Malicious PDF — malware analysis report

Static analysis result for SHA-256 2cada2d5fe29704c…

MALICIOUS

PDF

35.6 KB Created: 2021-06-25 11:27:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: a3bc7af8913a05c863efd260e91ec347 SHA-1: a17156fe330a3fcdac8bf8968f1aac587b2ee908 SHA-256: 2cada2d5fe29704cc93b82ef602e9858c33b1035b01f8a6694e52f8cd2fe80d8
82 Risk Score

Malware Insights

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

The PDF document contains a fake CAPTCHA lure, a common social engineering tactic to trick users into clicking malicious links or downloading files. The embedded URL points to a resource promising free Robux, a popular lure for gamers. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/431946152/how-to-get-free-robux-using-inspect-2021-game-hack
    • https://apply.skubi.eu.org/wp-content/uploads/fsqm-files/how-to-hack-roblox-in-poison-life_GM431946152.pdf
    • https://apply.skubi.eu.org/wp-content/uploads/fsqm-files/how-hack-roblox-money_GM431946152.pdf
    • https://apply.skubi.eu.org/wp-content/uploads/fsqm-files/new-hack-for-roblox-deathrun-2021-pc-download_GM431946152.pdf
    • https://apply.skubi.eu.org/wp-content/uploads/fsqm-files/free-roblox-outfits-for-avatar_GM431946152.pdf
    • https://apply.skubi.eu.org/wp-content/uploads/fsqm-files/how-to-hack-roblox-games-2021_GM431946152.pdf
    • https://apply.skubi.eu.org/wp-content/uploads/fsqm-files/roblox-robux-hack-game_GM431946152.pdf
    • https://apply.skubi.eu.org/wp-content/uploads/fsqm-files/roblox-bubblegum-simulator-cheats_GM431946152.pdf
    • https://apply.skubi.eu.org/wp-content/uploads/fsqm-files/free-pets-in-roblox-bubble-gum-simulator_GM431946152.pdf
    • https://apply.skubi.eu.org/wp-content/uploads/fsqm-files/roblox-free-script-executor-2021_GM431946152.pdf
    • https://apply.skubi.eu.org/wp-content/uploads/fsqm-files/free-rich-roblox-accounts-passwords_GM431946152.pdf
    • https://apply.skubi.eu.org/wp-content/uploads/fsqm-files/we-hack-com-roblox_GM431946152.pdf
    • https://apply.skubi.eu.org/wp-content/uploads/fsqm-files/counter-blocks-roblox-offensive-hacks-unknowncheats_GM431946152.pdf
    • https://apply.skubi.eu.org/wp-content/uploads/fsqm-files/how-to-hack-roblox-jailbreak-beginner_GM431946152.pdf
    • https://apply.skubi.eu.org/wp-content/uploads/fsqm-files/free-robux-no-human-verification-or-survey_GM431946152.pdf
    • https://apply.skubi.eu.org/wp-content/uploads/fsqm-files/prison-life-roblox-hacks-2021_GM431946152.pdf
    • https://apply.skubi.eu.org/wp-content/uploads/fsqm-files/roblox-mouse-free_GM431946152.pdf
    • https://apply.skubi.eu.org/wp-content/uploads/fsqm-files/roblox-under-fighters-2-hacked-apk_GM431946152.pdf
    • https://apply.skubi.eu.org/wp-content/uploads/fsqm-files/descargar-qtx-hack-roblox_GM431946152.pdf
    • https://apply.skubi.eu.org/wp-content/uploads/fsqm-files/coin-master-free-coins-link_GM406889139.pdf
    • https://apply.skubi.eu.org/wp-content/uploads/fsqm-files/redeem-card-codes-free-roblox_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000032fc.bin
40621093ae70ca58123b7548df74f270247a3d20560208fe75bfe51dcaf78865		 pdf-font-stream PDF embedded font (sfnt) at offset 0x32FC 22208 bytes
font_01_sfnt_off00006456.bin
64b800a9af961e2fa3d2760efa958af0ae2d637598a92448f05f412a9d3a0911		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6456 19680 bytes

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