Malicious PDF — malware analysis report

Static analysis result for SHA-256 20e8d09a9f26c28f…

MALICIOUS

PDF

45.6 KB Created: 2021-06-03 10:53:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 12fd5cc923c20896d64e60b1baf5c340 SHA-1: a9fb07714c639f0fa23bbf98a8ea0ad1fd7abe67 SHA-256: 20e8d09a9f26c28f035e6f6ee3b6d1d144a20b5058f6ced90a2aa8429d7c118b
82 Risk Score

Malware Insights

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

The document presents a fake CAPTCHA or human verification prompt to trick the user into interacting with a malicious link. The embedded URL, https://netcdn.online/app/406889139/online-coin-master-hack-here-game-hack, is the primary indicator of malicious intent. The document's content and heuristics strongly suggest a social engineering tactic to deliver a payload or redirect to a phishing site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

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.online/app/406889139/online-coin-master-hack-here-game-hack
    • http://perpus.poltekkes-tanjungpinang.ac.id/repository/tower-of-hell-roblox-hack_GM431946152.pdf
    • http://perpus.poltekkes-tanjungpinang.ac.id/repository/coinmasterdailyfreespins-com_GM406889139.pdf
    • http://perpus.poltekkes-tanjungpinang.ac.id//repository/free-roblox-printables_GM431946152.pdf
    • http://perpus.poltekkes-tanjungpinang.ac.id//repository/play-coin-master-online-free_GM406889139.pdf
    • http://perpus.poltekkes-tanjungpinang.ac.id/repository/coin-master-unlimited-spins_GM406889139.pdf
    • http://perpus.poltekkes-tanjungpinang.ac.id/repository/smart-lodhi-coin-master-hack_GM406889139.pdf
    • http://perpus.poltekkes-tanjungpinang.ac.id/repository/free-robux-come_GM431946152.pdf
    • http://perpus.poltekkes-tanjungpinang.ac.id//repository/coin-master-free-spin-link-today-2021_GM406889139.pdf
    • http://perpus.poltekkes-tanjungpinang.ac.id/repository/coin-master-hack-apk-android-1_GM406889139.pdf
    • http://perpus.poltekkes-tanjungpinang.ac.id//repository/what-are-points-for-in-roblox_GM431946152.pdf
    • http://perpus.poltekkes-tanjungpinang.ac.id//repository/how-to-get-free-robux-codes_GM431946152.pdf
    • http://perpus.poltekkes-tanjungpinang.ac.id/repository/roblox-sexually_GM431946152.pdf
    • http://perpus.poltekkes-tanjungpinang.ac.id//repository/coin-master-hack-reddit_GM406889139.pdf
    • http://perpus.poltekkes-tanjungpinang.ac.id/repository/free-spin-coin-master-hacktoman_GM406889139.pdf
    • http://perpus.poltekkes-tanjungpinang.ac.id/repository/free-coin-master-hacks-no-verification-or-survey_GM406889139.pdf
    • http://perpus.poltekkes-tanjungpinang.ac.id//repository/daily-free-spins-on-coin-master_GM406889139.pdf
    • http://perpus.poltekkes-tanjungpinang.ac.id//repository/free-robux-hack-no-human-verification_GM431946152.pdf
    • http://perpus.poltekkes-tanjungpinang.ac.id//repository/free-coin-master-game_GM406889139.pdf
    • http://perpus.poltekkes-tanjungpinang.ac.id/repository/robux-today_GM431946152.pdf
    • http://perpus.poltekkes-tanjungpinang.ac.id//repository/can-u-get-free-robux_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off0000506a.bin
6c0c7a3fcc361def7fc203580cca0b8dcbbe25fdf9b1b656db5958677629700c		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x506A 29124 bytes
font_01_sfnt_off00009158.bin
d889680f8fc551e7ec9bfaa07df1fa67f8392890936cf776d8bfe8a659ce498a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9158 17788 bytes

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