Malicious PDF — malware analysis report

Static analysis result for SHA-256 c3ce7676bf90cf91…

MALICIOUS

PDF

46.4 KB Created: 2021-05-31 17:50:43 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 08a38fc071cd82c335a29c078b446fbe SHA-1: 5b9e03557d0c98e99f3057c5946c2d1fea9a55df SHA-256: c3ce7676bf90cf91527a26c0ed8af3e7f8309fbc3a6efed487a4106430727a53
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The document presents a fake CAPTCHA lure to trick users into clicking a link, which is a common social engineering tactic. The embedded URL and numerous other URLs point to sites offering game-related cheats and hacks, suggesting a lure for potentially malicious downloads. While no scripts were directly extracted, the PDF structure and ML classifier indicate malicious intent, likely involving exploitation for client execution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9832

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-roblox-accounts-with-command-prompt-game-hack
    • https://taxandmore.nl/wp-content/uploads/fsqm-files/free-minecraft-server-hosting_GM479516143.pdf
    • https://taxandmore.nl/wp-content/uploads/fsqm-files/free-tiktok-fans-no-verification_GM835599320.pdf
    • https://taxandmore.nl/wp-content/uploads/fsqm-files/change-stat-roblox-cheat-engine_GM431946152.pdf
    • https://taxandmore.nl/wp-content/uploads/fsqm-files/free-robux-100-real_GM431946152.pdf
    • https://taxandmore.nl/wp-content/uploads/fsqm-files/free-ways-to-get-robux_GM431946152.pdf
    • https://taxandmore.nl/wp-content/uploads/fsqm-files/how-to-play-minecraft-for-free_GM479516143.pdf
    • https://taxandmore.nl/wp-content/uploads/fsqm-files/rbl-gg-free-robux_GM431946152.pdf
    • https://taxandmore.nl/wp-content/uploads/fsqm-files/coin-master-free-spins-app_GM406889139.pdf
    • https://taxandmore.nl/wp-content/uploads/fsqm-files/free-robux-group_GM431946152.pdf
    • https://taxandmore.nl/wp-content/uploads/fsqm-files/roblox-one-piece-ocean-voyage-hack_GM431946152.pdf
    • https://taxandmore.nl/wp-content/uploads/fsqm-files/classic-minecraft-net-hacks_GM479516143.pdf
    • https://taxandmore.nl/wp-content/uploads/fsqm-files/free-promo-codes-for-robuxs_GM431946152.pdf
    • https://taxandmore.nl/wp-content/uploads/fsqm-files/minecraft-hack-mod_GM479516143.pdf
    • https://taxandmore.nl/wp-content/uploads/fsqm-files/free-builders-club-roblox-2021_GM431946152.pdf
    • https://taxandmore.nl/wp-content/uploads/fsqm-files/free-robux-promo-codes_GM431946152.pdf
    • https://taxandmore.nl/wp-content/uploads/fsqm-files/how-to-get-free-tiktok-likes_GM835599320.pdf
    • https://taxandmore.nl/wp-content/uploads/fsqm-files/free-minecraft-website_GM479516143.pdf
    • https://taxandmore.nl/wp-content/uploads/fsqm-files/get-minecraft-for-free_GM479516143.pdf
    • https://taxandmore.nl/wp-content/uploads/fsqm-files/free-robux-legit_GM431946152.pdf
    • https://taxandmore.nl/wp-content/uploads/fsqm-files/how-to-get-free-robux-no-verification_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000055ed.bin
a3ce1130866f910ef5ee757cb32be3afe7ddb3b68fcefe2ded360b17b7d5efbf
pdf-font-stream PDF embedded font (sfnt) at offset 0x55ED 24776 bytes
font_01_sfnt_off00008e5f.bin
fe36e2b3300dfec6bb01f129cd81f5cabf801c38eeb84cc05e45feb667e7742b
pdf-font-stream PDF embedded font (sfnt) at offset 0x8E5F 19840 bytes