting a fake CAPTCHA and a download button to trick the user into downloading potentially malicious content. It also includes lures related to browser extensions or updates, indicating an attempt to install unwanted software or malware. The primary URL points to a download for a 'pokemon-go-free-download-game-hack', reinforcing the lure.

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-download-game-hack
    • http://web.smkn1indramayu.sch.id/e-lib/repository/best-way-to-get-robux_GM431946152.pdf
    • http://web.smkn1indramayu.sch.id/e-lib/repository/coin-master-hack-download-apk_GM406889139.pdf
    • http://web.smkn1indramayu.sch.id/e-lib/repository/free-robux-clothes_GM431946152.pdf
    • http://web.smkn1indramayu.sch.id/e-lib/repository/minecraft-windows-free_GM479516143.pdf
    • http://web.smkn1indramayu.sch.id/e-lib/repository/roblox-hacks-and-cheats_GM431946152.pdf
    • http://web.smkn1indramayu.sch.id/e-lib/repository/free-card-from-roblox-vending-machine-in-prison-life_GM431946152.pdf
    • http://web.smkn1indramayu.sch.id/e-lib/repository/free-robux-com_GM431946152.pdf
    • http://web.smkn1indramayu.sch.id/e-lib/repository/minecraft-mobile-free_GM479516143.pdf
    • http://web.smkn1indramayu.sch.id/e-lib/repository/free-robux-generator_GM431946152.pdf
    • http://web.smkn1indramayu.sch.id/e-lib/repository/roblox-hack-site_GM431946152.pdf
    • http://web.smkn1indramayu.sch.id/e-lib/repository/coin-master-free-spins-link-today-new_GM406889139.pdf
    • http://web.smkn1indramayu.sch.id/e-lib/repository/apps-that-give-you-free-robux_GM431946152.pdf
    • http://web.smkn1indramayu.sch.id/e-lib/repository/free-vpn-for-minecraft_GM479516143.pdf
    • http://web.smkn1indramayu.sch.id/e-lib/repository/hacker-news-roblox_GM431946152.pdf
    • http://web.smkn1indramayu.sch.id/e-lib/repository/how-to-hack-people-on-roblox_GM431946152.pdf
    • http://web.smkn1indramayu.sch.id/e-lib/repository/robux-giver_GM431946152.pdf
    • http://web.smkn1indramayu.sch.id/e-lib/repository/coin-master-hack-version-download-2021_GM406889139.pdf
    • http://web.smkn1indramayu.sch.id/e-lib/repository/bloxpage-free-robux_GM431946152.pdf
    • http://web.smkn1indramayu.sch.id/e-lib/repository/free-minecraft-bedrock-server-hosting-24-7_GM479516143.pdf
    • http://web.smkn1indramayu.sch.id/e-lib/repository/free-tiktok-followers-no-human-verification_GM835599320.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_023_off00032008.bin
b4c53df2d8ff16520de1a25e13e541b05aa3f0bd9f123e7988f23f873d0472e7		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x32008 25576 bytes
font_01_sfnt_off00035c09.bin
35d0aac4b688ba2d3778bce521545e603087c53921ee31f4c9e30c8222ed3ae0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x35C09 18940 bytes

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