Malicious PDF — malware analysis report

Static analysis result for SHA-256 0660a509e70a81c2…

MALICIOUS

PDF

43.0 KB Created: 2021-05-19 02:09:09 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: d67b8f646e128406f2c2d9e9530220a1 SHA-1: 74cc8e5b861ad5bc1bb732f7a2a25baed69e6c52 SHA-256: 0660a509e70a81c2db90c521338251e45d6286725c76f2676487dc182f66031a
82 Risk Score

Malware Insights

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

The document presents a fake CAPTCHA or verification prompt to trick the user into clicking a malicious link. The embedded URL and numerous other URLs found in the document body all point to sites offering game-related cheats or hacks, suggesting a social engineering lure for potentially unwanted or malicious content. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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 https://netcdn.xyz/app/406889139/free-spins-coin-master-daily-game-hack
    • http://repository.poliven.ac.id/repository/free-coin-master-hacks-no-verification-or-survey_GM406889139.pdf
    • http://repository.poliven.ac.id//repository/how-do-i-get-free-robux_GM431946152.pdf
    • http://repository.poliven.ac.id/repository/coin-master-daily-free-spins-link-haktuts_GM406889139.pdf
    • http://repository.poliven.ac.id//repository/how-to-get-free-robux-without-verifying_GM431946152.pdf
    • http://repository.poliven.ac.id/repository/how-to-get-minecraft-for-free-on-xbox-one_GM479516143.pdf
    • http://repository.poliven.ac.id/repository/coin-master-free-spins-and-coins-daily_GM406889139.pdf
    • http://repository.poliven.ac.id//repository/get-me-free-robux_GM431946152.pdf
    • http://repository.poliven.ac.id//repository/how-to-get-robux-for-free-2021_GM431946152.pdf
    • http://repository.poliven.ac.id/repository/how-to-make-a-group-on-roblox-for-free_GM431946152.pdf
    • http://repository.poliven.ac.id//repository/coin-master-deals_GM406889139.pdf
    • http://repository.poliven.ac.id/repository/coin-master-fb-free-spins-link_GM406889139.pdf
    • http://repository.poliven.ac.id/repository/free-coin-spin-daily-link-for-coin-master-game_GM406889139.pdf
    • http://repository.poliven.ac.id//repository/free-robux-obby-2021_GM431946152.pdf
    • http://repository.poliven.ac.id/repository/how-to-get-free-minecraft-windows-10_GM479516143.pdf
    • http://repository.poliven.ac.id//repository/coin-master-free-spins-save_GM406889139.pdf
    • http://repository.poliven.ac.id/repository/daily-coin-master-link_GM406889139.pdf
    • http://repository.poliven.ac.id/repository/rblx-city-free-robux_GM431946152.pdf
    • http://repository.poliven.ac.id/repository/free-robux-without-human-verification-real_GM431946152.pdf
    • http://repository.poliven.ac.id//repository/i-want-free-robux_GM431946152.pdf
    • http://repository.poliven.ac.id//repository/free-coin-master-gold-cards_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004b6a.bin
a95159ebc5ee97ca3e12ef804c6d6812f61c8f38457c7fb44006bd957f4120c3		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B6A 25512 bytes
font_01_sfnt_off00008592.bin
148513adc370bd80d4aa437ff839b9fedc0d32c70a1f1942828a2071191e315e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8592 18308 bytes

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