Malicious PDF — malware analysis report

Static analysis result for SHA-256 95c962d44088983e…

MALICIOUS

PDF

227.3 KB Created: 2021-07-05 22:55:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 661cbbde1ad4ad2cb5668b210bfeeb45 SHA-1: acc26bfcd4d612a9afbfdca8417958ea54fed78e SHA-256: 95c962d44088983ee8e1d432cd47f0b079069cc8e2016219f2675654c410dacf
132 Risk Score

Malware Insights

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

The PDF document contains heuristics indicating it presents a fake CAPTCHA and a download button, common social engineering tactics to trick users into installing malicious software or extensions. The document also contains a URL that likely leads to a malicious payload or phishing site. The combination of these elements suggests an attempt to compromise the user's system through deceptive means.

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-7km-eggs-august-2021-game-hack
    • http://library.gkigadingserpong.org/repository/minecraft-hack-mod_GM479516143.pdf
    • http://library.gkigadingserpong.org/repository/roblox-paypal-cheat_GM431946152.pdf
    • http://library.gkigadingserpong.org/repository/free-bling-bling-card-coin-master_GM406889139.pdf
    • http://www.library.gkigadingserpong.org/repository/minecraft-complete-handbook_GM479516143.pdf
    • http://www.library.gkigadingserpong.org/repository/coin-master-free-spins-and-coins-blogspot_GM406889139.pdf
    • http://www.library.gkigadingserpong.org/repository/minecraft-free-version_GM479516143.pdf
    • http://library.gkigadingserpong.org/repository/is-there-any-free-ways-of-getting-robux_GM431946152.pdf
    • http://www.library.gkigadingserpong.org/repository/rose-v1-download-roblox-hack_GM431946152.pdf
    • http://library.gkigadingserpong.org/repository/codes-to-get-free-robux_GM431946152.pdf
    • http://library.gkigadingserpong.org/repository/games-like-roblox-but-free_GM431946152.pdf
    • http://www.library.gkigadingserpong.org/repository/free-gold-cards-coin-master_GM406889139.pdf
    • http://library.gkigadingserpong.org/repository/roblox-tiny-tanks-cheats_GM431946152.pdf
    • http://library.gkigadingserpong.org/repository/roblox-counter-strike-hacks_GM431946152.pdf
    • http://www.library.gkigadingserpong.org/repository/coin-master-free-spin-now_GM406889139.pdf
    • http://library.gkigadingserpong.org/repository/how-do-you-install-minecraft-for-free_GM479516143.pdf
    • http://www.library.gkigadingserpong.org/repository/how-to-hack-roblox-accounts-2021_GM431946152.pdf
    • http://library.gkigadingserpong.org/repository/cheat-avatar-roblox_GM431946152.pdf
    • http://library.gkigadingserpong.org/repository/cheats-for-phantom-forces-roblox_GM431946152.pdf
    • http://library.gkigadingserpong.org/repository/free-roblox-account-2021_GM431946152.pdf
    • http://library.gkigadingserpong.org/repository/free-spin-coin-master-game_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_023_off0003200a.bin
08c148c15a188e459252503dcc92f287c5e3a5c4a41128b8a0775632f90e4b99		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3200A 25576 bytes
font_01_sfnt_off00035c0e.bin
0c0cc117c1dc3dc4e0dac5cd0c94423befda0e1f16e80a93755075d179263fca		 pdf-font-stream PDF embedded font (sfnt) at offset 0x35C0E 19060 bytes

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