Malicious PDF — malware analysis report

Static analysis result for SHA-256 70c04a8bb2af7009…

MALICIOUS

PDF

45.2 KB Created: 2021-05-11 06:14:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 2bedad36a8d13ba75953f082ee740536 SHA-1: 69ef225715691fcae0d26d8d0a616d5834d099bc SHA-256: 70c04a8bb2af7009c2bb6a1d8a50a3403512015b4e386fa2d3477250eb99f8c6
82 Risk Score

Malware Insights

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

The PDF document contains a fake CAPTCHA lure, designed to trick users into interacting with malicious links. The embedded URL and numerous other URLs point to sites offering game hacks or cheats, suggesting a social engineering tactic to deliver malware. No scripts were extracted, but the presence of a fake CAPTCHA and external links strongly indicates a malicious intent to trick the user into downloading a payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9621

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/431946152/how-to-hack-someone-on-roblox-game-hack
    • http://perpus.poltekkes-tanjungpinang.ac.id/repository/free-roblox-hack-us_GM431946152.pdf
    • http://perpus.poltekkes-tanjungpinang.ac.id//repository/robux-hack-no-human-verification_GM431946152.pdf
    • http://perpus.poltekkes-tanjungpinang.ac.id/repository/coin-master-33-hack-version-download_GM406889139.pdf
    • http://perpus.poltekkes-tanjungpinang.ac.id//repository/free-robux-2021-no-human-verification_GM431946152.pdf
    • http://perpus.poltekkes-tanjungpinang.ac.id/repository/minecraft-pc-download-free-full-version_GM479516143.pdf
    • http://perpus.poltekkes-tanjungpinang.ac.id//repository/free-robux-generator-2021-no-human-verification_GM431946152.pdf
    • http://perpus.poltekkes-tanjungpinang.ac.id//repository/roblox-apk-hack_GM431946152.pdf
    • http://perpus.poltekkes-tanjungpinang.ac.id/repository/coin-master-free-spins-link-today-2021_GM406889139.pdf
    • http://perpus.poltekkes-tanjungpinang.ac.id/repository/roblox-promo-codes-free-robux_GM431946152.pdf
    • http://perpus.poltekkes-tanjungpinang.ac.id//repository/play-coin-master_GM406889139.pdf
    • http://perpus.poltekkes-tanjungpinang.ac.id//repository/how-do-you-get-free-pet-food-in-coin-master_GM406889139.pdf
    • http://perpus.poltekkes-tanjungpinang.ac.id/repository/how-to-get-free-minecraft-alts_GM479516143.pdf
    • http://perpus.poltekkes-tanjungpinang.ac.id//repository/roblox-account-taker_GM431946152.pdf
    • http://perpus.poltekkes-tanjungpinang.ac.id/repository/village-coin_GM406889139.pdf
    • http://perpus.poltekkes-tanjungpinang.ac.id/repository/minecraft-xbox-one-edition-digital-code-free_GM479516143.pdf
    • http://perpus.poltekkes-tanjungpinang.ac.id/repository/best-minecraft-hacks_GM479516143.pdf
    • http://perpus.poltekkes-tanjungpinang.ac.id/repository/coin-master-free-spins-app_GM406889139.pdf
    • http://perpus.poltekkes-tanjungpinang.ac.id//repository/windows-10-minecraft-hacks_GM479516143.pdf
    • http://perpus.poltekkes-tanjungpinang.ac.id/repository/free-spins-and-coins-for-coin-master-game_GM406889139.pdf
    • http://perpus.poltekkes-tanjungpinang.ac.id/repository/roblox-free-body_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004b5d.bin
032613c2ec8ae137707e5b8584645da8704b4ceacccff0ebafcea8302b296f3c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4B5D 24668 bytes
font_01_sfnt_off00008367.bin
96a70491b0783ad8c6fc9b11a18f021aa22c69ac41ee4499b781d16a1b99b689		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8367 2820 bytes
font_02_sfnt_off00008d08.bin
eebf4fd0ce8e014a693b7448b6f63c7fd528199174cddc1a90a23252bff1a633		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8D08 18608 bytes

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